Commit Graph

1468 Commits

Author SHA1 Message Date
Xuewen Yan
c6fb9f6636 ANDROID: Add vendor hook to the effective_cpu_util
android_rvh_effective_cpu_util:
	To perform vendor-specific cpu util, it is used in EAS/schedutil/thermal.

The effective_cpu_util would be called when thermal calc the dynamic power,
it's non-atomic context, so set the hook be restricted.

Bug: 226686099
Test: build pass

Signed-off-by: Xuewen Yan <xuewen.yan@unisoc.com>
Change-Id: I6fd77f44ca4328f5ef37d96989aa2e08d65e29bb
2022-04-01 17:12:18 +00:00
Sai Harshini Nimmala
a018077c4d ANDROID: sched/core: Optimize vendor hook placement
Currently, the tick_entry vendor hook in the scheduler tick path is
called before the rq clock is updated.
Change the vendor hook placement to after the clock update so that an
updated clock value is used.

Fixes: ca60d78542 ("Revert "Revert "ANDROID: Sched: Add restricted
vendor hooks for scheduler""")
Signed-off-by: Sai Harshini Nimmala <quic_snimmala@quicinc.com>
Change-Id: Ieee88da1cf803c68212b96b79e45d216d0696d0d
2022-03-18 17:37:02 +00:00
Peter Zijlstra
f82f0ceba5 UPSTREAM: sched: Fix yet more sched_fork() races
commit b1e8206582f9d680cff7d04828708c8b6ab32957 upstream.

Where commit 4ef0c5c6b5ba ("kernel/sched: Fix sched_fork() access an
invalid sched_task_group") fixed a fork race vs cgroup, it opened up a
race vs syscalls by not placing the task on the runqueue before it
gets exposed through the pidhash.

Commit 13765de8148f ("sched/fair: Fix fault in reweight_entity") is
trying to fix a single instance of this, instead fix the whole class
of issues, effectively reverting this commit.

Change-Id: I7c84d5e4fa32359c948f08fbf32da8bbd3d7e3ac
Fixes: 4ef0c5c6b5ba ("kernel/sched: Fix sched_fork() access an invalid sched_task_group")
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Tested-by: Zhang Qiao <zhangqiao22@huawei.com>
Tested-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Link: https://lkml.kernel.org/r/YgoeCbwj5mbCR0qA@hirez.programming.kicks-ass.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bug: 225145763
2022-03-17 15:16:11 -07:00
Tadeusz Struk
1eea6c0aeb UPSTREAM: sched/fair: Fix fault in reweight_entity
[ Upstream commit 13765de8148f71fa795e0a6607de37c49ea5915a ]

Syzbot found a GPF in reweight_entity. This has been bisected to
commit 4ef0c5c6b5ba ("kernel/sched: Fix sched_fork() access an invalid
sched_task_group")

There is a race between sched_post_fork() and setpriority(PRIO_PGRP)
within a thread group that causes a null-ptr-deref in
reweight_entity() in CFS. The scenario is that the main process spawns
number of new threads, which then call setpriority(PRIO_PGRP, 0, -20),
wait, and exit.  For each of the new threads the copy_process() gets
invoked, which adds the new task_struct and calls sched_post_fork()
for it.

In the above scenario there is a possibility that
setpriority(PRIO_PGRP) and set_one_prio() will be called for a thread
in the group that is just being created by copy_process(), and for
which the sched_post_fork() has not been executed yet. This will
trigger a null pointer dereference in reweight_entity(), as it will
try to access the run queue pointer, which hasn't been set.

Before the mentioned change the cfs_rq pointer for the task  has been
set in sched_fork(), which is called much earlier in copy_process(),
before the new task is added to the thread_group.  Now it is done in
the sched_post_fork(), which is called after that.  To fix the issue
the remove the update_load param from the update_load param() function
and call reweight_task() only if the task flag doesn't have the
TASK_NEW flag set.

Fixes: 4ef0c5c6b5ba ("kernel/sched: Fix sched_fork() access an invalid sched_task_group")
Reported-by: syzbot+af7a719bc92395ee41b3@syzkaller.appspotmail.com
Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20220203161846.1160750-1-tadeusz.struk@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
Change-Id: If81be87378ae7948e0278e30ac4a8618a434d070
Bug: 225145763
2022-03-17 15:15:55 -07:00
Greg Kroah-Hartman
16f06ae351 Merge 5.15.27 into android-5.15
Changes in 5.15.27
	mac80211_hwsim: report NOACK frames in tx_status
	mac80211_hwsim: initialize ieee80211_tx_info at hw_scan_work
	i2c: bcm2835: Avoid clock stretching timeouts
	ASoC: rt5668: do not block workqueue if card is unbound
	ASoC: rt5682: do not block workqueue if card is unbound
	regulator: core: fix false positive in regulator_late_cleanup()
	Input: clear BTN_RIGHT/MIDDLE on buttonpads
	btrfs: get rid of warning on transaction commit when using flushoncommit
	KVM: arm64: vgic: Read HW interrupt pending state from the HW
	block: loop:use kstatfs.f_bsize of backing file to set discard granularity
	tipc: fix a bit overflow in tipc_crypto_key_rcv()
	cifs: do not use uninitialized data in the owner/group sid
	cifs: fix double free race when mount fails in cifs_get_root()
	HID: amd_sfh: Handle amd_sfh work buffer in PM ops
	HID: amd_sfh: Add functionality to clear interrupts
	HID: amd_sfh: Add interrupt handler to process interrupts
	cifs: modefromsids must add an ACE for authenticated users
	selftests/seccomp: Fix seccomp failure by adding missing headers
	drm/amd/pm: correct UMD pstate clocks for Dimgrey Cavefish and Beige Goby
	selftests/ftrace: Do not trace do_softirq because of PREEMPT_RT
	dmaengine: shdma: Fix runtime PM imbalance on error
	i2c: cadence: allow COMPILE_TEST
	i2c: imx: allow COMPILE_TEST
	i2c: qup: allow COMPILE_TEST
	net: usb: cdc_mbim: avoid altsetting toggling for Telit FN990
	block-map: add __GFP_ZERO flag for alloc_page in function bio_copy_kern
	usb: gadget: don't release an existing dev->buf
	usb: gadget: clear related members when goto fail
	exfat: reuse exfat_inode_info variable instead of calling EXFAT_I()
	exfat: fix i_blocks for files truncated over 4 GiB
	tracing: Add test for user space strings when filtering on string pointers
	arm64: Mark start_backtrace() notrace and NOKPROBE_SYMBOL
	serial: stm32: prevent TDR register overwrite when sending x_char
	ext4: drop ineligible txn start stop APIs
	ext4: simplify updating of fast commit stats
	ext4: fast commit may not fallback for ineligible commit
	ext4: fast commit may miss file actions
	sched/fair: Fix fault in reweight_entity
	ata: pata_hpt37x: fix PCI clock detection
	drm/amdgpu: check vm ready by amdgpu_vm->evicting flag
	tracing: Add ustring operation to filtering string pointers
	ipv6: fix skb drops in igmp6_event_query() and igmp6_event_report()
	NFSD: Have legacy NFSD WRITE decoders use xdr_stream_subsegment()
	NFSD: Fix zero-length NFSv3 WRITEs
	io_uring: fix no lock protection for ctx->cq_extra
	tools/resolve_btf_ids: Close ELF file on error
	mtd: spi-nor: Fix mtd size for s3an flashes
	MIPS: fix local_{add,sub}_return on MIPS64
	signal: In get_signal test for signal_group_exit every time through the loop
	PCI: mediatek-gen3: Disable DVFSRC voltage request
	PCI: rcar: Check if device is runtime suspended instead of __clk_is_enabled()
	PCI: dwc: Do not remap invalid res
	PCI: aardvark: Fix checking for MEM resource type
	KVM: VMX: Don't unblock vCPU w/ Posted IRQ if IRQs are disabled in guest
	KVM: s390: Ensure kvm_arch_no_poll() is read once when blocking vCPU
	KVM: VMX: Read Posted Interrupt "control" exactly once per loop iteration
	KVM: X86: Ensure that dirty PDPTRs are loaded
	KVM: x86: Handle 32-bit wrap of EIP for EMULTYPE_SKIP with flat code seg
	KVM: x86: Exit to userspace if emulation prepared a completion callback
	i3c: fix incorrect address slot lookup on 64-bit
	i3c/master/mipi-i3c-hci: Fix a potentially infinite loop in 'hci_dat_v1_get_index()'
	tracing: Do not let synth_events block other dyn_event systems during create
	Input: ti_am335x_tsc - set ADCREFM for X configuration
	Input: ti_am335x_tsc - fix STEPCONFIG setup for Z2
	PCI: mvebu: Check for errors from pci_bridge_emul_init() call
	PCI: mvebu: Do not modify PCI IO type bits in conf_write
	PCI: mvebu: Fix support for bus mastering and PCI_COMMAND on emulated bridge
	PCI: mvebu: Fix configuring secondary bus of PCIe Root Port via emulated bridge
	PCI: mvebu: Setup PCIe controller to Root Complex mode
	PCI: mvebu: Fix support for PCI_BRIDGE_CTL_BUS_RESET on emulated bridge
	PCI: mvebu: Fix support for PCI_EXP_DEVCTL on emulated bridge
	PCI: mvebu: Fix support for PCI_EXP_RTSTA on emulated bridge
	PCI: mvebu: Fix support for DEVCAP2, DEVCTL2 and LNKCTL2 registers on emulated bridge
	NFSD: Fix verifier returned in stable WRITEs
	Revert "nfsd: skip some unnecessary stats in the v4 case"
	nfsd: fix crash on COPY_NOTIFY with special stateid
	x86/hyperv: Properly deal with empty cpumasks in hyperv_flush_tlb_multi()
	drm/i915: don't call free_mmap_offset when purging
	SUNRPC: Fix sockaddr handling in the svc_xprt_create_error trace point
	SUNRPC: Fix sockaddr handling in svcsock_accept_class trace points
	drm/sun4i: dw-hdmi: Fix missing put_device() call in sun8i_hdmi_phy_get
	drm/atomic: Check new_crtc_state->active to determine if CRTC needs disable in self refresh mode
	ntb_hw_switchtec: Fix pff ioread to read into mmio_part_cfg_all
	ntb_hw_switchtec: Fix bug with more than 32 partitions
	drm/amdkfd: Check for null pointer after calling kmemdup
	drm/amdgpu: use spin_lock_irqsave to avoid deadlock by local interrupt
	i3c: master: dw: check return of dw_i3c_master_get_free_pos()
	dma-buf: cma_heap: Fix mutex locking section
	tracing/uprobes: Check the return value of kstrdup() for tu->filename
	tracing/probes: check the return value of kstrndup() for pbuf
	mm: defer kmemleak object creation of module_alloc()
	kasan: fix quarantine conflicting with init_on_free
	selftests/vm: make charge_reserved_hugetlb.sh work with existing cgroup setting
	hugetlbfs: fix off-by-one error in hugetlb_vmdelete_list()
	drm/amdgpu/display: Only set vblank_disable_immediate when PSR is not enabled
	drm/amdgpu: filter out radeon PCI device IDs
	drm/amdgpu: filter out radeon secondary ids as well
	drm/amd/display: Use adjusted DCN301 watermarks
	drm/amd/display: move FPU associated DSC code to DML folder
	ethtool: Fix link extended state for big endian
	octeontx2-af: Optimize KPU1 processing for variable-length headers
	octeontx2-af: Reset PTP config in FLR handler
	octeontx2-af: cn10k: RPM hardware timestamp configuration
	octeontx2-af: cn10k: Use appropriate register for LMAC enable
	octeontx2-af: Adjust LA pointer for cpt parse header
	octeontx2-af: Add KPU changes to parse NGIO as separate layer
	net/mlx5e: IPsec: Refactor checksum code in tx data path
	net/mlx5e: IPsec: Fix crypto offload for non TCP/UDP encapsulated traffic
	bpf: Use u64_stats_t in struct bpf_prog_stats
	bpf: Fix possible race in inc_misses_counter
	drm/amd/display: Update watermark values for DCN301
	drm: mxsfb: Set fallback bus format when the bridge doesn't provide one
	drm: mxsfb: Fix NULL pointer dereference
	riscv/mm: Add XIP_FIXUP for phys_ram_base
	drm/i915/display: split out dpt out of intel_display.c
	drm/i915/display: Move DRRS code its own file
	drm/i915: Disable DRRS on IVB/HSW port != A
	gve: Recording rx queue before sending to napi
	net: dsa: ocelot: seville: utilize of_mdiobus_register
	net: dsa: seville: register the mdiobus under devres
	ibmvnic: don't release napi in __ibmvnic_open()
	of: net: move of_net under net/
	net: ethernet: litex: Add the dependency on HAS_IOMEM
	drm/mediatek: mtk_dsi: Reset the dsi0 hardware
	cifs: protect session channel fields with chan_lock
	cifs: fix confusing unneeded warning message on smb2.1 and earlier
	drm/amd/display: Fix stream->link_enc unassigned during stream removal
	bnxt_en: Fix occasional ethtool -t loopback test failures
	drm/amd/display: For vblank_disable_immediate, check PSR is really used
	PCI: mvebu: Fix device enumeration regression
	net: of: fix stub of_net helpers for CONFIG_NET=n
	ALSA: intel_hdmi: Fix reference to PCM buffer address
	ucounts: Fix systemd LimitNPROC with private users regression
	riscv/efi_stub: Fix get_boot_hartid_from_fdt() return value
	riscv: Fix config KASAN && SPARSEMEM && !SPARSE_VMEMMAP
	riscv: Fix config KASAN && DEBUG_VIRTUAL
	iwlwifi: mvm: check debugfs_dir ptr before use
	ASoC: ops: Shift tested values in snd_soc_put_volsw() by +min
	iommu/vt-d: Fix double list_add when enabling VMD in scalable mode
	iommu/amd: Recover from event log overflow
	drm/i915: s/JSP2/ICP2/ PCH
	drm/amd/display: Reduce dmesg error to a debug print
	xen/netfront: destroy queues before real_num_tx_queues is zeroed
	thermal: core: Fix TZ_GET_TRIP NULL pointer dereference
	mac80211: fix EAPoL rekey fail in 802.3 rx path
	blktrace: fix use after free for struct blk_trace
	ntb: intel: fix port config status offset for SPR
	mm: Consider __GFP_NOWARN flag for oversized kvmalloc() calls
	xfrm: fix MTU regression
	netfilter: fix use-after-free in __nf_register_net_hook()
	bpf, sockmap: Do not ignore orig_len parameter
	xfrm: fix the if_id check in changelink
	xfrm: enforce validity of offload input flags
	e1000e: Correct NVM checksum verification flow
	net: fix up skbs delta_truesize in UDP GRO frag_list
	netfilter: nf_queue: don't assume sk is full socket
	netfilter: nf_queue: fix possible use-after-free
	netfilter: nf_queue: handle socket prefetch
	batman-adv: Request iflink once in batadv-on-batadv check
	batman-adv: Request iflink once in batadv_get_real_netdevice
	batman-adv: Don't expect inter-netns unique iflink indices
	net: ipv6: ensure we call ipv6_mc_down() at most once
	net: dcb: flush lingering app table entries for unregistered devices
	net: ipa: add an interconnect dependency
	net/smc: fix connection leak
	net/smc: fix unexpected SMC_CLC_DECL_ERR_REGRMB error generated by client
	net/smc: fix unexpected SMC_CLC_DECL_ERR_REGRMB error cause by server
	btrfs: fix ENOSPC failure when attempting direct IO write into NOCOW range
	mac80211: fix forwarded mesh frames AC & queue selection
	net: stmmac: fix return value of __setup handler
	mac80211: treat some SAE auth steps as final
	iavf: Fix missing check for running netdev
	net: sxgbe: fix return value of __setup handler
	ibmvnic: register netdev after init of adapter
	net: arcnet: com20020: Fix null-ptr-deref in com20020pci_probe()
	ixgbe: xsk: change !netif_carrier_ok() handling in ixgbe_xmit_zc()
	iavf: Fix deadlock in iavf_reset_task
	efivars: Respect "block" flag in efivar_entry_set_safe()
	auxdisplay: lcd2s: Fix lcd2s_redefine_char() feature
	firmware: arm_scmi: Remove space in MODULE_ALIAS name
	ASoC: cs4265: Fix the duplicated control name
	auxdisplay: lcd2s: Fix memory leak in ->remove()
	auxdisplay: lcd2s: Use proper API to free the instance of charlcd object
	can: gs_usb: change active_channels's type from atomic_t to u8
	iommu/tegra-smmu: Fix missing put_device() call in tegra_smmu_find
	arm64: dts: rockchip: Switch RK3399-Gru DP to SPDIF output
	igc: igc_read_phy_reg_gpy: drop premature return
	ARM: Fix kgdb breakpoint for Thumb2
	mips: setup: fix setnocoherentio() boolean setting
	ARM: 9182/1: mmu: fix returns from early_param() and __setup() functions
	mptcp: Correctly set DATA_FIN timeout when number of retransmits is large
	selftests: mlxsw: tc_police_scale: Make test more robust
	pinctrl: sunxi: Use unique lockdep classes for IRQs
	igc: igc_write_phy_reg_gpy: drop premature return
	ibmvnic: free reset-work-item when flushing
	memfd: fix F_SEAL_WRITE after shmem huge page allocated
	s390/extable: fix exception table sorting
	sched: Fix yet more sched_fork() races
	arm64: dts: juno: Remove GICv2m dma-range
	iommu/amd: Fix I/O page table memory leak
	MIPS: ralink: mt7621: do memory detection on KSEG1
	ARM: dts: switch timer config to common devkit8000 devicetree
	ARM: dts: Use 32KiHz oscillator on devkit8000
	soc: fsl: guts: Revert commit 3c0d64e867
	soc: fsl: guts: Add a missing memory allocation failure check
	soc: fsl: qe: Check of ioremap return value
	netfilter: nf_tables: prefer kfree_rcu(ptr, rcu) variant
	ARM: tegra: Move panels to AUX bus
	can: etas_es58x: change opened_channel_cnt's type from atomic_t to u8
	net: stmmac: enhance XDP ZC driver level switching performance
	net: stmmac: only enable DMA interrupts when ready
	ibmvnic: initialize rc before completing wait
	ibmvnic: define flush_reset_queue helper
	ibmvnic: complete init_done on transport events
	net: chelsio: cxgb3: check the return value of pci_find_capability()
	net: sparx5: Fix add vlan when invalid operation
	iavf: Refactor iavf state machine tracking
	iavf: Add __IAVF_INIT_FAILED state
	iavf: Combine init and watchdog state machines
	iavf: Add trace while removing device
	iavf: Rework mutexes for better synchronisation
	iavf: Add helper function to go from pci_dev to adapter
	iavf: Fix kernel BUG in free_msi_irqs
	iavf: Add waiting so the port is initialized in remove
	iavf: Fix init state closure on remove
	iavf: Fix locking for VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS
	iavf: Fix race in init state
	iavf: Fix __IAVF_RESETTING state usage
	drm/i915/guc/slpc: Correct the param count for unset param
	drm/bridge: ti-sn65dsi86: Properly undo autosuspend
	e1000e: Fix possible HW unit hang after an s0ix exit
	MIPS: ralink: mt7621: use bitwise NOT instead of logical
	nl80211: Handle nla_memdup failures in handle_nan_filter
	drm/amdgpu: fix suspend/resume hang regression
	net: dcb: disable softirqs in dcbnl_flush_dev()
	selftests: mlxsw: resource_scale: Fix return value
	net: stmmac: perserve TX and RX coalesce value during XDP setup
	iavf: do not override the adapter state in the watchdog task (again)
	iavf: missing unlocks in iavf_watchdog_task()
	MAINTAINERS: adjust file entry for of_net.c after movement
	Input: elan_i2c - move regulator_[en|dis]able() out of elan_[en|dis]able_power()
	Input: elan_i2c - fix regulator enable count imbalance after suspend/resume
	Input: samsung-keypad - properly state IOMEM dependency
	HID: add mapping for KEY_DICTATE
	HID: add mapping for KEY_ALL_APPLICATIONS
	tracing/histogram: Fix sorting on old "cpu" value
	tracing: Fix return value of __setup handlers
	btrfs: fix lost prealloc extents beyond eof after full fsync
	btrfs: fix relocation crash due to premature return from btrfs_commit_transaction()
	btrfs: do not WARN_ON() if we have PageError set
	btrfs: qgroup: fix deadlock between rescan worker and remove qgroup
	btrfs: add missing run of delayed items after unlink during log replay
	btrfs: do not start relocation until in progress drops are done
	Revert "xfrm: xfrm_state_mtu should return at least 1280 for ipv6"
	proc: fix documentation and description of pagemap
	KVM: x86/mmu: Passing up the error state of mmu_alloc_shadow_roots()
	hamradio: fix macro redefine warning
	Linux 5.15.27

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ie338dd23e0eb61feb540b4256b5d1840fee4db84
2022-03-17 14:02:09 +01:00
Peter Zijlstra
3411613611 sched: Fix yet more sched_fork() races
commit b1e8206582f9d680cff7d04828708c8b6ab32957 upstream.

Where commit 4ef0c5c6b5ba ("kernel/sched: Fix sched_fork() access an
invalid sched_task_group") fixed a fork race vs cgroup, it opened up a
race vs syscalls by not placing the task on the runqueue before it
gets exposed through the pidhash.

Commit 13765de8148f ("sched/fair: Fix fault in reweight_entity") is
trying to fix a single instance of this, instead fix the whole class
of issues, effectively reverting this commit.

Fixes: 4ef0c5c6b5ba ("kernel/sched: Fix sched_fork() access an invalid sched_task_group")
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Tested-by: Zhang Qiao <zhangqiao22@huawei.com>
Tested-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Link: https://lkml.kernel.org/r/YgoeCbwj5mbCR0qA@hirez.programming.kicks-ass.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-03-08 19:12:49 +01:00
Tadeusz Struk
e0bcd6b577 sched/fair: Fix fault in reweight_entity
[ Upstream commit 13765de8148f71fa795e0a6607de37c49ea5915a ]

Syzbot found a GPF in reweight_entity. This has been bisected to
commit 4ef0c5c6b5ba ("kernel/sched: Fix sched_fork() access an invalid
sched_task_group")

There is a race between sched_post_fork() and setpriority(PRIO_PGRP)
within a thread group that causes a null-ptr-deref in
reweight_entity() in CFS. The scenario is that the main process spawns
number of new threads, which then call setpriority(PRIO_PGRP, 0, -20),
wait, and exit.  For each of the new threads the copy_process() gets
invoked, which adds the new task_struct and calls sched_post_fork()
for it.

In the above scenario there is a possibility that
setpriority(PRIO_PGRP) and set_one_prio() will be called for a thread
in the group that is just being created by copy_process(), and for
which the sched_post_fork() has not been executed yet. This will
trigger a null pointer dereference in reweight_entity(), as it will
try to access the run queue pointer, which hasn't been set.

Before the mentioned change the cfs_rq pointer for the task  has been
set in sched_fork(), which is called much earlier in copy_process(),
before the new task is added to the thread_group.  Now it is done in
the sched_post_fork(), which is called after that.  To fix the issue
the remove the update_load param from the update_load param() function
and call reweight_task() only if the task flag doesn't have the
TASK_NEW flag set.

Fixes: 4ef0c5c6b5ba ("kernel/sched: Fix sched_fork() access an invalid sched_task_group")
Reported-by: syzbot+af7a719bc92395ee41b3@syzkaller.appspotmail.com
Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20220203161846.1160750-1-tadeusz.struk@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-03-08 19:12:32 +01:00
Stephen Dickey
4345c3db84 ANDROID: sched: update is_cpu_allowed tracehook
Currently, the trace hook for is_cpu_allowed only executes if the
cpu is not a kthread. Modules need to be able to reject cpus
regardless of whether the task is a kthread or not. Modules also
need to have the flexibility to execute, or not, the remainder of
is_cpu_allowed.

Move the tracepoint for is_cpu_allowed so that it is invoked
regardless of task's kthread status, but do not interfere with
per-cpu-kthread cpu assignment.

Bug: 222550772
Change-Id: Ide48a82a33129448bb22be28814267b0b76535a2
Signed-off-by: Stephen Dickey <quic_dickey@quicinc.com>
2022-03-04 03:49:45 +00:00
Peter Zijlstra
42da9cb956 UPSTREAM: sched: Fix yet more sched_fork() races
Where commit 4ef0c5c6b5ba ("kernel/sched: Fix sched_fork() access an
invalid sched_task_group") fixed a fork race vs cgroup, it opened up a
race vs syscalls by not placing the task on the runqueue before it
gets exposed through the pidhash.

Commit 13765de8148f ("sched/fair: Fix fault in reweight_entity") is
trying to fix a single instance of this, instead fix the whole class
of issues, effectively reverting this commit.

Change-Id: I4d34311eac28b23ee32e9308a21c66afe8fa8a3b
Fixes: 4ef0c5c6b5ba ("kernel/sched: Fix sched_fork() access an invalid sched_task_group")
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Tested-by: Zhang Qiao <zhangqiao22@huawei.com>
Tested-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Link: https://lkml.kernel.org/r/YgoeCbwj5mbCR0qA@hirez.programming.kicks-ass.net
BUG: 221850698
(cherry picked from commit b1e8206582f9d680cff7d04828708c8b6ab32957)
Signed-off-by: Ashay Jaiswal <quic_ashayj@quicinc.com>
2022-03-01 21:35:25 +00:00
Tadeusz Struk
8ab19855fc UPSTREAM: sched/fair: Fix fault in reweight_entity
Syzbot found a GPF in reweight_entity. This has been bisected to
commit 4ef0c5c6b5ba ("kernel/sched: Fix sched_fork() access an invalid
sched_task_group")

There is a race between sched_post_fork() and setpriority(PRIO_PGRP)
within a thread group that causes a null-ptr-deref in
reweight_entity() in CFS. The scenario is that the main process spawns
number of new threads, which then call setpriority(PRIO_PGRP, 0, -20),
wait, and exit.  For each of the new threads the copy_process() gets
invoked, which adds the new task_struct and calls sched_post_fork()
for it.

In the above scenario there is a possibility that
setpriority(PRIO_PGRP) and set_one_prio() will be called for a thread
in the group that is just being created by copy_process(), and for
which the sched_post_fork() has not been executed yet. This will
trigger a null pointer dereference in reweight_entity(), as it will
try to access the run queue pointer, which hasn't been set.

Before the mentioned change the cfs_rq pointer for the task  has been
set in sched_fork(), which is called much earlier in copy_process(),
before the new task is added to the thread_group.  Now it is done in
the sched_post_fork(), which is called after that.  To fix the issue
the remove the update_load param from the update_load param() function
and call reweight_task() only if the task flag doesn't have the
TASK_NEW flag set.

Change-Id: I22d5b9d0b06cd85f0f02446b1e8a2389935cffa8
Fixes: 4ef0c5c6b5ba ("kernel/sched: Fix sched_fork() access an invalid sched_task_group")
Reported-by: syzbot+af7a719bc92395ee41b3@syzkaller.appspotmail.com
Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20220203161846.1160750-1-tadeusz.struk@linaro.org
BUG: 221850698
(cherry picked from commit 13765de8148f71fa795e0a6607de37c49ea5915a)
Signed-off-by: Ashay Jaiswal <quic_ashayj@quicinc.com>
2022-03-01 21:35:17 +00:00
Greg Kroah-Hartman
287cd0232c Merge 5.15.24 into android13-5.15
Changes in 5.15.24
	integrity: check the return value of audit_log_start()
	ima: fix reference leak in asymmetric_verify()
	ima: Remove ima_policy file before directory
	ima: Allow template selection with ima_template[_fmt]= after ima_hash=
	ima: Do not print policy rule with inactive LSM labels
	mmc: sdhci-of-esdhc: Check for error num after setting mask
	mmc: core: Wait for command setting 'Power Off Notification' bit to complete
	can: isotp: fix potential CAN frame reception race in isotp_rcv()
	can: isotp: fix error path in isotp_sendmsg() to unlock wait queue
	net: phy: marvell: Fix RGMII Tx/Rx delays setting in 88e1121-compatible PHYs
	net: phy: marvell: Fix MDI-x polarity setting in 88e1118-compatible PHYs
	NFS: Fix initialisation of nfs_client cl_flags field
	NFSD: Fix NFSv3 SETATTR/CREATE's handling of large file sizes
	NFSD: Fix ia_size underflow
	NFSD: Clamp WRITE offsets
	NFSD: Fix offset type in I/O trace points
	NFSD: Fix the behavior of READ near OFFSET_MAX
	thermal/drivers/int340x: Improve the tcc offset saving for suspend/resume
	thermal/drivers/int340x: processor_thermal: Suppot 64 bit RFIM responses
	thermal: int340x: Limit Kconfig to 64-bit
	thermal/drivers/int340x: Fix RFIM mailbox write commands
	tracing: Propagate is_signed to expression
	NFS: change nfs_access_get_cached to only report the mask
	NFSv4 only print the label when its queried
	nfs: nfs4clinet: check the return value of kstrdup()
	NFSv4.1: Fix uninitialised variable in devicenotify
	NFSv4 remove zero number of fs_locations entries error check
	NFSv4 store server support for fs_location attribute
	NFSv4.1 query for fs_location attr on a new file system
	NFSv4 expose nfs_parse_server_name function
	NFSv4 handle port presence in fs_location server string
	SUNRPC allow for unspecified transport time in rpc_clnt_add_xprt
	net/sunrpc: fix reference count leaks in rpc_sysfs_xprt_state_change
	sunrpc: Fix potential race conditions in rpc_sysfs_xprt_state_change()
	irqchip/realtek-rtl: Service all pending interrupts
	perf/x86/rapl: fix AMD event handling
	x86/perf: Avoid warning for Arch LBR without XSAVE
	sched: Avoid double preemption in __cond_resched_*lock*()
	drm/vc4: Fix deadlock on DSI device attach error
	drm: panel-orientation-quirks: Add quirk for the 1Netbook OneXPlayer
	net: sched: Clarify error message when qdisc kind is unknown
	powerpc/fixmap: Fix VM debug warning on unmap
	scsi: target: iscsi: Make sure the np under each tpg is unique
	scsi: ufs: ufshcd-pltfrm: Check the return value of devm_kstrdup()
	scsi: qedf: Add stag_work to all the vports
	scsi: qedf: Fix refcount issue when LOGO is received during TMF
	scsi: qedf: Change context reset messages to ratelimited
	scsi: pm8001: Fix bogus FW crash for maxcpus=1
	scsi: ufs: Use generic error code in ufshcd_set_dev_pwr_mode()
	scsi: ufs: Treat link loss as fatal error
	scsi: myrs: Fix crash in error case
	net: stmmac: reduce unnecessary wakeups from eee sw timer
	PM: hibernate: Remove register_nosave_region_late()
	drm/amd/display: Correct MPC split policy for DCN301
	usb: dwc2: gadget: don't try to disable ep0 in dwc2_hsotg_suspend
	perf: Always wake the parent event
	nvme-pci: add the IGNORE_DEV_SUBNQN quirk for Intel P4500/P4600 SSDs
	MIPS: Fix build error due to PTR used in more places
	net: stmmac: dwmac-sun8i: use return val of readl_poll_timeout()
	KVM: eventfd: Fix false positive RCU usage warning
	KVM: nVMX: eVMCS: Filter out VM_EXIT_SAVE_VMX_PREEMPTION_TIMER
	KVM: nVMX: Also filter MSR_IA32_VMX_TRUE_PINBASED_CTLS when eVMCS
	KVM: SVM: Don't kill SEV guest if SMAP erratum triggers in usermode
	KVM: VMX: Set vmcs.PENDING_DBG.BS on #DB in STI/MOVSS blocking shadow
	KVM: x86: Report deprecated x87 features in supported CPUID
	riscv: fix build with binutils 2.38
	riscv: cpu-hotplug: clear cpu from numa map when teardown
	riscv: eliminate unreliable __builtin_frame_address(1)
	gfs2: Fix gfs2_release for non-writers regression
	ARM: dts: imx23-evk: Remove MX23_PAD_SSP1_DETECT from hog group
	ARM: dts: Fix boot regression on Skomer
	ARM: socfpga: fix missing RESET_CONTROLLER
	nvme-tcp: fix bogus request completion when failing to send AER
	ACPI/IORT: Check node revision for PMCG resources
	PM: s2idle: ACPI: Fix wakeup interrupts handling
	drm/amdgpu/display: change pipe policy for DCN 2.0
	drm/rockchip: vop: Correct RK3399 VOP register fields
	drm/i915: Allow !join_mbus cases for adlp+ dbuf configuration
	drm/i915: Populate pipe dbuf slices more accurately during readout
	ARM: dts: Fix timer regression for beagleboard revision c
	ARM: dts: meson: Fix the UART compatible strings
	ARM: dts: meson8: Fix the UART device-tree schema validation
	ARM: dts: meson8b: Fix the UART device-tree schema validation
	phy: broadcom: Kconfig: Fix PHY_BRCM_USB config option
	staging: fbtft: Fix error path in fbtft_driver_module_init()
	ARM: dts: imx6qdl-udoo: Properly describe the SD card detect
	phy: xilinx: zynqmp: Fix bus width setting for SGMII
	phy: stm32: fix a refcount leak in stm32_usbphyc_pll_enable()
	ARM: dts: imx7ulp: Fix 'assigned-clocks-parents' typo
	arm64: dts: imx8mq: fix mipi_csi bidirectional port numbers
	usb: f_fs: Fix use-after-free for epfile
	phy: dphy: Correct clk_pre parameter
	gpio: aggregator: Fix calling into sleeping GPIO controllers
	NFS: Don't overfill uncached readdir pages
	NFS: Don't skip directory entries when doing uncached readdir
	drm/vc4: hdmi: Allow DBLCLK modes even if horz timing is odd.
	misc: fastrpc: avoid double fput() on failed usercopy
	net: sparx5: Fix get_stat64 crash in tcpdump
	netfilter: ctnetlink: disable helper autoassign
	arm64: dts: meson-g12b-odroid-n2: fix typo 'dio2133'
	arm64: dts: meson-sm1-odroid: use correct enable-gpio pin for tf-io regulator
	arm64: dts: meson-sm1-bananapi-m5: fix wrong GPIO domain for GPIOE_2
	arm64: dts: meson-sm1-odroid: fix boot loop after reboot
	ixgbevf: Require large buffers for build_skb on 82599VF
	drm/panel: simple: Assign data from panel_dpi_probe() correctly
	ACPI: PM: s2idle: Cancel wakeup before dispatching EC GPE
	gpiolib: Never return internal error codes to user space
	gpio: sifive: use the correct register to read output values
	fbcon: Avoid 'cap' set but not used warning
	bonding: pair enable_port with slave_arr_updates
	net: dsa: mv88e6xxx: don't use devres for mdiobus
	net: dsa: ar9331: register the mdiobus under devres
	net: dsa: bcm_sf2: don't use devres for mdiobus
	net: dsa: felix: don't use devres for mdiobus
	net: dsa: mt7530: fix kernel bug in mdiobus_free() when unbinding
	net: dsa: lantiq_gswip: don't use devres for mdiobus
	ipmr,ip6mr: acquire RTNL before calling ip[6]mr_free_table() on failure path
	nfp: flower: fix ida_idx not being released
	net: do not keep the dst cache when uncloning an skb dst and its metadata
	net: fix a memleak when uncloning an skb dst and its metadata
	veth: fix races around rq->rx_notify_masked
	net: mdio: aspeed: Add missing MODULE_DEVICE_TABLE
	tipc: rate limit warning for received illegal binding update
	net: amd-xgbe: disable interrupts during pci removal
	drm/amd/pm: fix hwmon node of power1_label create issue
	mptcp: netlink: process IPv6 addrs in creating listening sockets
	dpaa2-eth: unregister the netdev before disconnecting from the PHY
	ice: fix an error code in ice_cfg_phy_fec()
	ice: fix IPIP and SIT TSO offload
	ice: Fix KASAN error in LAG NETDEV_UNREGISTER handler
	ice: Avoid RTNL lock when re-creating auxiliary device
	net: mscc: ocelot: fix mutex lock error during ethtool stats read
	net: dsa: mv88e6xxx: fix use-after-free in mv88e6xxx_mdios_unregister
	vt_ioctl: fix array_index_nospec in vt_setactivate
	vt_ioctl: add array_index_nospec to VT_ACTIVATE
	n_tty: wake up poll(POLLRDNORM) on receiving data
	eeprom: ee1004: limit i2c reads to I2C_SMBUS_BLOCK_MAX
	usb: dwc2: drd: fix soft connect when gadget is unconfigured
	Revert "usb: dwc2: drd: fix soft connect when gadget is unconfigured"
	net: usb: ax88179_178a: Fix out-of-bounds accesses in RX fixup
	usb: ulpi: Move of_node_put to ulpi_dev_release
	usb: ulpi: Call of_node_put correctly
	usb: dwc3: gadget: Prevent core from processing stale TRBs
	usb: gadget: udc: renesas_usb3: Fix host to USB_ROLE_NONE transition
	USB: gadget: validate interface OS descriptor requests
	usb: gadget: rndis: check size of RNDIS_MSG_SET command
	usb: gadget: f_uac2: Define specific wTerminalType
	usb: raw-gadget: fix handling of dual-direction-capable endpoints
	USB: serial: ftdi_sio: add support for Brainboxes US-159/235/320
	USB: serial: option: add ZTE MF286D modem
	USB: serial: ch341: add support for GW Instek USB2.0-Serial devices
	USB: serial: cp210x: add NCR Retail IO box id
	USB: serial: cp210x: add CPI Bulk Coin Recycler id
	speakup-dectlk: Restore pitch setting
	phy: ti: Fix missing sentinel for clk_div_table
	iio: buffer: Fix file related error handling in IIO_BUFFER_GET_FD_IOCTL
	mm: memcg: synchronize objcg lists with a dedicated spinlock
	seccomp: Invalidate seccomp mode to catch death failures
	signal: HANDLER_EXIT should clear SIGNAL_UNKILLABLE
	s390/cio: verify the driver availability for path_event call
	bus: mhi: pci_generic: Add mru_default for Foxconn SDX55
	bus: mhi: pci_generic: Add mru_default for Cinterion MV31-W
	hwmon: (dell-smm) Speed up setting of fan speed
	x86/sgx: Silence softlockup detection when releasing large enclaves
	Makefile.extrawarn: Move -Wunaligned-access to W=1
	scsi: lpfc: Remove NVMe support if kernel has NVME_FC disabled
	scsi: lpfc: Reduce log messages seen after firmware download
	MIPS: octeon: Fix missed PTR->PTR_WD conversion
	arm64: dts: imx8mq: fix lcdif port node
	perf: Fix list corruption in perf_cgroup_switch()
	iommu: Fix potential use-after-free during probe
	Linux 5.15.24

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ibe10e24eeda28e78c35f7656bc49cf11f58d858c
2022-02-16 14:14:18 +01:00
Peter Zijlstra
85008bde41 sched: Avoid double preemption in __cond_resched_*lock*()
[ Upstream commit 7e406d1ff39b8ee574036418a5043c86723170cf ]

For PREEMPT/DYNAMIC_PREEMPT the *_unlock() will already trigger a
preemption, no point in then calling preempt_schedule_common()
*again*.

Use _cond_resched() instead, since this is a NOP for the preemptible
configs while it provide a preemption point for the others.

Reported-by: xuhaifeng <xuhaifeng@oppo.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/YcGnvDEYBwOiV0cR@hirez.programming.kicks-ass.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-02-16 12:56:11 +01:00
Will Deacon
ccabb0e365 ANDROID: sched: Don't allow frozen asymmetric tasks to remain on the rq
If a task with a restricted possible CPU mask and PF_FROZEN or
PF_FREEZER_SKIP set blocks, then we must not put it back on the runqueue
to handle a signal because this could lead to migration failures later
on if the suspending CPU is not capable of running it.

Return such a task to the runqueue only if a fatal signal is pending,
and otherwise allow the task to block.

Bug: 202918514
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I04cc9e65751f2bffc556c4da9ef02fe386764324
2022-02-10 11:00:56 +00:00
Will Deacon
6ebb3c5057 FROMLIST: sched: Defer wakeup in ttwu() for unschedulable frozen tasks
Asymmetric systems may not offer the same level of userspace ISA support
across all CPUs, meaning that some applications cannot be executed by
some CPUs. As a concrete example, upcoming arm64 big.LITTLE designs do
not feature support for 32-bit applications on both clusters.

Although we take care to prevent explicit hot-unplug of all 32-bit
capable CPUs on such a system, this is required when suspending on some
SoCs where the firmware mandates that the suspend/resume operation is
handled by CPU 0, which may not be capable of running 32-bit tasks.

Consequently, there is a window on the resume path where no 32-bit
capable CPUs are available for scheduling and waking up a 32-bit task
will result in a scheduler BUG() due to failure of select_fallback_rq():

  | kernel BUG at kernel/sched/core.c:2858!
  | Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
  | ...
  | Call trace:
  |  select_fallback_rq+0x4b0/0x4e4
  |  try_to_wake_up.llvm.4388853297126348405+0x460/0x5b0
  |  default_wake_function+0x1c/0x30
  |  autoremove_wake_function+0x1c/0x60
  |  __wake_up_common.llvm.11763074518265335900+0x100/0x1b8
  |  __wake_up+0x78/0xc4
  |  ep_poll_callback+0x20c/0x3fc

Prevent wakeups of unschedulable frozen tasks in ttwu() and instead
defer the wakeup to __thaw_tasks(), which runs only once all the
secondary CPUs are back online.

Signed-off-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/linux-arch/20210525151432.16875-17-will@kernel.org/
Bug: 186372082
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I5a0531b48d537a79e1926289b5a87edcd7dd78ad
(cherry picked from commit 94155f60a54df82652117b58c124a529556db6be)
2022-02-10 09:29:57 +00:00
Rick Yiu
97d6c580df ANDROID: sched: Add trace for __setscheduler_uclamp
To know per-task uclamp request.

Bug: 191973176
Signed-off-by: Rick Yiu <rickyiu@google.com>
Change-Id: Ibd40391f2228db5daa410198339237879e67a078
Signed-off-by: Will McVicker <willmcvicker@google.com>
2022-02-08 11:33:22 -08:00
Rick Yiu
abf44714df ANDROID: sched: Add vendor hook for uclamp_eff_get
Vendor may have their own behavior for determing uclamp value. Also
uclamp_eff_get() is used in uclamp_rq_inc_id() when task is enqueued,
and it is contained in uclamp_eff_value(), there is no much benefit to
hook uclamp_eff_value(), so remove the hook in uclamp_eff_value().

Bug: 170507972
Bug: 180859906
Signed-off-by: Rick Yiu <rickyiu@google.com>
Change-Id: Ibf7c043188a77c40baf5b4040b198a4197236089
Signed-off-by: Will McVicker <willmcvicker@google.com>
2022-02-08 11:33:22 -08:00
Stephen Dickey
1050e6e021 ANDROID: sched: core: hook for get_nohz_timer_target
Allow module to control behavior of get_nohz_timer_target.

Bug: 205164003
Change-Id: I38cb201ebf06db7bbce0d6cb68dbbe3729355be8
Signed-off-by: Stephen Dickey <quic_dickey@quicinc.com>
2022-01-24 19:25:26 +00:00
Stephen Dickey
a243208877 ANDROID: kernel: sched: tracehook for is_cpu_allowed
To support the replacement of pause, is_cpu_allowed is the best
place to hook into the code to restrict CPUs for a module based
implementation. This restricts select_fallback_rq, select_task_rq,
and __migate_task, to ensure the cpu is allowed.

Include a hook in is_cpu_allowed to allow the module to control
which cpu is allowed during a migration event.

Bug: 205164003
Change-Id: I665e4d39318079bdb99bd248969ecb9eb528f9df
Signed-off-by: Stephen Dickey <quic_dickey@quicinc.com>
2022-01-24 19:25:13 +00:00
Park Bumgyu
9e280ea43e ANDROID: sched: export task_rq_lock
Declare task_rq_lock as EXPORT_SYMBOL_GPL needed by vendor module.

Bug: 178340230

Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>
Change-Id: I4afc2d67bd208b00e6c43590782196cb4ee07937
2022-01-10 17:11:44 +00:00
Tengfei Fan
46161882da ANDROID: sched: add hook point in do_sched_yield()
When a task yields, it relinquishes the cpu and
scheduler is tasked to find another task.
However our vendor scheduler logic implementation
could return the same task leading to a loop where
the yielded task gets to run back, so add hook point
in do_sched_yield() for vendor can do some work
before task is scheduled.

Bug: 205804537
Change-Id: I6528c3f4b0ee360559ef9c97cb1eb2b2d1357870
Signed-off-by: Tengfei Fan <quic_tengfan@quicinc.com>
Signed-off-by: Sai Harshini Nimmala <quic_snimmala@quicinc.com>
2021-12-14 15:21:59 +00:00
Greg Kroah-Hartman
e5f6d1dffb Merge 5.15.7 into android13-5.15
Changes in 5.15.7
	ALSA: usb-audio: Restrict rates for the shared clocks
	ALSA: usb-audio: Rename early_playback_start flag with lowlatency_playback
	ALSA: usb-audio: Disable low-latency playback for free-wheel mode
	ALSA: usb-audio: Disable low-latency mode for implicit feedback sync
	ALSA: usb-audio: Check available frames for the next packet size
	ALSA: usb-audio: Add spinlock to stop_urbs()
	ALSA: usb-audio: Improved lowlatency playback support
	ALSA: usb-audio: Avoid killing in-flight URBs during draining
	ALSA: usb-audio: Fix packet size calculation regression
	ALSA: usb-audio: Less restriction for low-latency playback mode
	ALSA: usb-audio: Switch back to non-latency mode at a later point
	ALSA: usb-audio: Don't start stream for capture at prepare
	gfs2: release iopen glock early in evict
	gfs2: Fix length of holes reported at end-of-file
	powerpc/pseries/ddw: Revert "Extend upper limit for huge DMA window for persistent memory"
	powerpc/pseries/ddw: Do not try direct mapping with persistent memory and one window
	drm/sun4i: fix unmet dependency on RESET_CONTROLLER for PHY_SUN6I_MIPI_DPHY
	mac80211: do not access the IV when it was stripped
	mac80211: fix throughput LED trigger
	x86/hyperv: Move required MSRs check to initial platform probing
	net/smc: Transfer remaining wait queue entries during fallback
	atlantic: Fix OOB read and write in hw_atl_utils_fw_rpc_wait
	net: return correct error code
	pinctrl: qcom: fix unmet dependencies on GPIOLIB for GPIOLIB_IRQCHIP
	platform/x86: dell-wmi-descriptor: disable by default
	platform/x86: thinkpad_acpi: Add support for dual fan control
	platform/x86: thinkpad_acpi: Fix WWAN device disabled issue after S3 deep
	s390/setup: avoid using memblock_enforce_memory_limit
	btrfs: silence lockdep when reading chunk tree during mount
	btrfs: check-integrity: fix a warning on write caching disabled disk
	thermal: core: Reset previous low and high trip during thermal zone init
	scsi: iscsi: Unblock session then wake up error handler
	net: usb: r8152: Add MAC passthrough support for more Lenovo Docks
	drm/amd/pm: Remove artificial freq level on Navi1x
	drm/amd/amdkfd: Fix kernel panic when reset failed and been triggered again
	drm/amd/amdgpu: fix potential memleak
	ata: ahci: Add Green Sardine vendor ID as board_ahci_mobile
	ata: libahci: Adjust behavior when StorageD3Enable _DSD is set
	ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()
	ipv6: check return value of ipv6_skip_exthdr
	net: tulip: de4x5: fix the problem that the array 'lp->phy[8]' may be out of bound
	net: ethernet: dec: tulip: de4x5: fix possible array overflows in type3_infoblock()
	perf sort: Fix the 'weight' sort key behavior
	perf sort: Fix the 'ins_lat' sort key behavior
	perf sort: Fix the 'p_stage_cyc' sort key behavior
	perf inject: Fix ARM SPE handling
	perf hist: Fix memory leak of a perf_hpp_fmt
	perf report: Fix memory leaks around perf_tip()
	tracing: Don't use out-of-sync va_list in event printing
	net/smc: Avoid warning of possible recursive locking
	ACPI: Add stubs for wakeup handler functions
	net/tls: Fix authentication failure in CCM mode
	vrf: Reset IPCB/IP6CB when processing outbound pkts in vrf dev xmit
	kprobes: Limit max data_size of the kretprobe instances
	ALSA: hda/cs8409: Set PMSG_ON earlier inside cs8409 driver
	rt2x00: do not mark device gone on EPROTO errors during start
	ipmi: Move remove_work to dedicated workqueue
	cpufreq: Fix get_cpu_device() failure in add_cpu_dev_symlink()
	iwlwifi: mvm: retry init flow if failed
	dma-buf: system_heap: Use 'for_each_sgtable_sg' in pages free flow
	s390/pci: move pseudo-MMIO to prevent MIO overlap
	fget: check that the fd still exists after getting a ref to it
	sata_fsl: fix UAF in sata_fsl_port_stop when rmmod sata_fsl
	sata_fsl: fix warning in remove_proc_entry when rmmod sata_fsl
	scsi: lpfc: Fix non-recovery of remote ports following an unsolicited LOGO
	scsi: ufs: ufs-pci: Add support for Intel ADL
	ipv6: fix memory leak in fib6_rule_suppress
	drm/amd/display: Allow DSC on supported MST branch devices
	drm/i915/dp: Perform 30ms delay after source OUI write
	KVM: fix avic_set_running for preemptable kernels
	KVM: Disallow user memslot with size that exceeds "unsigned long"
	KVM: x86/mmu: Fix TLB flush range when handling disconnected pt
	KVM: Ensure local memslot copies operate on up-to-date arch-specific data
	KVM: x86: ignore APICv if LAPIC is not enabled
	KVM: nVMX: Emulate guest TLB flush on nested VM-Enter with new vpid12
	KVM: nVMX: Flush current VPID (L1 vs. L2) for KVM_REQ_TLB_FLUSH_GUEST
	KVM: nVMX: Abide to KVM_REQ_TLB_FLUSH_GUEST request on nested vmentry/vmexit
	KVM: VMX: prepare sync_pir_to_irr for running with APICv disabled
	KVM: x86: Use a stable condition around all VT-d PI paths
	KVM: MMU: shadow nested paging does not have PKU
	KVM: arm64: Avoid setting the upper 32 bits of TCR_EL2 and CPTR_EL2 to 1
	KVM: X86: Use vcpu->arch.walk_mmu for kvm_mmu_invlpg()
	KVM: x86: check PIR even for vCPUs with disabled APICv
	tracing/histograms: String compares should not care about signed values
	net: dsa: mv88e6xxx: Fix application of erratum 4.8 for 88E6393X
	net: dsa: mv88e6xxx: Drop unnecessary check in mv88e6393x_serdes_erratum_4_6()
	net: dsa: mv88e6xxx: Save power by disabling SerDes trasmitter and receiver
	net: dsa: mv88e6xxx: Add fix for erratum 5.2 of 88E6393X family
	net: dsa: mv88e6xxx: Fix inband AN for 2500base-x on 88E6393X family
	net: dsa: mv88e6xxx: Link in pcs_get_state() if AN is bypassed
	wireguard: selftests: increase default dmesg log size
	wireguard: allowedips: add missing __rcu annotation to satisfy sparse
	wireguard: selftests: actually test for routing loops
	wireguard: selftests: rename DEBUG_PI_LIST to DEBUG_PLIST
	wireguard: device: reset peer src endpoint when netns exits
	wireguard: receive: use ring buffer for incoming handshakes
	wireguard: receive: drop handshakes if queue lock is contended
	wireguard: ratelimiter: use kvcalloc() instead of kvzalloc()
	i2c: stm32f7: flush TX FIFO upon transfer errors
	i2c: stm32f7: recover the bus on access timeout
	i2c: stm32f7: stop dma transfer in case of NACK
	i2c: cbus-gpio: set atomic transfer callback
	natsemi: xtensa: fix section mismatch warnings
	tcp: fix page frag corruption on page fault
	net: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_rings()
	net: mpls: Fix notifications when deleting a device
	siphash: use _unaligned version by default
	arm64: ftrace: add missing BTIs
	iwlwifi: fix warnings produced by kernel debug options
	net/mlx5e: IPsec: Fix Software parser inner l3 type setting in case of encapsulation
	net/mlx4_en: Fix an use-after-free bug in mlx4_en_try_alloc_resources()
	selftests: net: Correct case name
	net: dsa: b53: Add SPI ID table
	mt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode
	ASoC: tegra: Fix wrong value type in ADMAIF
	ASoC: tegra: Fix wrong value type in I2S
	ASoC: tegra: Fix wrong value type in DMIC
	ASoC: tegra: Fix wrong value type in DSPK
	ASoC: tegra: Fix kcontrol put callback in ADMAIF
	ASoC: tegra: Fix kcontrol put callback in I2S
	ASoC: tegra: Fix kcontrol put callback in DMIC
	ASoC: tegra: Fix kcontrol put callback in DSPK
	ASoC: tegra: Fix kcontrol put callback in AHUB
	rxrpc: Fix rxrpc_peer leak in rxrpc_look_up_bundle()
	rxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer()
	ALSA: intel-dsp-config: add quirk for CML devices based on ES8336 codec
	net: stmmac: Avoid DMA_CHAN_CONTROL write if no Split Header support
	net: usb: lan78xx: lan78xx_phy_init(): use PHY_POLL instead of "0" if no IRQ is available
	net: marvell: mvpp2: Fix the computation of shared CPUs
	dpaa2-eth: destroy workqueue at the end of remove function
	octeontx2-af: Fix a memleak bug in rvu_mbox_init()
	net: annotate data-races on txq->xmit_lock_owner
	ipv4: convert fib_num_tclassid_users to atomic_t
	net/smc: fix wrong list_del in smc_lgr_cleanup_early
	net/rds: correct socket tunable error in rds_tcp_tune()
	net/smc: Keep smc_close_final rc during active close
	drm/msm/a6xx: Allocate enough space for GMU registers
	drm/msm: Do hw_init() before capturing GPU state
	drm/vc4: kms: Wait for the commit before increasing our clock rate
	drm/vc4: kms: Fix return code check
	drm/vc4: kms: Add missing drm_crtc_commit_put
	drm/vc4: kms: Clear the HVS FIFO commit pointer once done
	drm/vc4: kms: Don't duplicate pending commit
	drm/vc4: kms: Fix previous HVS commit wait
	atlantic: Increase delay for fw transactions
	atlatnic: enable Nbase-t speeds with base-t
	atlantic: Fix to display FW bundle version instead of FW mac version.
	atlantic: Add missing DIDs and fix 115c.
	Remove Half duplex mode speed capabilities.
	atlantic: Fix statistics logic for production hardware
	atlantic: Remove warn trace message.
	KVM: x86/mmu: Skip tlb flush if it has been done in zap_gfn_range()
	KVM: x86/mmu: Pass parameter flush as false in kvm_tdp_mmu_zap_collapsible_sptes()
	drm/msm/devfreq: Fix OPP refcnt leak
	drm/msm: Fix mmap to include VM_IO and VM_DONTDUMP
	drm/msm: Fix wait_fence submitqueue leak
	drm/msm: Restore error return on invalid fence
	ASoC: rk817: Add module alias for rk817-codec
	iwlwifi: Fix memory leaks in error handling path
	KVM: X86: Fix when shadow_root_level=5 && guest root_level<4
	KVM: SEV: initialize regions_list of a mirror VM
	net/mlx5e: Fix missing IPsec statistics on uplink representor
	net/mlx5: Move MODIFY_RQT command to ignore list in internal error state
	net/mlx5: E-switch, Respect BW share of the new group
	net/mlx5: E-Switch, fix single FDB creation on BlueField
	net/mlx5: E-Switch, Check group pointer before reading bw_share value
	KVM: x86/pmu: Fix reserved bits for AMD PerfEvtSeln register
	KVM: VMX: Set failure code in prepare_vmcs02()
	mctp: Don't let RTM_DELROUTE delete local routes
	Revert "drm/i915: Implement Wa_1508744258"
	io-wq: don't retry task_work creation failure on fatal conditions
	x86/sev: Fix SEV-ES INS/OUTS instructions for word, dword, and qword
	x86/entry: Add a fence for kernel entry SWAPGS in paranoid_entry()
	x86/entry: Use the correct fence macro after swapgs in kernel CR3
	x86/xen: Add xenpv_restore_regs_and_return_to_usermode()
	preempt/dynamic: Fix setup_preempt_mode() return value
	sched/uclamp: Fix rq->uclamp_max not set on first enqueue
	KVM: SEV: Return appropriate error codes if SEV-ES scratch setup fails
	KVM: x86/mmu: Rename slot_handle_leaf to slot_handle_level_4k
	KVM: x86/mmu: Remove spurious TLB flushes in TDP MMU zap collapsible path
	net/mlx5e: Rename lro_timeout to packet_merge_timeout
	net/mlx5e: Rename TIR lro functions to TIR packet merge functions
	net/mlx5e: Sync TIR params updates against concurrent create/modify
	serial: 8250_bcm7271: UART errors after resuming from S2
	parisc: Fix KBUILD_IMAGE for self-extracting kernel
	parisc: Fix "make install" on newer debian releases
	parisc: Mark cr16 CPU clocksource unstable on all SMP machines
	vgacon: Propagate console boot parameters before calling `vc_resize'
	xhci: Fix commad ring abort, write all 64 bits to CRCR register.
	USB: NO_LPM quirk Lenovo Powered USB-C Travel Hub
	usb: typec: tcpm: Wait in SNK_DEBOUNCED until disconnect
	usb: cdns3: gadget: fix new urb never complete if ep cancel previous requests
	usb: cdnsp: Fix a NULL pointer dereference in cdnsp_endpoint_init()
	x86/tsc: Add a timer to make sure TSC_adjust is always checked
	x86/tsc: Disable clocksource watchdog for TSC on qualified platorms
	x86/64/mm: Map all kernel memory into trampoline_pgd
	tty: serial: msm_serial: Deactivate RX DMA for polling support
	serial: pl011: Add ACPI SBSA UART match id
	serial: tegra: Change lower tolerance baud rate limit for tegra20 and tegra30
	serial: core: fix transmit-buffer reset and memleak
	serial: 8250_pci: Fix ACCES entries in pci_serial_quirks array
	serial: 8250_pci: rewrite pericom_do_set_divisor()
	serial: 8250: Fix RTS modem control while in rs485 mode
	serial: liteuart: Fix NULL pointer dereference in ->remove()
	serial: liteuart: fix use-after-free and memleak on unbind
	serial: liteuart: fix minor-number leak on probe errors
	ipmi: msghandler: Make symbol 'remove_work_wq' static
	Linux 5.15.7

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I9300a10911f6205d2fb76f18255b017d34d68d1d
2021-12-08 13:46:21 +01:00
Qais Yousef
a246d92dda sched/uclamp: Fix rq->uclamp_max not set on first enqueue
[ Upstream commit 315c4f884800c45cb6bd8c90422fad554a8b9588 ]

Commit d81ae8aac8 ("sched/uclamp: Fix initialization of struct
uclamp_rq") introduced a bug where uclamp_max of the rq is not reset to
match the woken up task's uclamp_max when the rq is idle.

The code was relying on rq->uclamp_max initialized to zero, so on first
enqueue

	static inline void uclamp_rq_inc_id(struct rq *rq, struct task_struct *p,
					    enum uclamp_id clamp_id)
	{
		...

		if (uc_se->value > READ_ONCE(uc_rq->value))
			WRITE_ONCE(uc_rq->value, uc_se->value);
	}

was actually resetting it. But since commit d81ae8aac8 changed the
default to 1024, this no longer works. And since rq->uclamp_flags is
also initialized to 0, neither above code path nor uclamp_idle_reset()
update the rq->uclamp_max on first wake up from idle.

This is only visible from first wake up(s) until the first dequeue to
idle after enabling the static key. And it only matters if the
uclamp_max of this task is < 1024 since only then its uclamp_max will be
effectively ignored.

Fix it by properly initializing rq->uclamp_flags = UCLAMP_FLAG_IDLE to
ensure uclamp_idle_reset() is called which then will update the rq
uclamp_max value as expected.

Fixes: d81ae8aac8 ("sched/uclamp: Fix initialization of struct uclamp_rq")
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <Valentin.Schneider@arm.com>
Tested-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Link: https://lkml.kernel.org/r/20211202112033.1705279-1-qais.yousef@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-12-08 09:04:54 +01:00
Andrew Halaney
fcf7147760 preempt/dynamic: Fix setup_preempt_mode() return value
[ Upstream commit 9ed20bafc85806ca6c97c9128cec46c3ef80ae86 ]

__setup() callbacks expect 1 for success and 0 for failure. Correct the
usage here to reflect that.

Fixes: 826bfeb37b ("preempt/dynamic: Support dynamic preempt with preempt= boot option")
Reported-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Andrew Halaney <ahalaney@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20211203233203.133581-1-ahalaney@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-12-08 09:04:54 +01:00
Rick Yiu
7aa82e72a1 ANDROID: sched: Export available_idle_cpu
Previously idle_cpu is exported which is used by vendor module to check
if a cpu is in idle state, but later we think available_idle_cpu is
better than idle_cpu because it also checks vcpu_is_preempted.

Bug: 171740453
Change-Id: I17ccc4925650431f334a9eb2bbc94a138ab36ae0
Signed-off-by: Rick Yiu <rickyiu@google.com>
Signed-off-by: Will McVicker <willmcvicker@google.com>
Signed-off-by: Shaleen Agrawal <quic_shalagra@quicinc.com>
2021-12-06 15:14:21 -08:00
Quentin Perret
3efa38ae9b ANDROID: sched: Make uclamp changes depend on CAP_SYS_NICE
There is currently nothing preventing tasks from changing their per-task
clamp values in anyway that they like. The rationale is probably that
system administrators are still able to limit those clamps thanks to the
cgroup interface. However, this causes pain in a system where both
per-task and per-cgroup clamp values are expected to be under the
control of core system components (as is the case for Android).

To fix this, let's require CAP_SYS_NICE to change per-task clamp values.
There are ongoing discussions upstream about more flexible approaches
than this using the RLIMIT API -- see [1]. But the upstream discussion
has not converged yet, and this is way too late for UAPI changes in
android12-5.10 anyway, so let's apply this change which provides the
behaviour we want without actually impacting UAPIs.

[1] https://lore.kernel.org/lkml/20210623123441.592348-4-qperret@google.com/

Bug: 187186685
Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I749312a77306460318ac5374cf243d00b78120dd
2021-12-03 10:13:56 +00:00
Greg Kroah-Hartman
eb2f3d6b8d Merge 5.15.6 into android13-5.15
Changes in 5.15.6
	scsi: sd: Fix sd_do_mode_sense() buffer length handling
	ACPI: Get acpi_device's parent from the parent field
	ACPI: CPPC: Add NULL pointer check to cppc_get_perf()
	USB: serial: pl2303: fix GC type detection
	USB: serial: option: add Telit LE910S1 0x9200 composition
	USB: serial: option: add Fibocom FM101-GL variants
	usb: dwc2: gadget: Fix ISOC flow for elapsed frames
	usb: dwc2: hcd_queue: Fix use of floating point literal
	usb: dwc3: leave default DMA for PCI devices
	usb: dwc3: core: Revise GHWPARAMS9 offset
	usb: dwc3: gadget: Ignore NoStream after End Transfer
	usb: dwc3: gadget: Check for L1/L2/U3 for Start Transfer
	usb: dwc3: gadget: Fix null pointer exception
	net: usb: Correct PHY handling of smsc95xx
	net: nexthop: fix null pointer dereference when IPv6 is not enabled
	usb: chipidea: ci_hdrc_imx: fix potential error pointer dereference in probe
	usb: typec: fusb302: Fix masking of comparator and bc_lvl interrupts
	usb: xhci: tegra: Check padctrl interrupt presence in device tree
	usb: hub: Fix usb enumeration issue due to address0 race
	usb: hub: Fix locking issues with address0_mutex
	binder: fix test regression due to sender_euid change
	ALSA: ctxfi: Fix out-of-range access
	ALSA: hda/realtek: Add quirk for ASRock NUC Box 1100
	ALSA: hda/realtek: Fix LED on HP ProBook 435 G7
	media: cec: copy sequence field for the reply
	Revert "parisc: Fix backtrace to always include init funtion names"
	HID: wacom: Use "Confidence" flag to prevent reporting invalid contacts
	staging/fbtft: Fix backlight
	staging: greybus: Add missing rwsem around snd_ctl_remove() calls
	staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect()
	staging: r8188eu: Use kzalloc() with GFP_ATOMIC in atomic context
	staging: r8188eu: Fix breakage introduced when 5G code was removed
	staging: r8188eu: use GFP_ATOMIC under spinlock
	staging: r8188eu: fix a memory leak in rtw_wx_read32()
	fuse: release pipe buf after last use
	xen: don't continue xenstore initialization in case of errors
	xen: detect uninitialized xenbus in xenbus_init
	io_uring: correct link-list traversal locking
	io_uring: fail cancellation for EXITING tasks
	io_uring: fix link traversal locking
	drm/amdgpu: IH process reset count when restart
	drm/amdgpu/pm: fix powerplay OD interface
	drm/nouveau: recognise GA106
	ksmbd: downgrade addition info error msg to debug in smb2_get_info_sec()
	ksmbd: contain default data stream even if xattr is empty
	ksmbd: fix memleak in get_file_stream_info()
	KVM: PPC: Book3S HV: Prevent POWER7/8 TLB flush flushing SLB
	tracing/uprobe: Fix uprobe_perf_open probes iteration
	tracing: Fix pid filtering when triggers are attached
	mmc: sdhci-esdhc-imx: disable CMDQ support
	mmc: sdhci: Fix ADMA for PAGE_SIZE >= 64KiB
	mdio: aspeed: Fix "Link is Down" issue
	arm64: mm: Fix VM_BUG_ON(mm != &init_mm) for trans_pgd
	cpufreq: intel_pstate: Fix active mode offline/online EPP handling
	powerpc/32: Fix hardlockup on vmap stack overflow
	iomap: Fix inline extent handling in iomap_readpage
	NFSv42: Fix pagecache invalidation after COPY/CLONE
	PCI: aardvark: Deduplicate code in advk_pcie_rd_conf()
	PCI: aardvark: Implement re-issuing config requests on CRS response
	PCI: aardvark: Simplify initialization of rootcap on virtual bridge
	PCI: aardvark: Fix link training
	drm/amd/display: Fix OLED brightness control on eDP
	proc/vmcore: fix clearing user buffer by properly using clear_user()
	ASoC: SOF: Intel: hda: fix hotplug when only codec is suspended
	netfilter: ctnetlink: fix filtering with CTA_TUPLE_REPLY
	netfilter: ctnetlink: do not erase error code with EINVAL
	netfilter: ipvs: Fix reuse connection if RS weight is 0
	netfilter: flowtable: fix IPv6 tunnel addr match
	media: v4l2-core: fix VIDIOC_DQEVENT handling on non-x86
	firmware: arm_scmi: Fix null de-reference on error path
	ARM: dts: BCM5301X: Fix I2C controller interrupt
	ARM: dts: BCM5301X: Add interrupt properties to GPIO node
	ARM: dts: bcm2711: Fix PCIe interrupts
	ASoC: qdsp6: q6routing: Conditionally reset FrontEnd Mixer
	ASoC: qdsp6: q6asm: fix q6asm_dai_prepare error handling
	ASoC: topology: Add missing rwsem around snd_ctl_remove() calls
	ASoC: codecs: wcd938x: fix volatile register range
	ASoC: codecs: wcd934x: return error code correctly from hw_params
	ASoC: codecs: lpass-rx-macro: fix HPHR setting CLSH mask
	net: ieee802154: handle iftypes as u32
	firmware: arm_scmi: Fix base agent discover response
	firmware: arm_scmi: pm: Propagate return value to caller
	ASoC: stm32: i2s: fix 32 bits channel length without mclk
	NFSv42: Don't fail clone() unless the OP_CLONE operation failed
	ARM: socfpga: Fix crash with CONFIG_FORTIRY_SOURCE
	drm/nouveau/acr: fix a couple NULL vs IS_ERR() checks
	scsi: qla2xxx: edif: Fix off by one bug in qla_edif_app_getfcinfo()
	scsi: mpt3sas: Fix kernel panic during drive powercycle test
	scsi: mpt3sas: Fix system going into read-only mode
	scsi: mpt3sas: Fix incorrect system timestamp
	drm/vc4: fix error code in vc4_create_object()
	drm/aspeed: Fix vga_pw sysfs output
	net: marvell: prestera: fix brige port operation
	net: marvell: prestera: fix double free issue on err path
	HID: input: Fix parsing of HID_CP_CONSUMER_CONTROL fields
	HID: input: set usage type to key on keycode remap
	HID: magicmouse: prevent division by 0 on scroll
	iavf: Prevent changing static ITR values if adaptive moderation is on
	iavf: Fix refreshing iavf adapter stats on ethtool request
	iavf: Fix VLAN feature flags after VFR
	x86/pvh: add prototype for xen_pvh_init()
	xen/pvh: add missing prototype to header
	ALSA: intel-dsp-config: add quirk for JSL devices based on ES8336 codec
	mptcp: fix delack timer
	mptcp: use delegate action to schedule 3rd ack retrans
	af_unix: fix regression in read after shutdown
	firmware: smccc: Fix check for ARCH_SOC_ID not implemented
	ipv6: fix typos in __ip6_finish_output()
	nfp: checking parameter process for rx-usecs/tx-usecs is invalid
	net: stmmac: retain PTP clock time during SIOCSHWTSTAMP ioctls
	net: ipv6: add fib6_nh_release_dsts stub
	net: nexthop: release IPv6 per-cpu dsts when replacing a nexthop group
	ice: fix vsi->txq_map sizing
	ice: avoid bpf_prog refcount underflow
	scsi: core: sysfs: Fix setting device state to SDEV_RUNNING
	scsi: scsi_debug: Zero clear zones at reset write pointer
	erofs: fix deadlock when shrink erofs slab
	i2c: virtio: disable timeout handling
	net/smc: Ensure the active closing peer first closes clcsock
	mlxsw: spectrum: Protect driver from buggy firmware
	net: ipa: directly disable ipa-setup-ready interrupt
	net: ipa: separate disabling setup from modem stop
	net: ipa: kill ipa_cmd_pipeline_clear()
	net: marvell: mvpp2: increase MTU limit when XDP enabled
	cpufreq: intel_pstate: Add Ice Lake server to out-of-band IDs
	nvmet-tcp: fix incomplete data digest send
	drm/hyperv: Fix device removal on Gen1 VMs
	arm64: uaccess: avoid blocking within critical sections
	net/ncsi : Add payload to be 32-bit aligned to fix dropped packets
	PM: hibernate: use correct mode for swsusp_close()
	drm/amd/display: Fix DPIA outbox timeout after GPU reset
	drm/amd/display: Set plane update flags for all planes in reset
	tcp_cubic: fix spurious Hystart ACK train detections for not-cwnd-limited flows
	lan743x: fix deadlock in lan743x_phy_link_status_change()
	net: phylink: Force link down and retrigger resolve on interface change
	net: phylink: Force retrigger in case of latched link-fail indicator
	net/smc: Fix NULL pointer dereferencing in smc_vlan_by_tcpsk()
	net/smc: Fix loop in smc_listen
	nvmet: use IOCB_NOWAIT only if the filesystem supports it
	igb: fix netpoll exit with traffic
	MIPS: loongson64: fix FTLB configuration
	MIPS: use 3-level pgtable for 64KB page size on MIPS_VA_BITS_48
	tls: splice_read: fix record type check
	tls: splice_read: fix accessing pre-processed records
	tls: fix replacing proto_ops
	net: stmmac: Disable Tx queues when reconfiguring the interface
	net/sched: sch_ets: don't peek at classes beyond 'nbands'
	ethtool: ioctl: fix potential NULL deref in ethtool_set_coalesce()
	net: vlan: fix underflow for the real_dev refcnt
	net/smc: Don't call clcsock shutdown twice when smc shutdown
	net: hns3: fix VF RSS failed problem after PF enable multi-TCs
	net: hns3: fix incorrect components info of ethtool --reset command
	net: mscc: ocelot: don't downgrade timestamping RX filters in SIOCSHWTSTAMP
	net: mscc: ocelot: correctly report the timestamping RX filters in ethtool
	locking/rwsem: Make handoff bit handling more consistent
	perf: Ignore sigtrap for tracepoints destined for other tasks
	sched/scs: Reset task stack state in bringup_cpu()
	iommu/rockchip: Fix PAGE_DESC_HI_MASKs for RK3568
	iommu/vt-d: Fix unmap_pages support
	f2fs: quota: fix potential deadlock
	f2fs: set SBI_NEED_FSCK flag when inconsistent node block found
	riscv: dts: microchip: fix board compatible
	riscv: dts: microchip: drop duplicated MMC/SDHC node
	cifs: nosharesock should not share socket with future sessions
	ceph: properly handle statfs on multifs setups
	iommu/amd: Clarify AMD IOMMUv2 initialization messages
	vdpa_sim: avoid putting an uninitialized iova_domain
	vhost/vsock: fix incorrect used length reported to the guest
	ksmbd: Fix an error handling path in 'smb2_sess_setup()'
	tracing: Check pid filtering when creating events
	cifs: nosharesock should be set on new server
	io_uring: fix soft lockup when call __io_remove_buffers
	firmware: arm_scmi: Fix type error assignment in voltage protocol
	firmware: arm_scmi: Fix type error in sensor protocol
	docs: accounting: update delay-accounting.rst reference
	blk-mq: cancel blk-mq dispatch work in both blk_cleanup_queue and disk_release()
	block: avoid to quiesce queue in elevator_init_mq
	drm/amdgpu/gfx10: add wraparound gpu counter check for APUs as well
	drm/amdgpu/gfx9: switch to golden tsc registers for renoir+
	Linux 5.15.6

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ibe65221ba285038e25de36ad3659e0ce201408c2
2021-12-02 09:55:34 +01:00
Mark Rutland
229c555260 sched/scs: Reset task stack state in bringup_cpu()
[ Upstream commit dce1ca0525bfdc8a69a9343bc714fbc19a2f04b3 ]

To hot unplug a CPU, the idle task on that CPU calls a few layers of C
code before finally leaving the kernel. When KASAN is in use, poisoned
shadow is left around for each of the active stack frames, and when
shadow call stacks are in use. When shadow call stacks (SCS) are in use
the task's saved SCS SP is left pointing at an arbitrary point within
the task's shadow call stack.

When a CPU is offlined than onlined back into the kernel, this stale
state can adversely affect execution. Stale KASAN shadow can alias new
stackframes and result in bogus KASAN warnings. A stale SCS SP is
effectively a memory leak, and prevents a portion of the shadow call
stack being used. Across a number of hotplug cycles the idle task's
entire shadow call stack can become unusable.

We previously fixed the KASAN issue in commit:

  e1b77c9298 ("sched/kasan: remove stale KASAN poison after hotplug")

... by removing any stale KASAN stack poison immediately prior to
onlining a CPU.

Subsequently in commit:

  f1a0a376ca ("sched/core: Initialize the idle task with preemption disabled")

... the refactoring left the KASAN and SCS cleanup in one-time idle
thread initialization code rather than something invoked prior to each
CPU being onlined, breaking both as above.

We fixed SCS (but not KASAN) in commit:

  63acd42c0d ("sched/scs: Reset the shadow stack when idle_task_exit")

... but as this runs in the context of the idle task being offlined it's
potentially fragile.

To fix these consistently and more robustly, reset the SCS SP and KASAN
shadow of a CPU's idle task immediately before we online that CPU in
bringup_cpu(). This ensures the idle task always has a consistent state
when it is running, and removes the need to so so when exiting an idle
task.

Whenever any thread is created, dup_task_struct() will give the task a
stack which is free of KASAN shadow, and initialize the task's SCS SP,
so there's no need to specially initialize either for idle thread within
init_idle(), as this was only necessary to handle hotplug cycles.

I've tested this on arm64 with:

* gcc 11.1.0, defconfig +KASAN_INLINE, KASAN_STACK
* clang 12.0.0, defconfig +KASAN_INLINE, KASAN_STACK, SHADOW_CALL_STACK

... offlining and onlining CPUS with:

| while true; do
|   for C in /sys/devices/system/cpu/cpu*/online; do
|     echo 0 > $C;
|     echo 1 > $C;
|   done
| done

Fixes: f1a0a376ca ("sched/core: Initialize the idle task with preemption disabled")
Reported-by: Qian Cai <quic_qiancai@quicinc.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Tested-by: Qian Cai <quic_qiancai@quicinc.com>
Link: https://lore.kernel.org/lkml/20211115113310.35693-1-mark.rutland@arm.com/
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-12-01 09:04:54 +01:00
Greg Kroah-Hartman
966869fb2a Merge 5.15.5 into android13-5.15
Changes in 5.15.5
	arm64: zynqmp: Do not duplicate flash partition label property
	arm64: zynqmp: Fix serial compatible string
	clk: sunxi-ng: Unregister clocks/resets when unbinding
	ARM: dts: sunxi: Fix OPPs node name
	arm64: dts: allwinner: h5: Fix GPU thermal zone node name
	arm64: dts: allwinner: a100: Fix thermal zone node name
	staging: wfx: ensure IRQ is ready before enabling it
	ARM: dts: BCM5301X: Fix nodes names
	ARM: dts: BCM5301X: Fix MDIO mux binding
	ARM: dts: NSP: Fix mpcore, mmc node names
	arm64: dts: broadcom: bcm4908: Move reboot syscon out of bus
	scsi: pm80xx: Fix memory leak during rmmod
	scsi: lpfc: Fix list_add() corruption in lpfc_drain_txq()
	ASoC: mediatek: mt8195: Add missing of_node_put()
	arm64: dts: rockchip: Disable CDN DP on Pinebook Pro
	arm64: dts: hisilicon: fix arm,sp805 compatible string
	RDMA/bnxt_re: Check if the vlan is valid before reporting
	bus: ti-sysc: Add quirk handling for reinit on context lost
	bus: ti-sysc: Use context lost quirk for otg
	usb: musb: tusb6010: check return value after calling platform_get_resource()
	usb: typec: tipd: Remove WARN_ON in tps6598x_block_read
	ARM: dts: ux500: Skomer regulator fixes
	staging: rtl8723bs: remove possible deadlock when disconnect (v2)
	staging: rtl8723bs: remove a second possible deadlock
	staging: rtl8723bs: remove a third possible deadlock
	ARM: BCM53016: Specify switch ports for Meraki MR32
	arm64: dts: qcom: msm8998: Fix CPU/L2 idle state latency and residency
	arm64: dts: qcom: ipq6018: Fix qcom,controlled-remotely property
	arm64: dts: qcom: ipq8074: Fix qcom,controlled-remotely property
	arm64: dts: qcom: sdm845: Fix qcom,controlled-remotely property
	arm64: dts: freescale: fix arm,sp805 compatible string
	arm64: dts: ls1012a: Add serial alias for ls1012a-rdb
	RDMA/rxe: Separate HW and SW l/rkeys
	ASoC: SOF: Intel: hda-dai: fix potential locking issue
	scsi: core: Fix scsi_mode_sense() buffer length handling
	ALSA: usb-audio: disable implicit feedback sync for Behringer UFX1204 and UFX1604
	clk: imx: imx6ul: Move csi_sel mux to correct base register
	ASoC: es8316: Use IRQF_NO_AUTOEN when requesting the IRQ
	ASoC: rt5651: Use IRQF_NO_AUTOEN when requesting the IRQ
	ASoC: nau8824: Add DMI quirk mechanism for active-high jack-detect
	scsi: advansys: Fix kernel pointer leak
	scsi: smartpqi: Add controller handshake during kdump
	arm64: dts: imx8mm-kontron: Fix reset delays for ethernet PHY
	ALSA: intel-dsp-config: add quirk for APL/GLK/TGL devices based on ES8336 codec
	ASoC: Intel: soc-acpi: add missing quirk for TGL SDCA single amp
	ASoC: Intel: sof_sdw: add missing quirk for Dell SKU 0A45
	firmware_loader: fix pre-allocated buf built-in firmware use
	HID: multitouch: disable sticky fingers for UPERFECT Y
	ALSA: usb-audio: Add support for the Pioneer DJM 750MK2 Mixer/Soundcard
	ARM: dts: omap: fix gpmc,mux-add-data type
	usb: host: ohci-tmio: check return value after calling platform_get_resource()
	ASoC: rt5682: fix a little pop while playback
	ARM: dts: ls1021a: move thermal-zones node out of soc/
	ARM: dts: ls1021a-tsn: use generic "jedec,spi-nor" compatible for flash
	ALSA: ISA: not for M68K
	iommu/vt-d: Do not falsely log intel_iommu is unsupported kernel option
	tty: tty_buffer: Fix the softlockup issue in flush_to_ldisc
	MIPS: sni: Fix the build
	scsi: scsi_debug: Fix out-of-bound read in resp_readcap16()
	scsi: scsi_debug: Fix out-of-bound read in resp_report_tgtpgs()
	scsi: target: Fix ordered tag handling
	scsi: target: Fix alua_tg_pt_gps_count tracking
	iio: imu: st_lsm6dsx: Avoid potential array overflow in st_lsm6dsx_set_odr()
	RDMA/core: Use kvzalloc when allocating the struct ib_port
	scsi: lpfc: Fix use-after-free in lpfc_unreg_rpi() routine
	scsi: lpfc: Fix link down processing to address NULL pointer dereference
	scsi: lpfc: Allow fabric node recovery if recovery is in progress before devloss
	memory: tegra20-emc: Add runtime dependency on devfreq governor module
	powerpc/5200: dts: fix memory node unit name
	ARM: dts: qcom: fix memory and mdio nodes naming for RB3011
	arm64: dts: qcom: Fix node name of rpm-msg-ram device nodes
	ALSA: gus: fix null pointer dereference on pointer block
	ALSA: usb-audio: fix null pointer dereference on pointer cs_desc
	clk: at91: sama7g5: remove prescaler part of master clock
	iommu/dart: Initialize DART_STREAMS_ENABLE
	powerpc/dcr: Use cmplwi instead of 3-argument cmpli
	powerpc/8xx: Fix Oops with STRICT_KERNEL_RWX without DEBUG_RODATA_TEST
	sh: check return code of request_irq
	maple: fix wrong return value of maple_bus_init().
	f2fs: fix up f2fs_lookup tracepoints
	f2fs: fix to use WHINT_MODE
	f2fs: fix wrong condition to trigger background checkpoint correctly
	sh: fix kconfig unmet dependency warning for FRAME_POINTER
	sh: math-emu: drop unused functions
	sh: define __BIG_ENDIAN for math-emu
	f2fs: compress: disallow disabling compress on non-empty compressed file
	f2fs: fix incorrect return value in f2fs_sanity_check_ckpt()
	clk: ingenic: Fix bugs with divided dividers
	clk/ast2600: Fix soc revision for AHB
	clk: qcom: gcc-msm8996: Drop (again) gcc_aggre1_pnoc_ahb_clk
	KVM: arm64: Fix host stage-2 finalization
	mips: BCM63XX: ensure that CPU_SUPPORTS_32BIT_KERNEL is set
	MIPS: boot/compressed/: add __bswapdi2() to target for ZSTD decompression
	sched/core: Mitigate race cpus_share_cache()/update_top_cache_domain()
	sched/fair: Prevent dead task groups from regaining cfs_rq's
	perf/x86/vlbr: Add c->flags to vlbr event constraints
	blkcg: Remove extra blkcg_bio_issue_init
	tracing/histogram: Do not copy the fixed-size char array field over the field size
	perf bpf: Avoid memory leak from perf_env__insert_btf()
	perf bench futex: Fix memory leak of perf_cpu_map__new()
	perf tests: Remove bash construct from record+zstd_comp_decomp.sh
	drm/nouveau: hdmigv100.c: fix corrupted HDMI Vendor InfoFrame
	bpf: Fix inner map state pruning regression.
	samples/bpf: Fix summary per-sec stats in xdp_sample_user
	samples/bpf: Fix incorrect use of strlen in xdp_redirect_cpu
	selftests: net: switch to socat in the GSO GRE test
	net/ipa: ipa_resource: Fix wrong for loop range
	tcp: Fix uninitialized access in skb frags array for Rx 0cp.
	tracing: Add length protection to histogram string copies
	nl80211: fix radio statistics in survey dump
	mac80211: fix monitor_sdata RCU/locking assertions
	net: ipa: HOLB register sometimes must be written twice
	net: ipa: disable HOLB drop when updating timer
	selftests: gpio: fix gpio compiling error
	net: bnx2x: fix variable dereferenced before check
	bnxt_en: reject indirect blk offload when hw-tc-offload is off
	tipc: only accept encrypted MSG_CRYPTO msgs
	sock: fix /proc/net/sockstat underflow in sk_clone_lock()
	net/smc: Make sure the link_id is unique
	NFSD: Fix exposure in nfsd4_decode_bitmap()
	iavf: Fix return of set the new channel count
	iavf: check for null in iavf_fix_features
	iavf: free q_vectors before queues in iavf_disable_vf
	iavf: don't clear a lock we don't hold
	iavf: Fix failure to exit out from last all-multicast mode
	iavf: prevent accidental free of filter structure
	iavf: validate pointers
	iavf: Fix for the false positive ASQ/ARQ errors while issuing VF reset
	iavf: Fix for setting queues to 0
	iavf: Restore VLAN filters after link down
	bpf: Fix toctou on read-only map's constant scalar tracking
	MIPS: generic/yamon-dt: fix uninitialized variable error
	mips: bcm63xx: add support for clk_get_parent()
	mips: lantiq: add support for clk_get_parent()
	gpio: rockchip: needs GENERIC_IRQ_CHIP to fix build errors
	platform/x86: hp_accel: Fix an error handling path in 'lis3lv02d_probe()'
	platform/x86: think-lmi: Abort probe on analyze failure
	udp: Validate checksum in udp_read_sock()
	btrfs: make 1-bit bit-fields of scrub_page unsigned int
	RDMA/core: Set send and receive CQ before forwarding to the driver
	net/mlx5e: kTLS, Fix crash in RX resync flow
	net/mlx5e: Wait for concurrent flow deletion during neigh/fib events
	net/mlx5: E-Switch, Fix resetting of encap mode when entering switchdev
	net/mlx5e: nullify cq->dbg pointer in mlx5_debug_cq_remove()
	net/mlx5: Update error handler for UCTX and UMEM
	net/mlx5: E-Switch, rebuild lag only when needed
	net/mlx5e: CT, Fix multiple allocations and memleak of mod acts
	net/mlx5: Lag, update tracker when state change event received
	net/mlx5: E-Switch, return error if encap isn't supported
	scsi: ufs: core: Improve SCSI abort handling
	scsi: core: sysfs: Fix hang when device state is set via sysfs
	scsi: ufs: core: Fix task management completion timeout race
	scsi: ufs: core: Fix another task management completion race
	net: mvmdio: fix compilation warning
	net: sched: act_mirred: drop dst for the direction from egress to ingress
	net: dpaa2-eth: fix use-after-free in dpaa2_eth_remove
	net: virtio_net_hdr_to_skb: count transport header in UFO
	i40e: Fix correct max_pkt_size on VF RX queue
	i40e: Fix NULL ptr dereference on VSI filter sync
	i40e: Fix changing previously set num_queue_pairs for PFs
	i40e: Fix ping is lost after configuring ADq on VF
	RDMA/mlx4: Do not fail the registration on port stats
	i40e: Fix warning message and call stack during rmmod i40e driver
	i40e: Fix creation of first queue by omitting it if is not power of two
	i40e: Fix display error code in dmesg
	NFC: reorganize the functions in nci_request
	NFC: reorder the logic in nfc_{un,}register_device
	NFC: add NCI_UNREG flag to eliminate the race
	e100: fix device suspend/resume
	ptp: ocp: Fix a couple NULL vs IS_ERR() checks
	tools build: Fix removal of feature-sync-compare-and-swap feature detection
	riscv: fix building external modules
	KVM: PPC: Book3S HV: Use GLOBAL_TOC for kvmppc_h_set_dabr/xdabr()
	powerpc: clean vdso32 and vdso64 directories
	powerpc/pseries: rename numa_dist_table to form2_distances
	powerpc/pseries: Fix numa FORM2 parsing fallback code
	pinctrl: qcom: sdm845: Enable dual edge errata
	pinctrl: qcom: sm8350: Correct UFS and SDC offsets
	perf/x86/intel/uncore: Fix filter_tid mask for CHA events on Skylake Server
	perf/x86/intel/uncore: Fix IIO event constraints for Skylake Server
	perf/x86/intel/uncore: Fix IIO event constraints for Snowridge
	s390/kexec: fix return code handling
	blk-cgroup: fix missing put device in error path from blkg_conf_pref()
	dmaengine: remove debugfs #ifdef
	tun: fix bonding active backup with arp monitoring
	Revert "mark pstore-blk as broken"
	pstore/blk: Use "%lu" to format unsigned long
	hexagon: export raw I/O routines for modules
	hexagon: clean up timer-regs.h
	tipc: check for null after calling kmemdup
	ipc: WARN if trying to remove ipc object which is absent
	shm: extend forced shm destroy to support objects from several IPC nses
	mm: kmemleak: slob: respect SLAB_NOLEAKTRACE flag
	hugetlb, userfaultfd: fix reservation restore on userfaultfd error
	kmap_local: don't assume kmap PTEs are linear arrays in memory
	mm/damon/dbgfs: use '__GFP_NOWARN' for user-specified size buffer allocation
	mm/damon/dbgfs: fix missed use of damon_dbgfs_lock
	x86/boot: Pull up cmdline preparation and early param parsing
	x86/sgx: Fix free page accounting
	x86/hyperv: Fix NULL deref in set_hv_tscchange_cb() if Hyper-V setup fails
	KVM: x86: Assume a 64-bit hypercall for guests with protected state
	KVM: x86: Fix uninitialized eoi_exit_bitmap usage in vcpu_load_eoi_exitmap()
	KVM: x86/mmu: include EFER.LMA in extended mmu role
	KVM: x86/xen: Fix get_attr of KVM_XEN_ATTR_TYPE_SHARED_INFO
	powerpc/signal32: Fix sigset_t copy
	powerpc/xive: Change IRQ domain to a tree domain
	powerpc/8xx: Fix pinned TLBs with CONFIG_STRICT_KERNEL_RWX
	Revert "drm/i915/tgl/dsi: Gate the ddi clocks after pll mapping"
	Revert "parisc: Reduce sigreturn trampoline to 3 instructions"
	ata: libata: improve ata_read_log_page() error message
	ata: libata: add missing ata_identify_page_supported() calls
	scsi: qla2xxx: Fix mailbox direction flags in qla2xxx_get_adapter_id()
	pinctrl: ralink: include 'ralink_regs.h' in 'pinctrl-mt7620.c'
	s390/setup: avoid reserving memory above identity mapping
	s390/boot: simplify and fix kernel memory layout setup
	s390/vdso: filter out -mstack-guard and -mstack-size
	s390/kexec: fix memory leak of ipl report buffer
	s390/dump: fix copying to user-space of swapped kdump oldmem
	block: Check ADMIN before NICE for IOPRIO_CLASS_RT
	fbdev: Prevent probing generic drivers if a FB is already registered
	KVM: SEV: Disallow COPY_ENC_CONTEXT_FROM if target has created vCPUs
	KVM: nVMX: don't use vcpu->arch.efer when checking host state on nested state load
	drm/cma-helper: Release non-coherent memory with dma_free_noncoherent()
	printk: restore flushing of NMI buffers on remote CPUs after NMI backtraces
	udf: Fix crash after seekdir
	spi: fix use-after-free of the add_lock mutex
	net: stmmac: socfpga: add runtime suspend/resume callback for stratix10 platform
	Drivers: hv: balloon: Use VMBUS_RING_SIZE() wrapper for dm_ring_size
	btrfs: fix memory ordering between normal and ordered work functions
	fs: handle circular mappings correctly
	net: stmmac: Fix signed/unsigned wreckage
	parisc/sticon: fix reverse colors
	cfg80211: call cfg80211_stop_ap when switch from P2P_GO type
	mac80211: fix radiotap header generation
	mac80211: drop check for DONT_REORDER in __ieee80211_select_queue
	drm/amd/display: Update swizzle mode enums
	drm/amd/display: Limit max DSC target bpp for specific monitors
	drm/i915/guc: Fix outstanding G2H accounting
	drm/i915/guc: Don't enable scheduling on a banned context, guc_id invalid, not registered
	drm/i915/guc: Workaround reset G2H is received after schedule done G2H
	drm/i915/guc: Don't drop ce->guc_active.lock when unwinding context
	drm/i915/guc: Unwind context requests in reverse order
	drm/udl: fix control-message timeout
	drm/prime: Fix use after free in mmap with drm_gem_ttm_mmap
	drm/nouveau: Add a dedicated mutex for the clients list
	drm/nouveau: use drm_dev_unplug() during device removal
	drm/nouveau: clean up all clients on device removal
	drm/i915/dp: Ensure sink rate values are always valid
	drm/i915/dp: Ensure max link params are always valid
	drm/i915: Fix type1 DVI DP dual mode adapter heuristic for modern platforms
	drm/amdgpu: fix set scaling mode Full/Full aspect/Center not works on vga and dvi connectors
	drm/amd/pm: avoid duplicate powergate/ungate setting
	signal: Implement force_fatal_sig
	exit/syscall_user_dispatch: Send ordinary signals on failure
	signal/powerpc: On swapcontext failure force SIGSEGV
	signal/s390: Use force_sigsegv in default_trap_handler
	signal/sparc32: Exit with a fatal signal when try_to_clear_window_buffer fails
	signal/sparc32: In setup_rt_frame and setup_fram use force_fatal_sig
	signal/vm86_32: Properly send SIGSEGV when the vm86 state cannot be saved.
	signal/x86: In emulate_vsyscall force a signal instead of calling do_exit
	signal: Replace force_sigsegv(SIGSEGV) with force_fatal_sig(SIGSEGV)
	signal: Don't always set SA_IMMUTABLE for forced signals
	signal: Replace force_fatal_sig with force_exit_sig when in doubt
	hugetlbfs: flush TLBs correctly after huge_pmd_unshare
	RDMA/netlink: Add __maybe_unused to static inline in C file
	bpf: Forbid bpf_ktime_get_coarse_ns and bpf_timer_* in tracing progs
	selinux: fix NULL-pointer dereference when hashtab allocation fails
	ASoC: DAPM: Cover regression by kctl change notification fix
	ASoC: rsnd: fixup DMAEngine API
	usb: max-3421: Use driver data instead of maintaining a list of bound devices
	ice: Fix VF true promiscuous mode
	ice: Delete always true check of PF pointer
	fs: export an inode_update_time helper
	btrfs: update device path inode time instead of bd_inode
	net: add and use skb_unclone_keeptruesize() helper
	x86/Kconfig: Fix an unused variable error in dell-smm-hwmon
	ALSA: hda: hdac_ext_stream: fix potential locking issues
	ALSA: hda: hdac_stream: fix potential locking issue in snd_hdac_stream_assign()
	Linux 5.15.5

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: If86a02ba2cf9af765d9838ada3b9a2cbcea9a08d
2021-11-25 10:40:10 +01:00
Mathias Krause
512e21c150 sched/fair: Prevent dead task groups from regaining cfs_rq's
[ Upstream commit b027789e5e50494c2325cc70c8642e7fd6059479 ]

Kevin is reporting crashes which point to a use-after-free of a cfs_rq
in update_blocked_averages(). Initial debugging revealed that we've
live cfs_rq's (on_list=1) in an about to be kfree()'d task group in
free_fair_sched_group(). However, it was unclear how that can happen.

His kernel config happened to lead to a layout of struct sched_entity
that put the 'my_q' member directly into the middle of the object
which makes it incidentally overlap with SLUB's freelist pointer.
That, in combination with SLAB_FREELIST_HARDENED's freelist pointer
mangling, leads to a reliable access violation in form of a #GP which
made the UAF fail fast.

Michal seems to have run into the same issue[1]. He already correctly
diagnosed that commit a7b359fc6a ("sched/fair: Correctly insert
cfs_rq's to list on unthrottle") is causing the preconditions for the
UAF to happen by re-adding cfs_rq's also to task groups that have no
more running tasks, i.e. also to dead ones. His analysis, however,
misses the real root cause and it cannot be seen from the crash
backtrace only, as the real offender is tg_unthrottle_up() getting
called via sched_cfs_period_timer() via the timer interrupt at an
inconvenient time.

When unregister_fair_sched_group() unlinks all cfs_rq's from the dying
task group, it doesn't protect itself from getting interrupted. If the
timer interrupt triggers while we iterate over all CPUs or after
unregister_fair_sched_group() has finished but prior to unlinking the
task group, sched_cfs_period_timer() will execute and walk the list of
task groups, trying to unthrottle cfs_rq's, i.e. re-add them to the
dying task group. These will later -- in free_fair_sched_group() -- be
kfree()'ed while still being linked, leading to the fireworks Kevin
and Michal are seeing.

To fix this race, ensure the dying task group gets unlinked first.
However, simply switching the order of unregistering and unlinking the
task group isn't sufficient, as concurrent RCU walkers might still see
it, as can be seen below:

    CPU1:                                      CPU2:
      :                                        timer IRQ:
      :                                          do_sched_cfs_period_timer():
      :                                            :
      :                                            distribute_cfs_runtime():
      :                                              rcu_read_lock();
      :                                              :
      :                                              unthrottle_cfs_rq():
    sched_offline_group():                             :
      :                                                walk_tg_tree_from(…,tg_unthrottle_up,…):
      list_del_rcu(&tg->list);                           :
 (1)  :                                                  list_for_each_entry_rcu(child, &parent->children, siblings)
      :                                                    :
 (2)  list_del_rcu(&tg->siblings);                         :
      :                                                    tg_unthrottle_up():
      unregister_fair_sched_group():                         struct cfs_rq *cfs_rq = tg->cfs_rq[cpu_of(rq)];
        :                                                    :
        list_del_leaf_cfs_rq(tg->cfs_rq[cpu]);               :
        :                                                    :
        :                                                    if (!cfs_rq_is_decayed(cfs_rq) || cfs_rq->nr_running)
 (3)    :                                                        list_add_leaf_cfs_rq(cfs_rq);
      :                                                      :
      :                                                    :
      :                                                  :
      :                                                :
      :                                              :
 (4)  :                                              rcu_read_unlock();

CPU 2 walks the task group list in parallel to sched_offline_group(),
specifically, it'll read the soon to be unlinked task group entry at
(1). Unlinking it on CPU 1 at (2) therefore won't prevent CPU 2 from
still passing it on to tg_unthrottle_up(). CPU 1 now tries to unlink
all cfs_rq's via list_del_leaf_cfs_rq() in
unregister_fair_sched_group().  Meanwhile CPU 2 will re-add some of
these at (3), which is the cause of the UAF later on.

To prevent this additional race from happening, we need to wait until
walk_tg_tree_from() has finished traversing the task groups, i.e.
after the RCU read critical section ends in (4). Afterwards we're safe
to call unregister_fair_sched_group(), as each new walk won't see the
dying task group any more.

On top of that, we need to wait yet another RCU grace period after
unregister_fair_sched_group() to ensure print_cfs_stats(), which might
run concurrently, always sees valid objects, i.e. not already free'd
ones.

This patch survives Michal's reproducer[2] for 8h+ now, which used to
trigger within minutes before.

  [1] https://lore.kernel.org/lkml/20211011172236.11223-1-mkoutny@suse.com/
  [2] https://lore.kernel.org/lkml/20211102160228.GA57072@blackbody.suse.cz/

Fixes: a7b359fc6a ("sched/fair: Correctly insert cfs_rq's to list on unthrottle")
[peterz: shuffle code around a bit]
Reported-by: Kevin Tanguy <kevin.tanguy@corp.ovh.com>
Signed-off-by: Mathias Krause <minipli@grsecurity.net>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-25 09:48:32 +01:00
Vincent Donnefort
e4511d8dc2 sched/core: Mitigate race cpus_share_cache()/update_top_cache_domain()
[ Upstream commit 42dc938a590c96eeb429e1830123fef2366d9c80 ]

Nothing protects the access to the per_cpu variable sd_llc_id. When testing
the same CPU (i.e. this_cpu == that_cpu), a race condition exists with
update_top_cache_domain(). One scenario being:

              CPU1                            CPU2
  ==================================================================

  per_cpu(sd_llc_id, CPUX) => 0
                                    partition_sched_domains_locked()
      				      detach_destroy_domains()
  cpus_share_cache(CPUX, CPUX)          update_top_cache_domain(CPUX)
    per_cpu(sd_llc_id, CPUX) => 0
                                          per_cpu(sd_llc_id, CPUX) = CPUX
    per_cpu(sd_llc_id, CPUX) => CPUX
    return false

ttwu_queue_cond() wouldn't catch smp_processor_id() == cpu and the result
is a warning triggered from ttwu_queue_wakelist().

Avoid a such race in cpus_share_cache() by always returning true when
this_cpu == that_cpu.

Fixes: 518cd62341 ("sched: Only queue remote wakeups when crossing cache boundaries")
Reported-by: Jing-Ting Wu <jing-ting.wu@mediatek.com>
Signed-off-by: Vincent Donnefort <vincent.donnefort@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lore.kernel.org/r/20211104175120.857087-1-vincent.donnefort@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-25 09:48:32 +01:00
Greg Kroah-Hartman
36de88a855 Merge 5.15.3 into android13-5.15
Changes in 5.15.3
	xhci: Fix USB 3.1 enumeration issues by increasing roothub power-on-good delay
	usb: xhci: Enable runtime-pm by default on AMD Yellow Carp platform
	Input: iforce - fix control-message timeout
	Input: elantench - fix misreporting trackpoint coordinates
	Input: i8042 - Add quirk for Fujitsu Lifebook T725
	libata: fix read log timeout value
	ocfs2: fix data corruption on truncate
	scsi: scsi_ioctl: Validate command size
	scsi: core: Avoid leaving shost->last_reset with stale value if EH does not run
	scsi: core: Remove command size deduction from scsi_setup_scsi_cmnd()
	scsi: lpfc: Don't release final kref on Fport node while ABTS outstanding
	scsi: lpfc: Fix FCP I/O flush functionality for TMF routines
	scsi: qla2xxx: Fix crash in NVMe abort path
	scsi: qla2xxx: Fix kernel crash when accessing port_speed sysfs file
	scsi: qla2xxx: Fix use after free in eh_abort path
	ce/gf100: fix incorrect CE0 address calculation on some GPUs
	char: xillybus: fix msg_ep UAF in xillyusb_probe()
	mmc: mtk-sd: Add wait dma stop done flow
	mmc: dw_mmc: Dont wait for DRTO on Write RSP error
	exfat: fix incorrect loading of i_blocks for large files
	io-wq: remove worker to owner tw dependency
	parisc: Fix set_fixmap() on PA1.x CPUs
	parisc: Fix ptrace check on syscall return
	tpm: Check for integer overflow in tpm2_map_response_body()
	firmware/psci: fix application of sizeof to pointer
	crypto: s5p-sss - Add error handling in s5p_aes_probe()
	media: rkvdec: Do not override sizeimage for output format
	media: ite-cir: IR receiver stop working after receive overflow
	media: rkvdec: Support dynamic resolution changes
	media: ir-kbd-i2c: improve responsiveness of hauppauge zilog receivers
	media: v4l2-ioctl: Fix check_ext_ctrls
	ALSA: hda/realtek: Fix mic mute LED for the HP Spectre x360 14
	ALSA: hda/realtek: Add a quirk for HP OMEN 15 mute LED
	ALSA: hda/realtek: Add quirk for Clevo PC70HS
	ALSA: hda/realtek: Headset fixup for Clevo NH77HJQ
	ALSA: hda/realtek: Add a quirk for Acer Spin SP513-54N
	ALSA: hda/realtek: Add quirk for ASUS UX550VE
	ALSA: hda/realtek: Add quirk for HP EliteBook 840 G7 mute LED
	ALSA: ua101: fix division by zero at probe
	ALSA: 6fire: fix control and bulk message timeouts
	ALSA: line6: fix control and interrupt message timeouts
	ALSA: mixer: oss: Fix racy access to slots
	ALSA: mixer: fix deadlock in snd_mixer_oss_set_volume
	ALSA: usb-audio: Line6 HX-Stomp XL USB_ID for 48k-fixed quirk
	ALSA: usb-audio: Add registration quirk for JBL Quantum 400
	ALSA: hda: Free card instance properly at probe errors
	ALSA: synth: missing check for possible NULL after the call to kstrdup
	ALSA: pci: rme: Fix unaligned buffer addresses
	ALSA: PCM: Fix NULL dereference at mmap checks
	ALSA: timer: Fix use-after-free problem
	ALSA: timer: Unconditionally unlink slave instances, too
	Revert "ext4: enforce buffer head state assertion in ext4_da_map_blocks"
	ext4: fix lazy initialization next schedule time computation in more granular unit
	ext4: ensure enough credits in ext4_ext_shift_path_extents
	ext4: refresh the ext4_ext_path struct after dropping i_data_sem.
	fuse: fix page stealing
	x86/sme: Use #define USE_EARLY_PGTABLE_L5 in mem_encrypt_identity.c
	x86/cpu: Fix migration safety with X86_BUG_NULL_SEL
	x86/irq: Ensure PI wakeup handler is unregistered before module unload
	x86/iopl: Fake iopl(3) CLI/STI usage
	btrfs: clear MISSING device status bit in btrfs_close_one_device
	btrfs: fix lost error handling when replaying directory deletes
	btrfs: call btrfs_check_rw_degradable only if there is a missing device
	KVM: x86/mmu: Drop a redundant, broken remote TLB flush
	KVM: VMX: Unregister posted interrupt wakeup handler on hardware unsetup
	KVM: PPC: Tick accounting should defer vtime accounting 'til after IRQ handling
	ia64: kprobes: Fix to pass correct trampoline address to the handler
	selinux: fix race condition when computing ocontext SIDs
	ipmi:watchdog: Set panic count to proper value on a panic
	md/raid1: only allocate write behind bio for WriteMostly device
	hwmon: (pmbus/lm25066) Add offset coefficients
	regulator: s5m8767: do not use reset value as DVS voltage if GPIO DVS is disabled
	regulator: dt-bindings: samsung,s5m8767: correct s5m8767,pmic-buck-default-dvs-idx property
	EDAC/sb_edac: Fix top-of-high-memory value for Broadwell/Haswell
	mwifiex: fix division by zero in fw download path
	ath6kl: fix division by zero in send path
	ath6kl: fix control-message timeout
	ath10k: fix control-message timeout
	ath10k: fix division by zero in send path
	PCI: Mark Atheros QCA6174 to avoid bus reset
	rtl8187: fix control-message timeouts
	evm: mark evm_fixmode as __ro_after_init
	ifb: Depend on netfilter alternatively to tc
	platform/surface: aggregator_registry: Add support for Surface Laptop Studio
	mt76: mt7615: fix skb use-after-free on mac reset
	HID: surface-hid: Use correct event registry for managing HID events
	HID: surface-hid: Allow driver matching for target ID 1 devices
	wcn36xx: Fix HT40 capability for 2Ghz band
	wcn36xx: Fix tx_status mechanism
	wcn36xx: Fix (QoS) null data frame bitrate/modulation
	PM: sleep: Do not let "syscore" devices runtime-suspend during system transitions
	mwifiex: Read a PCI register after writing the TX ring write pointer
	mwifiex: Try waking the firmware until we get an interrupt
	libata: fix checking of DMA state
	dma-buf: fix and rework dma_buf_poll v7
	wcn36xx: handle connection loss indication
	rsi: fix occasional initialisation failure with BT coex
	rsi: fix key enabled check causing unwanted encryption for vap_id > 0
	rsi: fix rate mask set leading to P2P failure
	rsi: Fix module dev_oper_mode parameter description
	perf/x86/intel/uncore: Support extra IMC channel on Ice Lake server
	perf/x86/intel/uncore: Fix invalid unit check
	perf/x86/intel/uncore: Fix Intel ICX IIO event constraints
	RDMA/qedr: Fix NULL deref for query_qp on the GSI QP
	ASoC: tegra: Set default card name for Trimslice
	ASoC: tegra: Restore AC97 support
	signal: Remove the bogus sigkill_pending in ptrace_stop
	memory: renesas-rpc-if: Correct QSPI data transfer in Manual mode
	signal/mips: Update (_save|_restore)_fp_context to fail with -EFAULT
	signal: Add SA_IMMUTABLE to ensure forced siganls do not get changed
	soc: samsung: exynos-pmu: Fix compilation when nothing selects CONFIG_MFD_CORE
	soc: fsl: dpio: replace smp_processor_id with raw_smp_processor_id
	soc: fsl: dpio: use the combined functions to protect critical zone
	mtd: rawnand: socrates: Keep the driver compatible with on-die ECC engines
	mctp: handle the struct sockaddr_mctp padding fields
	power: supply: max17042_battery: Prevent int underflow in set_soc_threshold
	power: supply: max17042_battery: use VFSOC for capacity when no rsns
	iio: core: fix double free in iio_device_unregister_sysfs()
	iio: core: check return value when calling dev_set_name()
	KVM: arm64: Extract ESR_ELx.EC only
	KVM: x86: Fix recording of guest steal time / preempted status
	KVM: x86: Add helper to consolidate core logic of SET_CPUID{2} flows
	KVM: nVMX: Query current VMCS when determining if MSR bitmaps are in use
	KVM: nVMX: Handle dynamic MSR intercept toggling
	can: peak_usb: always ask for BERR reporting for PCAN-USB devices
	can: mcp251xfd: mcp251xfd_irq(): add missing can_rx_offload_threaded_irq_finish() in case of bus off
	can: j1939: j1939_tp_cmd_recv(): ignore abort message in the BAM transport
	can: j1939: j1939_can_recv(): ignore messages with invalid source address
	can: j1939: j1939_tp_cmd_recv(): check the dst address of TP.CM_BAM
	iio: adc: tsc2046: fix scan interval warning
	powerpc/85xx: Fix oops when mpc85xx_smp_guts_ids node cannot be found
	io_uring: honour zeroes as io-wq worker limits
	ring-buffer: Protect ring_buffer_reset() from reentrancy
	serial: core: Fix initializing and restoring termios speed
	ifb: fix building without CONFIG_NET_CLS_ACT
	xen/balloon: add late_initcall_sync() for initial ballooning done
	ovl: fix use after free in struct ovl_aio_req
	ovl: fix filattr copy-up failure
	PCI: pci-bridge-emul: Fix emulation of W1C bits
	PCI: cadence: Add cdns_plat_pcie_probe() missing return
	cxl/pci: Fix NULL vs ERR_PTR confusion
	PCI: aardvark: Do not clear status bits of masked interrupts
	PCI: aardvark: Fix checking for link up via LTSSM state
	PCI: aardvark: Do not unmask unused interrupts
	PCI: aardvark: Fix reporting Data Link Layer Link Active
	PCI: aardvark: Fix configuring Reference clock
	PCI: aardvark: Fix return value of MSI domain .alloc() method
	PCI: aardvark: Read all 16-bits from PCIE_MSI_PAYLOAD_REG
	PCI: aardvark: Fix support for bus mastering and PCI_COMMAND on emulated bridge
	PCI: aardvark: Fix support for PCI_BRIDGE_CTL_BUS_RESET on emulated bridge
	PCI: aardvark: Set PCI Bridge Class Code to PCI Bridge
	PCI: aardvark: Fix support for PCI_ROM_ADDRESS1 on emulated bridge
	quota: check block number when reading the block in quota file
	quota: correct error number in free_dqentry()
	cifs: To match file servers, make sure the server hostname matches
	cifs: set a minimum of 120s for next dns resolution
	mfd: simple-mfd-i2c: Select MFD_CORE to fix build error
	pinctrl: core: fix possible memory leak in pinctrl_enable()
	coresight: cti: Correct the parameter for pm_runtime_put
	coresight: trbe: Fix incorrect access of the sink specific data
	coresight: trbe: Defer the probe on offline CPUs
	iio: buffer: check return value of kstrdup_const()
	iio: buffer: Fix memory leak in iio_buffers_alloc_sysfs_and_mask()
	iio: buffer: Fix memory leak in __iio_buffer_alloc_sysfs_and_mask()
	iio: buffer: Fix memory leak in iio_buffer_register_legacy_sysfs_groups()
	drivers: iio: dac: ad5766: Fix dt property name
	iio: dac: ad5446: Fix ad5622_write() return value
	iio: ad5770r: make devicetree property reading consistent
	Documentation:devicetree:bindings:iio:dac: Fix val
	USB: serial: keyspan: fix memleak on probe errors
	serial: 8250: fix racy uartclk update
	ksmbd: set unique value to volume serial field in FS_VOLUME_INFORMATION
	io-wq: serialize hash clear with wakeup
	serial: 8250: Fix reporting real baudrate value in c_ospeed field
	Revert "serial: 8250: Fix reporting real baudrate value in c_ospeed field"
	most: fix control-message timeouts
	USB: iowarrior: fix control-message timeouts
	USB: chipidea: fix interrupt deadlock
	power: supply: max17042_battery: Clear status bits in interrupt handler
	component: do not leave master devres group open after bind
	dma-buf: WARN on dmabuf release with pending attachments
	drm: panel-orientation-quirks: Update the Lenovo Ideapad D330 quirk (v2)
	drm: panel-orientation-quirks: Add quirk for KD Kurio Smart C15200 2-in-1
	drm: panel-orientation-quirks: Add quirk for the Samsung Galaxy Book 10.6
	Bluetooth: sco: Fix lock_sock() blockage by memcpy_from_msg()
	Bluetooth: fix use-after-free error in lock_sock_nested()
	Bluetooth: call sock_hold earlier in sco_conn_del
	drm/panel-orientation-quirks: add Valve Steam Deck
	rcutorture: Avoid problematic critical section nesting on PREEMPT_RT
	platform/x86: wmi: do not fail if disabling fails
	drm/amdgpu: move iommu_resume before ip init/resume
	MIPS: lantiq: dma: add small delay after reset
	MIPS: lantiq: dma: reset correct number of channel
	locking/lockdep: Avoid RCU-induced noinstr fail
	net: sched: update default qdisc visibility after Tx queue cnt changes
	ACPI: resources: Add DMI-based legacy IRQ override quirk
	rcu-tasks: Move RTGS_WAIT_CBS to beginning of rcu_tasks_kthread() loop
	smackfs: Fix use-after-free in netlbl_catmap_walk()
	ath11k: Align bss_chan_info structure with firmware
	crypto: aesni - check walk.nbytes instead of err
	x86/mm/64: Improve stack overflow warnings
	x86: Increase exception stack sizes
	mwifiex: Run SET_BSS_MODE when changing from P2P to STATION vif-type
	mwifiex: Properly initialize private structure on interface type changes
	spi: Check we have a spi_device_id for each DT compatible
	fscrypt: allow 256-bit master keys with AES-256-XTS
	drm/amdgpu: Fix MMIO access page fault
	drm/amd/display: Fix null pointer dereference for encoders
	selftests: net: fib_nexthops: Wait before checking reported idle time
	ath11k: Avoid reg rules update during firmware recovery
	ath11k: add handler for scan event WMI_SCAN_EVENT_DEQUEUED
	ath11k: Change DMA_FROM_DEVICE to DMA_TO_DEVICE when map reinjected packets
	ath10k: high latency fixes for beacon buffer
	octeontx2-pf: Enable promisc/allmulti match MCAM entries.
	media: mt9p031: Fix corrupted frame after restarting stream
	media: netup_unidvb: handle interrupt properly according to the firmware
	media: atomisp: Fix error handling in probe
	media: stm32: Potential NULL pointer dereference in dcmi_irq_thread()
	media: uvcvideo: Set capability in s_param
	media: uvcvideo: Return -EIO for control errors
	media: uvcvideo: Set unique vdev name based in type
	media: vidtv: Fix memory leak in remove
	media: s5p-mfc: fix possible null-pointer dereference in s5p_mfc_probe()
	media: s5p-mfc: Add checking to s5p_mfc_probe().
	media: videobuf2: rework vb2_mem_ops API
	media: imx: set a media_device bus_info string
	media: rcar-vin: Use user provided buffers when starting
	media: mceusb: return without resubmitting URB in case of -EPROTO error.
	ia64: don't do IA64_CMPXCHG_DEBUG without CONFIG_PRINTK
	rtw88: fix RX clock gate setting while fifo dump
	brcmfmac: Add DMI nvram filename quirk for Cyberbook T116 tablet
	media: rcar-csi2: Add checking to rcsi2_start_receiver()
	ipmi: Disable some operations during a panic
	fs/proc/uptime.c: Fix idle time reporting in /proc/uptime
	kselftests/sched: cleanup the child processes
	ACPICA: Avoid evaluating methods too early during system resume
	cpufreq: Make policy min/max hard requirements
	ice: Move devlink port to PF/VF struct
	media: imx-jpeg: Fix possible null pointer dereference
	media: ipu3-imgu: imgu_fmt: Handle properly try
	media: ipu3-imgu: VIDIOC_QUERYCAP: Fix bus_info
	media: usb: dvd-usb: fix uninit-value bug in dibusb_read_eeprom_byte()
	net-sysfs: try not to restart the syscall if it will fail eventually
	drm/amdkfd: rm BO resv on validation to avoid deadlock
	tracefs: Have tracefs directories not set OTH permission bits by default
	tracing: Disable "other" permission bits in the tracefs files
	ath: dfs_pattern_detector: Fix possible null-pointer dereference in channel_detector_create()
	KVM: arm64: Propagate errors from __pkvm_prot_finalize hypercall
	mmc: moxart: Fix reference count leaks in moxart_probe
	iov_iter: Fix iov_iter_get_pages{,_alloc} page fault return value
	ACPI: battery: Accept charges over the design capacity as full
	ACPI: scan: Release PM resources blocked by unused objects
	drm/amd/display: fix null pointer deref when plugging in display
	drm/amdkfd: fix resume error when iommu disabled in Picasso
	net: phy: micrel: make *-skew-ps check more lenient
	leaking_addresses: Always print a trailing newline
	thermal/core: Fix null pointer dereference in thermal_release()
	drm/msm: prevent NULL dereference in msm_gpu_crashstate_capture()
	thermal/drivers/tsens: Add timeout to get_temp_tsens_valid
	block: bump max plugged deferred size from 16 to 32
	floppy: fix calling platform_device_unregister() on invalid drives
	md: update superblock after changing rdev flags in state_store
	memstick: r592: Fix a UAF bug when removing the driver
	locking/rwsem: Disable preemption for spinning region
	lib/xz: Avoid overlapping memcpy() with invalid input with in-place decompression
	lib/xz: Validate the value before assigning it to an enum variable
	workqueue: make sysfs of unbound kworker cpumask more clever
	tracing/cfi: Fix cmp_entries_* functions signature mismatch
	mt76: mt7915: fix an off-by-one bound check
	mwl8k: Fix use-after-free in mwl8k_fw_state_machine()
	iwlwifi: change all JnP to NO-160 configuration
	block: remove inaccurate requeue check
	media: allegro: ignore interrupt if mailbox is not initialized
	drm/amdgpu/pm: properly handle sclk for profiling modes on vangogh
	nvmet: fix use-after-free when a port is removed
	nvmet-rdma: fix use-after-free when a port is removed
	nvmet-tcp: fix use-after-free when a port is removed
	nvme: drop scan_lock and always kick requeue list when removing namespaces
	samples/bpf: Fix application of sizeof to pointer
	arm64: vdso32: suppress error message for 'make mrproper'
	PM: hibernate: Get block device exclusively in swsusp_check()
	selftests: kvm: fix mismatched fclose() after popen()
	selftests/bpf: Fix perf_buffer test on system with offline cpus
	iwlwifi: mvm: disable RX-diversity in powersave
	smackfs: use __GFP_NOFAIL for smk_cipso_doi()
	ARM: clang: Do not rely on lr register for stacktrace
	gre/sit: Don't generate link-local addr if addr_gen_mode is IN6_ADDR_GEN_MODE_NONE
	can: bittiming: can_fixup_bittiming(): change type of tseg1 and alltseg to unsigned int
	gfs2: Cancel remote delete work asynchronously
	gfs2: Fix glock_hash_walk bugs
	ARM: 9136/1: ARMv7-M uses BE-8, not BE-32
	tools/latency-collector: Use correct size when writing queue_full_warning
	vrf: run conntrack only in context of lower/physdev for locally generated packets
	net: annotate data-race in neigh_output()
	ACPI: AC: Quirk GK45 to skip reading _PSR
	ACPI: resources: Add one more Medion model in IRQ override quirk
	btrfs: reflink: initialize return value to 0 in btrfs_extent_same()
	btrfs: do not take the uuid_mutex in btrfs_rm_device
	spi: bcm-qspi: Fix missing clk_disable_unprepare() on error in bcm_qspi_probe()
	wcn36xx: Correct band/freq reporting on RX
	wcn36xx: Fix packet drop on resume
	Revert "wcn36xx: Enable firmware link monitoring"
	ftrace: do CPU checking after preemption disabled
	inet: remove races in inet{6}_getname()
	x86/hyperv: Protect set_hv_tscchange_cb() against getting preempted
	drm/amd/display: dcn20_resource_construct reduce scope of FPU enabled
	selftests/core: fix conflicting types compile error for close_range()
	perf/x86/intel: Fix ICL/SPR INST_RETIRED.PREC_DIST encodings
	parisc: fix warning in flush_tlb_all
	task_stack: Fix end_of_stack() for architectures with upwards-growing stack
	erofs: don't trigger WARN() when decompression fails
	parisc/unwind: fix unwinder when CONFIG_64BIT is enabled
	parisc/kgdb: add kgdb_roundup() to make kgdb work with idle polling
	netfilter: conntrack: set on IPS_ASSURED if flows enters internal stream state
	selftests/bpf: Fix strobemeta selftest regression
	fbdev/efifb: Release PCI device's runtime PM ref during FB destroy
	drm/bridge: anx7625: Propagate errors from sp_tx_rst_aux()
	perf/x86/intel/uncore: Fix Intel SPR CHA event constraints
	perf/x86/intel/uncore: Fix Intel SPR IIO event constraints
	perf/x86/intel/uncore: Fix Intel SPR M2PCIE event constraints
	perf/x86/intel/uncore: Fix Intel SPR M3UPI event constraints
	drm/bridge: it66121: Initialize {device,vendor}_ids
	drm/bridge: it66121: Wait for next bridge to be probed
	Bluetooth: fix init and cleanup of sco_conn.timeout_work
	libbpf: Don't crash on object files with no symbol tables
	Bluetooth: hci_uart: fix GPF in h5_recv
	rcu: Fix existing exp request check in sync_sched_exp_online_cleanup()
	MIPS: lantiq: dma: fix burst length for DEU
	x86/xen: Mark cpu_bringup_and_idle() as dead_end_function
	objtool: Handle __sanitize_cov*() tail calls
	net/mlx5: Publish and unpublish all devlink parameters at once
	drm/v3d: fix wait for TMU write combiner flush
	crypto: sm4 - Do not change section of ck and sbox
	virtio-gpu: fix possible memory allocation failure
	lockdep: Let lock_is_held_type() detect recursive read as read
	net: net_namespace: Fix undefined member in key_remove_domain()
	net: phylink: don't call netif_carrier_off() with NULL netdev
	drm: bridge: it66121: Fix return value it66121_probe
	spi: Fixed division by zero warning
	cgroup: Make rebind_subsystems() disable v2 controllers all at once
	wcn36xx: Fix Antenna Diversity Switching
	wilc1000: fix possible memory leak in cfg_scan_result()
	Bluetooth: btmtkuart: fix a memleak in mtk_hci_wmt_sync
	drm/amdgpu: Fix crash on device remove/driver unload
	drm/amd/display: Pass display_pipe_params_st as const in DML
	drm/amdgpu: move amdgpu_virt_release_full_gpu to fini_early stage
	crypto: caam - disable pkc for non-E SoCs
	crypto: qat - power up 4xxx device
	Bluetooth: hci_h5: Fix (runtime)suspend issues on RTL8723BS HCIs
	bnxt_en: Check devlink allocation and registration status
	qed: Don't ignore devlink allocation failures
	rxrpc: Fix _usecs_to_jiffies() by using usecs_to_jiffies()
	mptcp: do not shrink snd_nxt when recovering
	fortify: Fix dropped strcpy() compile-time write overflow check
	mac80211: twt: don't use potentially unaligned pointer
	cfg80211: always free wiphy specific regdomain
	net/mlx5: Accept devlink user input after driver initialization complete
	net: dsa: rtl8366rb: Fix off-by-one bug
	net: dsa: rtl8366: Fix a bug in deleting VLANs
	bpf/tests: Fix error in tail call limit tests
	ath11k: fix some sleeping in atomic bugs
	ath11k: Avoid race during regd updates
	ath11k: fix packet drops due to incorrect 6 GHz freq value in rx status
	ath11k: Fix memory leak in ath11k_qmi_driver_event_work
	gve: DQO: avoid unused variable warnings
	ath10k: Fix missing frame timestamp for beacon/probe-resp
	ath10k: sdio: Add missing BH locking around napi_schdule()
	drm/ttm: stop calling tt_swapin in vm_access
	arm64: mm: update max_pfn after memory hotplug
	drm/amdgpu: fix warning for overflow check
	libbpf: Fix skel_internal.h to set errno on loader retval < 0
	media: em28xx: add missing em28xx_close_extension
	media: meson-ge2d: Fix rotation parameter changes detection in 'ge2d_s_ctrl()'
	media: cxd2880-spi: Fix a null pointer dereference on error handling path
	media: ttusb-dec: avoid release of non-acquired mutex
	media: dvb-usb: fix ununit-value in az6027_rc_query
	media: imx258: Fix getting clock frequency
	media: v4l2-ioctl: S_CTRL output the right value
	media: mtk-vcodec: venc: fix return value when start_streaming fails
	media: TDA1997x: handle short reads of hdmi info frame.
	media: mtk-vpu: Fix a resource leak in the error handling path of 'mtk_vpu_probe()'
	media: imx-jpeg: Fix the error handling path of 'mxc_jpeg_probe()'
	media: i2c: ths8200 needs V4L2_ASYNC
	media: sun6i-csi: Allow the video device to be open multiple times
	media: radio-wl1273: Avoid card name truncation
	media: si470x: Avoid card name truncation
	media: tm6000: Avoid card name truncation
	media: cx23885: Fix snd_card_free call on null card pointer
	media: atmel: fix the ispck initialization
	scs: Release kasan vmalloc poison in scs_free process
	kprobes: Do not use local variable when creating debugfs file
	crypto: ecc - fix CRYPTO_DEFAULT_RNG dependency
	drm: fb_helper: fix CONFIG_FB dependency
	cpuidle: Fix kobject memory leaks in error paths
	media: em28xx: Don't use ops->suspend if it is NULL
	ath10k: Don't always treat modem stop events as crashes
	ath9k: Fix potential interrupt storm on queue reset
	PM: EM: Fix inefficient states detection
	x86/insn: Use get_unaligned() instead of memcpy()
	EDAC/amd64: Handle three rank interleaving mode
	rcu: Always inline rcu_dynticks_task*_{enter,exit}()
	rcu: Fix rcu_dynticks_curr_cpu_in_eqs() vs noinstr
	netfilter: nft_dynset: relax superfluous check on set updates
	media: venus: fix vpp frequency calculation for decoder
	media: dvb-frontends: mn88443x: Handle errors of clk_prepare_enable()
	crypto: ccree - avoid out-of-range warnings from clang
	crypto: qat - detect PFVF collision after ACK
	crypto: qat - disregard spurious PFVF interrupts
	hwrng: mtk - Force runtime pm ops for sleep ops
	ima: fix deadlock when traversing "ima_default_rules".
	b43legacy: fix a lower bounds test
	b43: fix a lower bounds test
	gve: Recover from queue stall due to missed IRQ
	gve: Track RX buffer allocation failures
	mmc: sdhci-omap: Fix NULL pointer exception if regulator is not configured
	mmc: sdhci-omap: Fix context restore
	memstick: avoid out-of-range warning
	memstick: jmb38x_ms: use appropriate free function in jmb38x_ms_alloc_host()
	net, neigh: Fix NTF_EXT_LEARNED in combination with NTF_USE
	hwmon: Fix possible memleak in __hwmon_device_register()
	hwmon: (pmbus/lm25066) Let compiler determine outer dimension of lm25066_coeff
	ath10k: fix max antenna gain unit
	kernel/sched: Fix sched_fork() access an invalid sched_task_group
	net: fealnx: fix build for UML
	net: intel: igc_ptp: fix build for UML
	net: tulip: winbond-840: fix build for UML
	tcp: switch orphan_count to bare per-cpu counters
	crypto: octeontx2 - set assoclen in aead_do_fallback()
	thermal/core: fix a UAF bug in __thermal_cooling_device_register()
	drm/msm/dsi: do not enable irq handler before powering up the host
	drm/msm: Fix potential Oops in a6xx_gmu_rpmh_init()
	drm/msm: potential error pointer dereference in init()
	drm/msm: unlock on error in get_sched_entity()
	drm/msm: fix potential NULL dereference in cleanup
	drm/msm: uninitialized variable in msm_gem_import()
	net: stream: don't purge sk_error_queue in sk_stream_kill_queues()
	thermal/drivers/qcom/lmh: make QCOM_LMH depends on QCOM_SCM
	mailbox: Remove WARN_ON for async_cb.cb in cmdq_exec_done
	media: ivtv: fix build for UML
	media: ir_toy: assignment to be16 should be of correct type
	mmc: mxs-mmc: disable regulator on error and in the remove function
	io-wq: Remove duplicate code in io_workqueue_create()
	block: ataflop: fix breakage introduced at blk-mq refactoring
	blk-wbt: prevent NULL pointer dereference in wb_timer_fn
	platform/x86: thinkpad_acpi: Fix bitwise vs. logical warning
	mailbox: mtk-cmdq: Validate alias_id on probe
	mailbox: mtk-cmdq: Fix local clock ID usage
	ACPI: PM: Turn off unused wakeup power resources
	ACPI: PM: Fix sharing of wakeup power resources
	drm/amdkfd: Fix an inappropriate error handling in allloc memory of gpu
	mt76: mt7921: fix endianness in mt7921_mcu_tx_done_event
	mt76: mt7915: fix endianness warning in mt7915_mac_add_txs_skb
	mt76: mt7921: fix endianness warning in mt7921_update_txs
	mt76: mt7615: fix endianness warning in mt7615_mac_write_txwi
	mt76: mt7915: fix info leak in mt7915_mcu_set_pre_cal()
	mt76: connac: fix mt76_connac_gtk_rekey_tlv usage
	mt76: fix build error implicit enumeration conversion
	mt76: mt7921: fix survey-dump reporting
	mt76: mt76x02: fix endianness warnings in mt76x02_mac.c
	mt76: mt7921: Fix out of order process by invalid event pkt
	mt76: mt7915: fix potential overflow of eeprom page index
	mt76: mt7915: fix bit fields for HT rate idx
	mt76: mt7921: fix dma hang in rmmod
	mt76: connac: fix GTK rekey offload failure on WPA mixed mode
	mt76: overwrite default reg_ops if necessary
	mt76: mt7921: report HE MU radiotap
	mt76: mt7921: fix firmware usage of RA info using legacy rates
	mt76: mt7921: fix kernel warning from cfg80211_calculate_bitrate
	mt76: mt7921: always wake device if necessary in debugfs
	mt76: mt7915: fix hwmon temp sensor mem use-after-free
	mt76: mt7615: fix hwmon temp sensor mem use-after-free
	mt76: mt7915: fix possible infinite loop release semaphore
	mt76: mt7921: fix retrying release semaphore without end
	mt76: mt7615: fix monitor mode tear down crash
	mt76: connac: fix possible NULL pointer dereference in mt76_connac_get_phy_mode_v2
	mt76: mt7915: fix sta_rec_wtbl tag len
	mt76: mt7915: fix muar_idx in mt7915_mcu_alloc_sta_req()
	rsi: stop thread firstly in rsi_91x_init() error handling
	mwifiex: Send DELBA requests according to spec
	iwlwifi: mvm: reset PM state on unsuccessful resume
	iwlwifi: pnvm: don't kmemdup() more than we have
	iwlwifi: pnvm: read EFI data only if long enough
	net: enetc: unmap DMA in enetc_send_cmd()
	phy: micrel: ksz8041nl: do not use power down mode
	nbd: Fix use-after-free in pid_show
	nvme-rdma: fix error code in nvme_rdma_setup_ctrl
	PM: hibernate: fix sparse warnings
	clocksource/drivers/timer-ti-dm: Select TIMER_OF
	x86/sev: Fix stack type check in vc_switch_off_ist()
	drm/msm: Fix potential NULL dereference in DPU SSPP
	drm/msm/dsi: fix wrong type in msm_dsi_host
	crypto: tcrypt - fix skcipher multi-buffer tests for 1420B blocks
	smackfs: use netlbl_cfg_cipsov4_del() for deleting cipso_v4_doi
	KVM: selftests: Fix nested SVM tests when built with clang
	libbpf: Fix memory leak in btf__dedup()
	bpftool: Avoid leaking the JSON writer prepared for program metadata
	libbpf: Fix overflow in BTF sanity checks
	libbpf: Fix BTF header parsing checks
	mt76: mt7615: mt7622: fix ibss and meshpoint
	s390/gmap: validate VMA in __gmap_zap()
	s390/gmap: don't unconditionally call pte_unmap_unlock() in __gmap_zap()
	s390/mm: validate VMA in PGSTE manipulation functions
	s390/mm: fix VMA and page table handling code in storage key handling functions
	s390/uv: fully validate the VMA before calling follow_page()
	KVM: s390: pv: avoid double free of sida page
	KVM: s390: pv: avoid stalls for kvm_s390_pv_init_vm
	irq: mips: avoid nested irq_enter()
	net: dsa: avoid refcount warnings when ->port_{fdb,mdb}_del returns error
	ARM: 9142/1: kasan: work around LPAE build warning
	ath10k: fix module load regression with iram-recovery feature
	block: ataflop: more blk-mq refactoring fixes
	blk-cgroup: synchronize blkg creation against policy deactivation
	libbpf: Fix off-by-one bug in bpf_core_apply_relo()
	tpm: fix Atmel TPM crash caused by too frequent queries
	tpm_tis_spi: Add missing SPI ID
	libbpf: Fix endianness detection in BPF_CORE_READ_BITFIELD_PROBED()
	tcp: don't free a FIN sk_buff in tcp_remove_empty_skb()
	tracing: Fix missing trace_boot_init_histograms kstrdup NULL checks
	cpufreq: intel_pstate: Fix cpu->pstate.turbo_freq initialization
	spi: spi-rpc-if: Check return value of rpcif_sw_init()
	samples/kretprobes: Fix return value if register_kretprobe() failed
	KVM: s390: Fix handle_sske page fault handling
	libertas_tf: Fix possible memory leak in probe and disconnect
	libertas: Fix possible memory leak in probe and disconnect
	wcn36xx: add proper DMA memory barriers in rx path
	wcn36xx: Fix discarded frames due to wrong sequence number
	bpf: Avoid races in __bpf_prog_run() for 32bit arches
	bpf: Fixes possible race in update_prog_stats() for 32bit arches
	wcn36xx: Channel list update before hardware scan
	drm/amdgpu: fix a potential memory leak in amdgpu_device_fini_sw()
	drm/amdgpu/gmc6: fix DMA mask from 44 to 40 bits
	selftests/bpf: Fix fd cleanup in sk_lookup test
	selftests/bpf: Fix memory leak in test_ima
	sctp: allow IP fragmentation when PLPMTUD enters Error state
	sctp: reset probe_timer in sctp_transport_pl_update
	sctp: subtract sctphdr len in sctp_transport_pl_hlen
	sctp: return true only for pathmtu update in sctp_transport_pl_toobig
	net: amd-xgbe: Toggle PLL settings during rate change
	ipmi: kcs_bmc: Fix a memory leak in the error handling path of 'kcs_bmc_serio_add_device()'
	nfp: fix NULL pointer access when scheduling dim work
	nfp: fix potential deadlock when canceling dim work
	net: phylink: avoid mvneta warning when setting pause parameters
	net: bridge: fix uninitialized variables when BRIDGE_CFM is disabled
	selftests: net: bridge: update IGMP/MLD membership interval value
	crypto: pcrypt - Delay write to padata->info
	selftests/bpf: Fix fclose/pclose mismatch in test_progs
	udp6: allow SO_MARK ctrl msg to affect routing
	ibmvnic: don't stop queue in xmit
	ibmvnic: Process crqs after enabling interrupts
	ibmvnic: delay complete()
	selftests: mptcp: fix proto type in link_failure tests
	skmsg: Lose offset info in sk_psock_skb_ingress
	cgroup: Fix rootcg cpu.stat guest double counting
	bpf: Fix propagation of bounds from 64-bit min/max into 32-bit and var_off.
	bpf: Fix propagation of signed bounds from 64-bit min/max into 32-bit.
	of: unittest: fix EXPECT text for gpio hog errors
	cpufreq: Fix parameter in parse_perf_domain()
	staging: r8188eu: fix memory leak in rtw_set_key
	arm64: dts: meson: sm1: add Ethernet PHY reset line for ODROID-C4/HC4
	iio: st_sensors: disable regulators after device unregistration
	RDMA/rxe: Fix wrong port_cap_flags
	ARM: dts: BCM5301X: Fix memory nodes names
	arm64: dts: broadcom: bcm4908: Fix UART clock name
	clk: mvebu: ap-cpu-clk: Fix a memory leak in error handling paths
	scsi: pm80xx: Fix lockup in outbound queue management
	scsi: qla2xxx: edif: Use link event to wake up app
	scsi: lpfc: Fix NVMe I/O failover to non-optimized path
	ARM: s3c: irq-s3c24xx: Fix return value check for s3c24xx_init_intc()
	arm64: dts: rockchip: Fix GPU register width for RK3328
	ARM: dts: qcom: msm8974: Add xo_board reference clock to DSI0 PHY
	RDMA/bnxt_re: Fix query SRQ failure
	arm64: dts: ti: k3-j721e-main: Fix "max-virtual-functions" in PCIe EP nodes
	arm64: dts: ti: k3-j721e-main: Fix "bus-range" upto 256 bus number for PCIe
	arm64: dts: ti: j7200-main: Fix "vendor-id"/"device-id" properties of pcie node
	arm64: dts: ti: j7200-main: Fix "bus-range" upto 256 bus number for PCIe
	arm64: dts: meson-g12a: Fix the pwm regulator supply properties
	arm64: dts: meson-g12b: Fix the pwm regulator supply properties
	arm64: dts: meson-sm1: Fix the pwm regulator supply properties
	bus: ti-sysc: Fix timekeeping_suspended warning on resume
	ARM: dts: at91: tse850: the emac<->phy interface is rmii
	arm64: dts: qcom: sc7180: Base dynamic CPU power coefficients in reality
	soc: qcom: llcc: Disable MMUHWT retention
	arm64: dts: qcom: sc7280: fix display port phy reg property
	scsi: dc395: Fix error case unwinding
	MIPS: loongson64: make CPU_LOONGSON64 depends on MIPS_FP_SUPPORT
	JFS: fix memleak in jfs_mount
	pinctrl: renesas: rzg2l: Fix missing port register 21h
	ASoC: wcd9335: Use correct version to initialize Class H
	arm64: dts: qcom: msm8916: Fix Secondary MI2S bit clock
	arm64: dts: renesas: beacon: Fix Ethernet PHY mode
	iommu/mediatek: Fix out-of-range warning with clang
	arm64: dts: qcom: pm8916: Remove wrong reg-names for rtc@6000
	iommu/dma: Fix sync_sg with swiotlb
	iommu/dma: Fix arch_sync_dma for map
	ALSA: hda: Reduce udelay() at SKL+ position reporting
	ALSA: hda: Use position buffer for SKL+ again
	ALSA: usb-audio: Fix possible race at sync of urb completions
	soundwire: debugfs: use controller id and link_id for debugfs
	power: reset: at91-reset: check properly the return value of devm_of_iomap
	scsi: ufs: core: Fix ufshcd_probe_hba() prototype to match the definition
	scsi: ufs: core: Stop clearing UNIT ATTENTIONS
	scsi: megaraid_sas: Fix concurrent access to ISR between IRQ polling and real interrupt
	scsi: pm80xx: Fix misleading log statement in pm8001_mpi_get_nvmd_resp()
	driver core: Fix possible memory leak in device_link_add()
	arm: dts: omap3-gta04a4: accelerometer irq fix
	ASoC: SOF: topology: do not power down primary core during topology removal
	iio: st_pressure_spi: Add missing entries SPI to device ID table
	soc/tegra: Fix an error handling path in tegra_powergate_power_up()
	memory: fsl_ifc: fix leak of irq and nand_irq in fsl_ifc_ctrl_probe
	clk: at91: check pmc node status before registering syscore ops
	powerpc/mem: Fix arch/powerpc/mm/mem.c:53:12: error: no previous prototype for 'create_section_mapping'
	video: fbdev: chipsfb: use memset_io() instead of memset()
	powerpc: fix unbalanced node refcount in check_kvm_guest()
	powerpc/paravirt: correct preempt debug splat in vcpu_is_preempted()
	serial: 8250_dw: Drop wrong use of ACPI_PTR()
	usb: gadget: hid: fix error code in do_config()
	power: supply: rt5033_battery: Change voltage values to µV
	power: supply: max17040: fix null-ptr-deref in max17040_probe()
	scsi: csiostor: Uninitialized data in csio_ln_vnp_read_cbfn()
	RDMA/mlx4: Return missed an error if device doesn't support steering
	usb: musb: select GENERIC_PHY instead of depending on it
	staging: most: dim2: do not double-register the same device
	staging: ks7010: select CRYPTO_HASH/CRYPTO_MICHAEL_MIC
	RDMA/core: Set sgtable nents when using ib_dma_virt_map_sg()
	dyndbg: make dyndbg a known cli param
	powerpc/perf: Fix cycles/instructions as PM_CYC/PM_INST_CMPL in power10
	pinctrl: renesas: checker: Fix off-by-one bug in drive register check
	ARM: dts: stm32: Reduce DHCOR SPI NOR frequency to 50 MHz
	ARM: dts: stm32: fix STUSB1600 Type-C irq level on stm32mp15xx-dkx
	ARM: dts: stm32: fix SAI sub nodes register range
	ARM: dts: stm32: fix AV96 board SAI2 pin muxing on stm32mp15
	ASoC: cs42l42: Always configure both ASP TX channels
	ASoC: cs42l42: Correct some register default values
	ASoC: cs42l42: Defer probe if request_threaded_irq() returns EPROBE_DEFER
	soc: qcom: rpmhpd: Make power_on actually enable the domain
	soc: qcom: socinfo: add two missing PMIC IDs
	iio: buffer: Fix double-free in iio_buffers_alloc_sysfs_and_mask()
	usb: typec: STUSB160X should select REGMAP_I2C
	iio: adis: do not disabe IRQs in 'adis_init()'
	soundwire: bus: stop dereferencing invalid slave pointer
	scsi: ufs: ufshcd-pltfrm: Fix memory leak due to probe defer
	scsi: lpfc: Wait for successful restart of SLI3 adapter during host sg_reset
	serial: imx: fix detach/attach of serial console
	usb: dwc2: drd: fix dwc2_force_mode call in dwc2_ovr_init
	usb: dwc2: drd: fix dwc2_drd_role_sw_set when clock could be disabled
	usb: dwc2: drd: reset current session before setting the new one
	powerpc/booke: Disable STRICT_KERNEL_RWX, DEBUG_PAGEALLOC and KFENCE
	usb: dwc3: gadget: Skip resizing EP's TX FIFO if already resized
	firmware: qcom_scm: Fix error retval in __qcom_scm_is_call_available()
	soc: qcom: rpmhpd: fix sm8350_mxc's peer domain
	soc: qcom: apr: Add of_node_put() before return
	arm64: dts: qcom: pmi8994: Fix "eternal"->"external" typo in WLED node
	arm64: dts: qcom: sdm845: Use RPMH_CE_CLK macro directly
	arm64: dts: qcom: sdm845: Fix Qualcomm crypto engine bus clock
	pinctrl: equilibrium: Fix function addition in multiple groups
	ASoC: topology: Fix stub for snd_soc_tplg_component_remove()
	phy: qcom-qusb2: Fix a memory leak on probe
	phy: ti: gmii-sel: check of_get_address() for failure
	phy: qcom-qmp: another fix for the sc8180x PCIe definition
	phy: qcom-snps: Correct the FSEL_MASK
	phy: Sparx5 Eth SerDes: Fix return value check in sparx5_serdes_probe()
	serial: xilinx_uartps: Fix race condition causing stuck TX
	clk: at91: sam9x60-pll: use DIV_ROUND_CLOSEST_ULL
	clk: at91: clk-master: check if div or pres is zero
	clk: at91: clk-master: fix prescaler logic
	HID: u2fzero: clarify error check and length calculations
	HID: u2fzero: properly handle timeouts in usb_submit_urb
	powerpc/nohash: Fix __ptep_set_access_flags() and ptep_set_wrprotect()
	powerpc/book3e: Fix set_memory_x() and set_memory_nx()
	powerpc/44x/fsp2: add missing of_node_put
	powerpc/xmon: fix task state output
	ALSA: oxfw: fix functional regression for Mackie Onyx 1640i in v5.14 or later
	iommu/dma: Fix incorrect error return on iommu deferred attach
	powerpc: Don't provide __kernel_map_pages() without ARCH_SUPPORTS_DEBUG_PAGEALLOC
	ASoC: cs42l42: Correct configuring of switch inversion from ts-inv
	RDMA/hns: Fix initial arm_st of CQ
	RDMA/hns: Modify the value of MAX_LP_MSG_LEN to meet hardware compatibility
	ASoC: rsnd: Fix an error handling path in 'rsnd_node_count()'
	serial: cpm_uart: Protect udbg definitions by CONFIG_SERIAL_CPM_CONSOLE
	virtio_ring: check desc == NULL when using indirect with packed
	vdpa/mlx5: Fix clearing of VIRTIO_NET_F_MAC feature bit
	mips: cm: Convert to bitfield API to fix out-of-bounds access
	power: supply: bq27xxx: Fix kernel crash on IRQ handler register error
	RDMA/core: Require the driver to set the IOVA correctly during rereg_mr
	apparmor: fix error check
	rpmsg: Fix rpmsg_create_ept return when RPMSG config is not defined
	mtd: rawnand: intel: Fix potential buffer overflow in probe
	nfsd: don't alloc under spinlock in rpc_parse_scope_id
	rtc: ds1302: Add SPI ID table
	rtc: ds1390: Add SPI ID table
	rtc: pcf2123: Add SPI ID table
	remoteproc: imx_rproc: Fix TCM io memory type
	i2c: i801: Use PCI bus rescan mutex to protect P2SB access
	dmaengine: idxd: move out percpu_ref_exit() to ensure it's outside submission
	rtc: mcp795: Add SPI ID table
	Input: ariel-pwrbutton - add SPI device ID table
	i2c: mediatek: fixing the incorrect register offset
	NFS: Default change_attr_type to NFS4_CHANGE_TYPE_IS_UNDEFINED
	NFS: Don't set NFS_INO_DATA_INVAL_DEFER and NFS_INO_INVALID_DATA
	NFS: Ignore the directory size when marking for revalidation
	NFS: Fix dentry verifier races
	pnfs/flexfiles: Fix misplaced barrier in nfs4_ff_layout_prepare_ds
	drm/bridge/lontium-lt9611uxc: fix provided connector suport
	drm/plane-helper: fix uninitialized variable reference
	PCI: aardvark: Don't spam about PIO Response Status
	PCI: aardvark: Fix preserving PCI_EXP_RTCTL_CRSSVE flag on emulated bridge
	opp: Fix return in _opp_add_static_v2()
	NFS: Fix deadlocks in nfs_scan_commit_list()
	sparc: Add missing "FORCE" target when using if_changed
	fs: orangefs: fix error return code of orangefs_revalidate_lookup()
	Input: st1232 - increase "wait ready" timeout
	drm/bridge: nwl-dsi: Add atomic_get_input_bus_fmts
	mtd: spi-nor: hisi-sfc: Remove excessive clk_disable_unprepare()
	PCI: uniphier: Serialize INTx masking/unmasking and fix the bit operation
	mtd: rawnand: arasan: Prevent an unsupported configuration
	mtd: core: don't remove debugfs directory if device is in use
	remoteproc: Fix a memory leak in an error handling path in 'rproc_handle_vdev()'
	rtc: rv3032: fix error handling in rv3032_clkout_set_rate()
	dmaengine: at_xdmac: call at_xdmac_axi_config() on resume path
	dmaengine: at_xdmac: fix AT_XDMAC_CC_PERID() macro
	dmaengine: stm32-dma: fix stm32_dma_get_max_width
	NFS: Fix up commit deadlocks
	NFS: Fix an Oops in pnfs_mark_request_commit()
	Fix user namespace leak
	auxdisplay: img-ascii-lcd: Fix lock-up when displaying empty string
	auxdisplay: ht16k33: Connect backlight to fbdev
	auxdisplay: ht16k33: Fix frame buffer device blanking
	soc: fsl: dpaa2-console: free buffer before returning from dpaa2_console_read
	netfilter: nfnetlink_queue: fix OOB when mac header was cleared
	dmaengine: dmaengine_desc_callback_valid(): Check for `callback_result`
	dmaengine: tegra210-adma: fix pm runtime unbalance
	dmanegine: idxd: fix resource free ordering on driver removal
	dmaengine: idxd: reconfig device after device reset command
	signal/sh: Use force_sig(SIGKILL) instead of do_group_exit(SIGKILL)
	m68k: set a default value for MEMORY_RESERVE
	watchdog: f71808e_wdt: fix inaccurate report in WDIOC_GETTIMEOUT
	ar7: fix kernel builds for compiler test
	scsi: target: core: Remove from tmr_list during LUN unlink
	scsi: qla2xxx: Relogin during fabric disturbance
	scsi: qla2xxx: Fix gnl list corruption
	scsi: qla2xxx: Turn off target reset during issue_lip
	scsi: qla2xxx: edif: Fix app start fail
	scsi: qla2xxx: edif: Fix app start delay
	scsi: qla2xxx: edif: Flush stale events and msgs on session down
	scsi: qla2xxx: edif: Increase ELS payload
	scsi: qla2xxx: edif: Fix EDIF bsg
	NFSv4: Fix a regression in nfs_set_open_stateid_locked()
	dmaengine: idxd: fix resource leak on dmaengine driver disable
	i2c: xlr: Fix a resource leak in the error handling path of 'xlr_i2c_probe()'
	gpio: realtek-otto: fix GPIO line IRQ offset
	xen-pciback: Fix return in pm_ctrl_init()
	nbd: fix max value for 'first_minor'
	nbd: fix possible overflow for 'first_minor' in nbd_dev_add()
	io-wq: fix max-workers not correctly set on multi-node system
	net: davinci_emac: Fix interrupt pacing disable
	kselftests/net: add missed icmp.sh test to Makefile
	kselftests/net: add missed setup_loopback.sh/setup_veth.sh to Makefile
	kselftests/net: add missed SRv6 tests
	kselftests/net: add missed vrf_strict_mode_test.sh test to Makefile
	kselftests/net: add missed toeplitz.sh/toeplitz_client.sh to Makefile
	ethtool: fix ethtool msg len calculation for pause stats
	openrisc: fix SMP tlb flush NULL pointer dereference
	net: vlan: fix a UAF in vlan_dev_real_dev()
	net: dsa: felix: fix broken VLAN-tagged PTP under VLAN-aware bridge
	ice: Fix replacing VF hardware MAC to existing MAC filter
	ice: Fix not stopping Tx queues for VFs
	kdb: Adopt scheduler's task classification
	ACPI: PMIC: Fix intel_pmic_regs_handler() read accesses
	PCI: j721e: Fix j721e_pcie_probe() error path
	nvdimm/btt: do not call del_gendisk() if not needed
	scsi: bsg: Fix errno when scsi_bsg_register_queue() fails
	scsi: ufs: ufshpb: Use proper power management API
	scsi: ufs: core: Fix NULL pointer dereference
	scsi: ufs: ufshpb: Properly handle max-single-cmd
	selftests: net: properly support IPv6 in GSO GRE test
	drm/nouveau/svm: Fix refcount leak bug and missing check against null bug
	nvdimm/pmem: cleanup the disk if pmem_release_disk() is yet assigned
	block/ataflop: use the blk_cleanup_disk() helper
	block/ataflop: add registration bool before calling del_gendisk()
	block/ataflop: provide a helper for cleanup up an atari disk
	ataflop: remove ataflop_probe_lock mutex
	PCI: Do not enable AtomicOps on VFs
	cpufreq: intel_pstate: Clear HWP desired on suspend/shutdown and offline
	net: phy: fix duplex out of sync problem while changing settings
	block: fix device_add_disk() kobject_create_and_add() error handling
	drm/ttm: remove ttm_bo_vm_insert_huge()
	bonding: Fix a use-after-free problem when bond_sysfs_slave_add() failed
	octeontx2-pf: select CONFIG_NET_DEVLINK
	ALSA: memalloc: Catch call with NULL snd_dma_buffer pointer
	mfd: core: Add missing of_node_put for loop iteration
	mfd: cpcap: Add SPI device ID table
	mfd: sprd: Add SPI device ID table
	mfd: altera-sysmgr: Fix a mistake caused by resource_size conversion
	ACPI: PM: Fix device wakeup power reference counting error
	libbpf: Fix lookup_and_delete_elem_flags error reporting
	selftests/bpf/xdp_redirect_multi: Put the logs to tmp folder
	selftests/bpf/xdp_redirect_multi: Use arping to accurate the arp number
	selftests/bpf/xdp_redirect_multi: Give tcpdump a chance to terminate cleanly
	selftests/bpf/xdp_redirect_multi: Limit the tests in netns
	drm: fb_helper: improve CONFIG_FB dependency
	Revert "drm/imx: Annotate dma-fence critical section in commit path"
	drm/amdgpu/powerplay: fix sysfs_emit/sysfs_emit_at handling
	can: etas_es58x: es58x_rx_err_msg(): fix memory leak in error path
	can: mcp251xfd: mcp251xfd_chip_start(): fix error handling for mcp251xfd_chip_rx_int_enable()
	mm/zsmalloc.c: close race window between zs_pool_dec_isolated() and zs_unregister_migration()
	zram: off by one in read_block_state()
	perf bpf: Add missing free to bpf_event__print_bpf_prog_info()
	llc: fix out-of-bound array index in llc_sk_dev_hash()
	nfc: pn533: Fix double free when pn533_fill_fragment_skbs() fails
	litex_liteeth: Fix a double free in the remove function
	arm64: arm64_ftr_reg->name may not be a human-readable string
	arm64: pgtable: make __pte_to_phys/__phys_to_pte_val inline functions
	bpf, sockmap: Remove unhash handler for BPF sockmap usage
	bpf, sockmap: Fix race in ingress receive verdict with redirect to self
	bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding
	bpf, sockmap: sk_skb data_end access incorrect when src_reg = dst_reg
	dmaengine: stm32-dma: fix burst in case of unaligned memory address
	dmaengine: stm32-dma: avoid 64-bit division in stm32_dma_get_max_width
	gve: Fix off by one in gve_tx_timeout()
	drm/i915/fb: Fix rounding error in subsampled plane size calculation
	init: make unknown command line param message clearer
	seq_file: fix passing wrong private data
	drm/amdgpu: fix uvd crash on Polaris12 during driver unloading
	net: dsa: mv88e6xxx: Don't support >1G speeds on 6191X on ports other than 10
	net/sched: sch_taprio: fix undefined behavior in ktime_mono_to_any
	net: hns3: fix ROCE base interrupt vector initialization bug
	net: hns3: fix pfc packet number incorrect after querying pfc parameters
	net: hns3: fix kernel crash when unload VF while it is being reset
	net: hns3: allow configure ETS bandwidth of all TCs
	net: stmmac: allow a tc-taprio base-time of zero
	net: ethernet: ti: cpsw_ale: Fix access to un-initialized memory
	net: marvell: mvpp2: Fix wrong SerDes reconfiguration order
	vsock: prevent unnecessary refcnt inc for nonblocking connect
	net/smc: fix sk_refcnt underflow on linkdown and fallback
	cxgb4: fix eeprom len when diagnostics not implemented
	selftests/net: udpgso_bench_rx: fix port argument
	thermal: int340x: fix build on 32-bit targets
	smb3: do not error on fsync when readonly
	ARM: 9155/1: fix early early_iounmap()
	ARM: 9156/1: drop cc-option fallbacks for architecture selection
	parisc: Fix backtrace to always include init funtion names
	parisc: Flush kernel data mapping in set_pte_at() when installing pte for user page
	MIPS: fix duplicated slashes for Platform file path
	MIPS: fix *-pkg builds for loongson2ef platform
	MIPS: Fix assembly error from MIPSr2 code used within MIPS_ISA_ARCH_LEVEL
	x86/mce: Add errata workaround for Skylake SKX37
	PCI/MSI: Move non-mask check back into low level accessors
	PCI/MSI: Destroy sysfs before freeing entries
	KVM: x86: move guest_pv_has out of user_access section
	posix-cpu-timers: Clear task::posix_cputimers_work in copy_process()
	irqchip/sifive-plic: Fixup EOI failed when masked
	f2fs: should use GFP_NOFS for directory inodes
	f2fs: include non-compressed blocks in compr_written_block
	f2fs: fix UAF in f2fs_available_free_memory
	ceph: fix mdsmap decode when there are MDS's beyond max_mds
	erofs: fix unsafe pagevec reuse of hooked pclusters
	drm/i915/guc: Fix blocked context accounting
	block: Hold invalidate_lock in BLKDISCARD ioctl
	block: Hold invalidate_lock in BLKZEROOUT ioctl
	block: Hold invalidate_lock in BLKRESETZONE ioctl
	ksmbd: Fix buffer length check in fsctl_validate_negotiate_info()
	ksmbd: don't need 8byte alignment for request length in ksmbd_check_message
	dmaengine: ti: k3-udma: Set bchan to NULL if a channel request fail
	dmaengine: ti: k3-udma: Set r/tchan or rflow to NULL if request fail
	dmaengine: bestcomm: fix system boot lockups
	net, neigh: Enable state migration between NUD_PERMANENT and NTF_USE
	9p/net: fix missing error check in p9_check_errors
	mm/filemap.c: remove bogus VM_BUG_ON
	memcg: prohibit unconditional exceeding the limit of dying tasks
	mm, oom: pagefault_out_of_memory: don't force global OOM for dying tasks
	mm, oom: do not trigger out_of_memory from the #PF
	mm, thp: lock filemap when truncating page cache
	mm, thp: fix incorrect unmap behavior for private pages
	mfd: dln2: Add cell for initializing DLN2 ADC
	video: backlight: Drop maximum brightness override for brightness zero
	bcache: fix use-after-free problem in bcache_device_free()
	bcache: Revert "bcache: use bvec_virt"
	PM: sleep: Avoid calling put_device() under dpm_list_mtx
	s390/cpumf: cpum_cf PMU displays invalid value after hotplug remove
	s390/cio: check the subchannel validity for dev_busid
	s390/tape: fix timer initialization in tape_std_assign()
	s390/ap: Fix hanging ioctl caused by orphaned replies
	s390/cio: make ccw_device_dma_* more robust
	remoteproc: elf_loader: Fix loading segment when is_iomem true
	remoteproc: Fix the wrong default value of is_iomem
	remoteproc: imx_rproc: Fix ignoring mapping vdev regions
	remoteproc: imx_rproc: Fix rsc-table name
	mtd: rawnand: fsmc: Fix use of SM ORDER
	mtd: rawnand: ams-delta: Keep the driver compatible with on-die ECC engines
	mtd: rawnand: xway: Keep the driver compatible with on-die ECC engines
	mtd: rawnand: mpc5121: Keep the driver compatible with on-die ECC engines
	mtd: rawnand: gpio: Keep the driver compatible with on-die ECC engines
	mtd: rawnand: pasemi: Keep the driver compatible with on-die ECC engines
	mtd: rawnand: orion: Keep the driver compatible with on-die ECC engines
	mtd: rawnand: plat_nand: Keep the driver compatible with on-die ECC engines
	mtd: rawnand: au1550nd: Keep the driver compatible with on-die ECC engines
	powerpc/vas: Fix potential NULL pointer dereference
	powerpc/bpf: Fix write protecting JIT code
	powerpc/32e: Ignore ESR in instruction storage interrupt handler
	powerpc/powernv/prd: Unregister OPAL_MSG_PRD2 notifier during module unload
	powerpc/security: Use a mutex for interrupt exit code patching
	powerpc/64s/interrupt: Fix check_return_regs_valid() false positive
	powerpc/pseries/mobility: ignore ibm, platform-facilities updates
	powerpc/85xx: fix timebase sync issue when CONFIG_HOTPLUG_CPU=n
	drm/sun4i: Fix macros in sun8i_csc.h
	PCI: Add PCI_EXP_DEVCTL_PAYLOAD_* macros
	PCI: aardvark: Fix PCIe Max Payload Size setting
	SUNRPC: Partial revert of commit 6f9f17287e
	drm/amd/display: Look at firmware version to determine using dmub on dcn21
	media: vidtv: move kfree(dvb) to vidtv_bridge_dev_release()
	cifs: fix memory leak of smb3_fs_context_dup::server_hostname
	ath10k: fix invalid dma_addr_t token assignment
	mmc: moxart: Fix null pointer dereference on pointer host
	selftests/x86/iopl: Adjust to the faked iopl CLI/STI usage
	selftests/bpf: Fix also no-alu32 strobemeta selftest
	arch/cc: Introduce a function to check for confidential computing features
	x86/sev: Add an x86 version of cc_platform_has()
	x86/sev: Make the #VC exception stacks part of the default stacks storage
	media: videobuf2: always set buffer vb2 pointer
	media: videobuf2-dma-sg: Fix buf->vb NULL pointer dereference
	Linux 5.15.3

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I09574eb6b4fbe930bd13f932cc618846972fcc27
2021-11-19 15:38:07 +01:00
Zhang Qiao
3869eecf05 kernel/sched: Fix sched_fork() access an invalid sched_task_group
[ Upstream commit 4ef0c5c6b5ba1f38f0ea1cedad0cad722f00c14a ]

There is a small race between copy_process() and sched_fork()
where child->sched_task_group point to an already freed pointer.

	parent doing fork()      | someone moving the parent
				 | to another cgroup
  -------------------------------+-------------------------------
  copy_process()
      + dup_task_struct()<1>
				  parent move to another cgroup,
				  and free the old cgroup. <2>
      + sched_fork()
	+ __set_task_cpu()<3>
	+ task_fork_fair()
	  + sched_slice()<4>

In the worst case, this bug can lead to "use-after-free" and
cause panic as shown above:

  (1) parent copy its sched_task_group to child at <1>;

  (2) someone move the parent to another cgroup and free the old
      cgroup at <2>;

  (3) the sched_task_group and cfs_rq that belong to the old cgroup
      will be accessed at <3> and <4>, which cause a panic:

  [] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
  [] PGD 8000001fa0a86067 P4D 8000001fa0a86067 PUD 2029955067 PMD 0
  [] Oops: 0000 [#1] SMP PTI
  [] CPU: 7 PID: 648398 Comm: ebizzy Kdump: loaded Tainted: G           OE    --------- -  - 4.18.0.x86_64+ #1
  [] RIP: 0010:sched_slice+0x84/0xc0

  [] Call Trace:
  []  task_fork_fair+0x81/0x120
  []  sched_fork+0x132/0x240
  []  copy_process.part.5+0x675/0x20e0
  []  ? __handle_mm_fault+0x63f/0x690
  []  _do_fork+0xcd/0x3b0
  []  do_syscall_64+0x5d/0x1d0
  []  entry_SYSCALL_64_after_hwframe+0x65/0xca
  [] RIP: 0033:0x7f04418cd7e1

Between cgroup_can_fork() and cgroup_post_fork(), the cgroup
membership and thus sched_task_group can't change. So update child's
sched_task_group at sched_post_fork() and move task_fork() and
__set_task_cpu() (where accees the sched_task_group) from sched_fork()
to sched_post_fork().

Fixes: 8323f26ce3 ("sched: Fix race in task_group")
Signed-off-by: Zhang Qiao <zhangqiao22@huawei.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lkml.kernel.org/r/20210915064030.2231-1-zhangqiao22@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18 19:16:32 +01:00
Stephen Dickey
a027f0d72e ANDROID: sched: add hook to set_cpus_allowed_ptr_locked
It is necessary to update the valid mask to implement CPU Pause
from a vendor module. Introduce a hook to allow this.

Bug: 205164003
Change-Id: Ic99b74d17f361453b044e115a54698e566db13b6
Signed-off-by: Stephen Dickey <quic_dickey@quicinc.com>
2021-11-09 00:42:19 +00:00
Stephen Dickey
ca2177d4a0 ANDROID: sched: allow access to critical common code for CPU Pause
Allow module access to critical functionality to support
CPU Pause from a vendor module.

Bug: 205164003
Change-Id: Ia04608dae076469e265071f8e0d53aee66d49cfa
Signed-off-by: Stephen Dickey <quic_dickey@quicinc.com>
2021-11-09 00:42:10 +00:00
Stephen Dickey
72a288144d ANDROID: sched: support pick_migrate_task in common kernel
__pick_migrate_task() was present in 5.10 and removed in
5.15 in favor of the balance_push concept.

Restore this function so that the ability to pick a task to migrate
across all scheduling classes can be used by a vendor module.

Function Removed In commit 1cf12e08bc
sched/hotplug: Consolidate task migration on CPU unplug

Bug: 205164003
Change-Id: I56ecd96c32b49495132daefbfc106568ab84e528
Signed-off-by: Stephen Dickey <quic_dickey@quicinc.com>
2021-11-09 00:41:28 +00:00
Greg Kroah-Hartman
c20e72b4f2 Merge 87066fdd2e ("Revert "mm/secretmem: use refcount_t instead of atomic_t"") into android-mainline
Steps on the way to 5.15-rc7

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ife9745eb5ca183ce2b441a293b7448c75c9f5612
2021-10-25 10:22:22 +02:00
Sai Harshini Nimmala
4cd67c09b6 ANDROID: sched: Export symbol for scheduler vendor module
Export symbol for balance_push_callback because it is
included in a scheduler header file causing it to be visible
to scheduler vendor modules.

Bug: 203580415
Signed-off-by: Sai Harshini Nimmala <snimmala@codeaurora.org>
Change-Id: Ib482a4ef4d7810595160e25fa4be249605cc3476
2021-10-20 15:22:24 +00:00
Sai Harshini Nimmala
fc6bf56229 ANDROID: sched: Export rq lock symbols
Export the double_rq_lock(), raw_spin_rq_lock_nested()
and raw_spin_rq_unlock() symbols used in,
a) scheduler vendor hooks.
b) included in scheduler header file visible to
vendor modules.

Bug: 203580415
Signed-off-by: Sai Harshini Nimmala <snimmala@codeaurora.org>
Change-Id: I6dca36ba7b7b0cd0d5f83fcd08633acc1ab72944
2021-10-20 15:21:40 +00:00
Woody Lin
63acd42c0d sched/scs: Reset the shadow stack when idle_task_exit
Commit f1a0a376ca ("sched/core: Initialize the idle task with
preemption disabled") removed the init_idle() call from
idle_thread_get(). This was the sole call-path on hotplug that resets
the Shadow Call Stack (scs) Stack Pointer (sp).

Not resetting the scs-sp leads to scs overflow after enough hotplug
cycles. Therefore add an explicit scs_task_reset() to the hotplug code
to make sure the scs-sp does get reset on hotplug.

Fixes: f1a0a376ca ("sched/core: Initialize the idle task with preemption disabled")
Signed-off-by: Woody Lin <woodylin@google.com>
[peterz: Changelog]
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Link: https://lore.kernel.org/r/20211012083521.973587-1-woodylin@google.com
2021-10-19 17:46:11 +02:00
Martin Liu
6a878921fc ANDROID: sched: move blocked reason trace point to cover all class
Now, we only export CFS taks' blocked reasons but it's
important and useful to know other class' blocked
reasons such as RT tasks.

Move the blocked reason trace point to where the scheduler
core layer and before the task's state moves to the waking
state. Thus, we could cover all the sched classes.

Bug: 203080186
Test: check traces
Signed-off-by: Martin Liu <liumartin@google.com>
Change-Id: Ic61865642d852d0127cdcf474adf8c06e4c2d570
(cherry picked from commit 44447dec6e)
2021-10-19 10:13:26 +08:00
Shaleen Agrawal
5cfe879a2a ANDROID: sched: Add export symbols for sched features
Export symbols needed to implement vendor scheduler value-adds to modify
sched features dynamically at runtime, such as disabling TTWU_QUEUE.

Bug: 177050087
Change-Id: Ibe14d2019403be68b7ceeee47425b2473ccb51fe
Signed-off-by: Shaleen Agrawal <shalagra@codeaurora.org>
2021-10-18 08:55:35 -07:00
Shaleen Agrawal
4cdd5274cc ANDROID: sched: Add export symbol resched_curr
Add export symbol resched_curr to enable scheduler value add.

Bug: 176077958
Change-Id: I9c26b4d8738d6fd7d1067cb164a30b0228c5a301
Signed-off-by: Shaleen Agrawal <shalagra@codeaurora.org>
2021-10-18 15:12:41 +00:00
lijianzhong
bc70904edc ANDROID: sched: Add vendor hooks for sched.
Add vendor hooks in scheduler to support OEM's value adds.

Bug: 183674818
Signed-off-by: lijianzhong <lijianzhong@xiaomi.com>
Change-Id: I8415958749948b3702e411f835c227ad4f8d8e92
Signed-off-by: Shaleen Agrawal <shalagra@codeaurora.org>
2021-10-18 15:11:09 +00:00
Pavankumar Kondeti
30c8f87544 ANDROID: sched: Add android_rvh_cpu_cgroup_online hook
Add a restricted vendor hook to notify that a cpu controller
cgroup is online.

Bug: 200103201
Change-Id: I7d37f38c24ce146eabb4716a959aee703d71926e
Signed-off-by: Pavankumar Kondeti <quic_pkondeti@quicinc.com>
Signed-off-by: Ashay Jaiswal <quic_ashayj@quicinc.com>
2021-09-22 23:17:15 +00:00
Shaleen Agrawal
99545883fb ANDROID: Sched: Add hooks for scheduler
Add vendors hooks for to facilitate various scheduler value adds.

Bug: 200103201
Change-Id: I5d488ae78ce05f81e6c73b69c56128b065647fec
Signed-off-by: Shaleen Agrawal <shalagra@codeaurora.org>
Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org>
2021-09-22 23:16:57 +00:00
Ashay Jaiswal
ca60d78542 Revert "Revert "ANDROID: Sched: Add restricted vendor hooks for scheduler""
This reverts commit 627a494ef3.
Reverting commit to add the vendor hooks back, this is to facilitate
various scheduler value adds.

Bug: 200103201
Change-Id: Ifbd7d235f863e01848c22b8185c4ec94da8c862c
Signed-off-by: Ashay Jaiswal <quic_ashayj@quicinc.com>
2021-09-22 23:16:25 +00:00
Greg Kroah-Hartman
e74ef7cf8f Merge tag 'v5.15-rc1' into android-mainline
Linux 5.15-rc1

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ib4933c598d27b18268860e7549966ef7724652fc
2021-09-16 09:51:19 +02:00
Linus Torvalds
56c244382f Merge tag 'sched_urgent_for_v5.15_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Borislav Petkov:

 - Make sure the idle timer expires in hardirq context, on PREEMPT_RT

 - Make sure the run-queue balance callback is invoked only on the
   outgoing CPU

* tag 'sched_urgent_for_v5.15_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched: Prevent balance_push() on remote runqueues
  sched/idle: Make the idle timer expire in hard interrupt context
2021-09-12 11:37:41 -07:00
Thomas Gleixner
868ad33bfa sched: Prevent balance_push() on remote runqueues
sched_setscheduler() and rt_mutex_setprio() invoke the run-queue balance
callback after changing priorities or the scheduling class of a task. The
run-queue for which the callback is invoked can be local or remote.

That's not a problem for the regular rq::push_work which is serialized with
a busy flag in the run-queue struct, but for the balance_push() work which
is only valid to be invoked on the outgoing CPU that's wrong. It not only
triggers the debug warning, but also leaves the per CPU variable push_work
unprotected, which can result in double enqueues on the stop machine list.

Remove the warning and validate that the function is invoked on the
outgoing CPU.

Fixes: ae79270232 ("sched: Optimize finish_lock_switch()")
Reported-by: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/87zgt1hdw7.ffs@tglx
2021-09-09 11:27:23 +02:00
Greg Kroah-Hartman
883f370b3b Merge e5e726f7bb ("Merge tag 'locking-core-2021-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip") into android-mainline
Steps on the way to 5.15-rc1

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I15ca29e0126c6b134a26bad932dbb3e6d779f860
2021-09-03 15:24:31 +02:00