Changes in 5.4.51
io_uring: make sure async workqueue is canceled on exit
mm: fix swap cache node allocation mask
EDAC/amd64: Read back the scrub rate PCI register on F15h
usbnet: smsc95xx: Fix use-after-free after removal
sched/debug: Make sd->flags sysctl read-only
mm/slub.c: fix corrupted freechain in deactivate_slab()
mm/slub: fix stack overruns with SLUB_STATS
rxrpc: Fix race between incoming ACK parser and retransmitter
usb: usbtest: fix missing kfree(dev->buf) in usbtest_disconnect
tools lib traceevent: Add append() function helper for appending strings
tools lib traceevent: Handle __attribute__((user)) in field names
s390/debug: avoid kernel warning on too large number of pages
nvme-multipath: set bdi capabilities once
nvme-multipath: fix deadlock between ana_work and scan_work
nvme-multipath: fix deadlock due to head->lock
nvme-multipath: fix bogus request queue reference put
kgdb: Avoid suspicious RCU usage warning
selftests: tpm: Use /bin/sh instead of /bin/bash
tpm: Fix TIS locality timeout problems
crypto: af_alg - fix use-after-free in af_alg_accept() due to bh_lock_sock()
drm/msm/dpu: fix error return code in dpu_encoder_init
rxrpc: Fix afs large storage transmission performance drop
RDMA/counter: Query a counter before release
cxgb4: use unaligned conversion for fetching timestamp
cxgb4: parse TC-U32 key values and masks natively
cxgb4: fix endian conversions for L4 ports in filters
cxgb4: use correct type for all-mask IP address comparison
cxgb4: fix SGE queue dump destination buffer context
hwmon: (max6697) Make sure the OVERT mask is set correctly
hwmon: (acpi_power_meter) Fix potential memory leak in acpi_power_meter_add()
thermal/drivers/mediatek: Fix bank number settings on mt8183
thermal/drivers/rcar_gen3: Fix undefined temperature if negative
nfsd4: fix nfsdfs reference count loop
nfsd: fix nfsdfs inode reference count leak
drm: sun4i: hdmi: Remove extra HPD polling
virtio-blk: free vblk-vqs in error path of virtblk_probe()
SMB3: Honor 'posix' flag for multiuser mounts
nvme: fix identify error status silent ignore
nvme: fix a crash in nvme_mpath_add_disk
samples/vfs: avoid warning in statx override
i2c: algo-pca: Add 0x78 as SCL stuck low status for PCA9665
i2c: mlxcpld: check correct size of maximum RECV_LEN packet
spi: spi-fsl-dspi: Fix external abort on interrupt in resume or exit paths
nfsd: apply umask on fs without ACL support
Revert "ALSA: usb-audio: Improve frames size computation"
SMB3: Honor 'seal' flag for multiuser mounts
SMB3: Honor persistent/resilient handle flags for multiuser mounts
SMB3: Honor lease disabling for multiuser mounts
SMB3: Honor 'handletimeout' flag for multiuser mounts
cifs: Fix the target file was deleted when rename failed.
MIPS: lantiq: xway: sysctrl: fix the GPHY clock alias names
MIPS: Add missing EHB in mtc0 -> mfc0 sequence for DSPen
drm/amd/display: Only revalidate bandwidth on medium and fast updates
drm/amdgpu: use %u rather than %d for sclk/mclk
drm/amdgpu/atomfirmware: fix vram_info fetching for renoir
dma-buf: Move dma_buf_release() from fops to dentry_ops
irqchip/gic: Atomically update affinity
mm, compaction: fully assume capture is not NULL in compact_zone_order()
mm, compaction: make capture control handling safe wrt interrupts
x86/resctrl: Fix memory bandwidth counter width for AMD
dm zoned: assign max_io_len correctly
efi: Make it possible to disable efivar_ssdt entirely
Linux 5.4.51
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I4935ab2080c7253136c60c413af111e995c0d7a6
[ Upstream commit c3eeaae9fd ]
Something changed recently to uncover this warning:
samples/vfs/test-statx.c:24:15: warning: `struct foo' declared inside parameter list will not be visible outside of this definition or declaration
24 | #define statx foo
| ^~~
Which is due the use of "struct statx" (here, "struct foo") in a function
prototype argument list before it has been defined:
int
# 56 "/usr/include/x86_64-linux-gnu/bits/statx-generic.h"
foo
# 56 "/usr/include/x86_64-linux-gnu/bits/statx-generic.h" 3 4
(int __dirfd, const char *__restrict __path, int __flags,
unsigned int __mask, struct
# 57 "/usr/include/x86_64-linux-gnu/bits/statx-generic.h"
foo
# 57 "/usr/include/x86_64-linux-gnu/bits/statx-generic.h" 3 4
*__restrict __buf)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (2, 5)));
Add explicit struct before #include to avoid warning.
Fixes: f1b5618e01 ("vfs: Add a sample program for the new mount API")
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Miklos Szeredi <mszeredi@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: David Howells <dhowells@redhat.com>
Link: http://lkml.kernel.org/r/202006282213.C516EA6@keescook
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Changes in 5.4.50
block/bio-integrity: don't free 'buf' if bio_integrity_add_page() failed
enetc: Fix tx rings bitmap iteration range, irq handling
geneve: allow changing DF behavior after creation
ibmveth: Fix max MTU limit
mld: fix memory leak in ipv6_mc_destroy_dev()
mvpp2: ethtool rxtx stats fix
net: bridge: enfore alignment for ethernet address
net: core: reduce recursion limit value
net: Do not clear the sock TX queue in sk_set_socket()
net: fix memleak in register_netdevice()
net: Fix the arp error in some cases
net: increment xmit_recursion level in dev_direct_xmit()
net: usb: ax88179_178a: fix packet alignment padding
openvswitch: take into account de-fragmentation/gso_size in execute_check_pkt_len
rocker: fix incorrect error handling in dma_rings_init
rxrpc: Fix notification call on completion of discarded calls
sctp: Don't advertise IPv4 addresses if ipv6only is set on the socket
tcp: don't ignore ECN CWR on pure ACK
tcp: grow window for OOO packets only for SACK flows
tg3: driver sleeps indefinitely when EEH errors exceed eeh_max_freezes
ip6_gre: fix use-after-free in ip6gre_tunnel_lookup()
net: phy: Check harder for errors in get_phy_id()
ip_tunnel: fix use-after-free in ip_tunnel_lookup()
sch_cake: don't try to reallocate or unshare skb unconditionally
sch_cake: don't call diffserv parsing code when it is not needed
sch_cake: fix a few style nits
tcp_cubic: fix spurious HYSTART_DELAY exit upon drop in min RTT
Revert "i2c: tegra: Fix suspending in active runtime PM state"
btrfs: fix a block group ref counter leak after failure to remove block group
net: sched: export __netdev_watchdog_up()
fix a braino in "sparc32: fix register window handling in genregs32_[gs]et()"
ALSA: usb-audio: Fix potential use-after-free of streams
binder: fix null deref of proc->context
USB: ohci-sm501: Add missed iounmap() in remove
usb: dwc2: Postponed gadget registration to the udc class driver
usb: add USB_QUIRK_DELAY_INIT for Logitech C922
USB: ehci: reopen solution for Synopsys HC bug
usb: host: xhci-mtk: avoid runtime suspend when removing hcd
xhci: Poll for U0 after disabling USB2 LPM
usb: host: ehci-exynos: Fix error check in exynos_ehci_probe()
usb: typec: tcpci_rt1711h: avoid screaming irq causing boot hangs
ALSA: usb-audio: Add implicit feedback quirk for SSL2+.
ALSA: usb-audio: add quirk for Denon DCD-1500RE
ALSA: usb-audio: add quirk for Samsung USBC Headset (AKG)
ALSA: usb-audio: Fix OOB access of mixer element list
usb: cdns3: trace: using correct dir value
usb: cdns3: ep0: fix the test mode set incorrectly
usb: cdns3: ep0: add spinlock for cdns3_check_new_setup
scsi: qla2xxx: Keep initiator ports after RSCN
scsi: zfcp: Fix panic on ERP timeout for previously dismissed ERP action
cifs: Fix cached_fid refcnt leak in open_shroot
cifs/smb3: Fix data inconsistent when punch hole
cifs/smb3: Fix data inconsistent when zero file range
xhci: Fix incorrect EP_STATE_MASK
xhci: Fix enumeration issue when setting max packet size for FS devices.
xhci: Return if xHCI doesn't support LPM
cdc-acm: Add DISABLE_ECHO quirk for Microchip/SMSC chip
loop: replace kill_bdev with invalidate_bdev
IB/mad: Fix use after free when destroying MAD agent
IB/hfi1: Fix module use count flaw due to leftover module put calls
bus: ti-sysc: Flush posted write on enable and disable
bus: ti-sysc: Ignore clockactivity unless specified as a quirk
ARM: OMAP2+: Fix legacy mode dss_reset
xfrm: Fix double ESP trailer insertion in IPsec crypto offload.
ASoC: q6asm: handle EOS correctly
efi/tpm: Verify event log header before parsing
efi/esrt: Fix reference count leak in esre_create_sysfs_entry.
ASoc: q6afe: add support to get port direction
ASoC: qcom: common: set correct directions for dailinks
regualtor: pfuze100: correct sw1a/sw2 on pfuze3000
RDMA/siw: Fix pointer-to-int-cast warning in siw_rx_pbl()
ASoC: fsl_ssi: Fix bclk calculation for mono channel
samples/bpf: xdp_redirect_cpu: Set MAX_CPUS according to NR_CPUS
bpf, xdp, samples: Fix null pointer dereference in *_user code
ARM: dts: am335x-pocketbeagle: Fix mmc0 Write Protect
ARM: dts: Fix duovero smsc interrupt for suspend
x86/resctrl: Fix a NULL vs IS_ERR() static checker warning in rdt_cdp_peer_get()
regmap: Fix memory leak from regmap_register_patch
devmap: Use bpf_map_area_alloc() for allocating hash buckets
bpf: Don't return EINVAL from {get,set}sockopt when optlen > PAGE_SIZE
ARM: dts: NSP: Correct FA2 mailbox node
rxrpc: Fix handling of rwind from an ACK packet
RDMA/rvt: Fix potential memory leak caused by rvt_alloc_rq
RDMA/qedr: Fix KASAN: use-after-free in ucma_event_handler+0x532
RDMA/cma: Protect bind_list and listen_list while finding matching cm id
ASoC: rockchip: Fix a reference count leak.
s390/qeth: fix error handling for isolation mode cmds
RDMA/mad: Fix possible memory leak in ib_mad_post_receive_mads()
selftests/net: report etf errors correctly
iommu/vt-d: Enable PCI ACS for platform opt in hint
iommu/vt-d: Update scalable mode paging structure coherency
net: qed: fix left elements count calculation
net: qed: fix async event callbacks unregistering
net: qede: stop adding events on an already destroyed workqueue
net: qed: fix NVMe login fails over VFs
net: qed: fix excessive QM ILT lines consumption
net: qede: fix PTP initialization on recovery
net: qede: fix use-after-free on recovery and AER handling
cxgb4: move handling L2T ARP failures to caller
ARM: imx5: add missing put_device() call in imx_suspend_alloc_ocram()
scsi: lpfc: Avoid another null dereference in lpfc_sli4_hba_unset()
usb: gadget: udc: Potential Oops in error handling code
usb: renesas_usbhs: getting residue from callback_result
nvme: don't protect ns mutation with ns->head->lock
netfilter: ipset: fix unaligned atomic access
net: bcmgenet: use hardware padding of runt frames
clk: sifive: allocate sufficient memory for struct __prci_data
i2c: fsi: Fix the port number field in status register
i2c: core: check returned size of emulated smbus block read
afs: Fix storage of cell names
sched/deadline: Initialize ->dl_boosted
sched/core: Fix PI boosting between RT and DEADLINE tasks
sata_rcar: handle pm_runtime_get_sync failure cases
ata/libata: Fix usage of page address by page_address in ata_scsi_mode_select_xlat function
drm/amd/display: Use kfree() to free rgb_user in calculate_user_regamma_ramp()
riscv/atomic: Fix sign extension for RV64I
hwrng: ks-sa - Fix runtime PM imbalance on error
ibmvnic: Harden device login requests
net: alx: fix race condition in alx_remove
test_objagg: Fix potential memory leak in error handling
pinctrl: qcom: spmi-gpio: fix warning about irq chip reusage
pinctrl: tegra: Use noirq suspend/resume callbacks
s390/ptrace: pass invalid syscall numbers to tracing
s390/ptrace: fix setting syscall number
s390/vdso: Use $(LD) instead of $(CC) to link vDSO
s390/vdso: fix vDSO clock_getres()
arm64: sve: Fix build failure when ARM64_SVE=y and SYSCTL=n
kbuild: improve cc-option to clean up all temporary files
recordmcount: support >64k sections
kprobes: Suppress the suspicious RCU warning on kprobes
blktrace: break out of blktrace setup on concurrent calls
block: update hctx map when use multiple maps
RISC-V: Don't allow write+exec only page mapping request in mmap
ALSA: hda: Add NVIDIA codec IDs 9a & 9d through a0 to patch table
ALSA: hda/realtek - Add quirk for MSI GE63 laptop
ALSA: hda/realtek: Add mute LED and micmute LED support for HP systems
ACPI: sysfs: Fix pm_profile_attr type
ACPI: configfs: Disallow loading ACPI tables when locked down
erofs: fix partially uninitialized misuse in z_erofs_onlinepage_fixup
KVM: X86: Fix MSR range of APIC registers in X2APIC mode
KVM: nVMX: Plumb L2 GPA through to PML emulation
KVM: VMX: Stop context switching MSR_IA32_UMWAIT_CONTROL
x86/cpu: Use pinning mask for CR4 bits needing to be 0
x86/asm/64: Align start of __clear_user() loop to 16-bytes
btrfs: fix bytes_may_use underflow when running balance and scrub in parallel
btrfs: fix data block group relocation failure due to concurrent scrub
btrfs: check if a log root exists before locking the log_mutex on unlink
btrfs: fix failure of RWF_NOWAIT write into prealloc extent beyond eof
mm/slab: use memzero_explicit() in kzfree()
ocfs2: avoid inode removal while nfsd is accessing it
ocfs2: load global_inode_alloc
ocfs2: fix value of OCFS2_INVALID_SLOT
ocfs2: fix panic on nfs server over ocfs2
mm/memcontrol.c: add missed css_put()
arm64: perf: Report the PC value in REGS_ABI_32 mode
arm64: dts: imx8mm-evk: correct ldo1/ldo2 voltage range
arm64: dts: imx8mn-ddr4-evk: correct ldo1/ldo2 voltage range
tracing: Fix event trigger to accept redundant spaces
ring-buffer: Zero out time extend if it is nested and not absolute
drm/amd: fix potential memleak in err branch
drm: rcar-du: Fix build error
drm/radeon: fix fb_div check in ni_init_smc_spll_table()
drm/amdgpu: add fw release for sdma v5_0
Staging: rtl8723bs: prevent buffer overflow in update_sta_support_rate()
sunrpc: fixed rollback in rpc_gssd_dummy_populate()
SUNRPC: Properly set the @subbuf parameter of xdr_buf_subsegment()
pNFS/flexfiles: Fix list corruption if the mirror count changes
NFSv4 fix CLOSE not waiting for direct IO compeletion
xprtrdma: Fix handling of RDMA_ERROR replies
dm writecache: correct uncommitted_block when discarding uncommitted entry
dm writecache: add cond_resched to loop in persistent_memory_claim()
xfs: add agf freeblocks verify in xfs_agf_verify
Revert "tty: hvc: Fix data abort due to race in hvc_open"
Linux 5.4.50
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I68d8fdc951541cf115447bda262de0d95eafce87
[ Upstream commit 6903cdae9f ]
Memset on the pointer right after malloc can cause a NULL pointer
deference if it failed to allocate memory. A simple fix is to
replace malloc()/memset() pair with a simple call to calloc().
Fixes: 0fca931a6f ("samples/bpf: program demonstrating access to xdp_rxq_info")
Signed-off-by: Gaurav Singh <gaurav1086@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Changes in 5.4.44
ax25: fix setsockopt(SO_BINDTODEVICE)
dpaa_eth: fix usage as DSA master, try 3
net: don't return invalid table id error when we fall back to PF_UNSPEC
net: dsa: mt7530: fix roaming from DSA user ports
net: ethernet: ti: cpsw: fix ASSERT_RTNL() warning during suspend
__netif_receive_skb_core: pass skb by reference
net: inet_csk: Fix so_reuseport bind-address cache in tb->fast*
net: ipip: fix wrong address family in init error path
net/mlx5: Add command entry handling completion
net: mvpp2: fix RX hashing for non-10G ports
net: nlmsg_cancel() if put fails for nhmsg
net: qrtr: Fix passing invalid reference to qrtr_local_enqueue()
net: revert "net: get rid of an signed integer overflow in ip_idents_reserve()"
net sched: fix reporting the first-time use timestamp
net/tls: fix race condition causing kernel panic
nexthop: Fix attribute checking for groups
r8152: support additional Microsoft Surface Ethernet Adapter variant
sctp: Don't add the shutdown timer if its already been added
sctp: Start shutdown on association restart if in SHUTDOWN-SENT state and socket is closed
tipc: block BH before using dst_cache
net/mlx5e: kTLS, Destroy key object after destroying the TIS
net/mlx5e: Fix inner tirs handling
net/mlx5: Fix memory leak in mlx5_events_init
net/mlx5e: Update netdev txq on completions during closure
net/mlx5: Fix error flow in case of function_setup failure
net/mlx5: Annotate mutex destroy for root ns
net/tls: fix encryption error checking
net/tls: free record only on encryption error
net: sun: fix missing release regions in cas_init_one().
net/mlx4_core: fix a memory leak bug.
mlxsw: spectrum: Fix use-after-free of split/unsplit/type_set in case reload fails
ARM: dts: rockchip: fix phy nodename for rk3228-evb
ARM: dts: rockchip: fix phy nodename for rk3229-xms6
arm64: dts: rockchip: fix status for &gmac2phy in rk3328-evb.dts
arm64: dts: rockchip: swap interrupts interrupt-names rk3399 gpu node
ARM: dts: rockchip: swap clock-names of gpu nodes
ARM: dts: rockchip: fix pinctrl sub nodename for spi in rk322x.dtsi
gpio: tegra: mask GPIO IRQs during IRQ shutdown
ALSA: usb-audio: add mapping for ASRock TRX40 Creator
net: microchip: encx24j600: add missed kthread_stop
gfs2: move privileged user check to gfs2_quota_lock_check
gfs2: Grab glock reference sooner in gfs2_add_revoke
drm/amdgpu: drop unnecessary cancel_delayed_work_sync on PG ungate
drm/amd/powerplay: perform PG ungate prior to CG ungate
drm/amdgpu: Use GEM obj reference for KFD BOs
cachefiles: Fix race between read_waiter and read_copier involving op->to_do
usb: dwc3: pci: Enable extcon driver for Intel Merrifield
usb: phy: twl6030-usb: Fix a resource leak in an error handling path in 'twl6030_usb_probe()'
usb: gadget: legacy: fix redundant initialization warnings
net: freescale: select CONFIG_FIXED_PHY where needed
IB/i40iw: Remove bogus call to netdev_master_upper_dev_get()
riscv: stacktrace: Fix undefined reference to `walk_stackframe'
clk: ti: am33xx: fix RTC clock parent
csky: Fixup msa highest 3 bits mask
csky: Fixup perf callchain unwind
csky: Fixup remove duplicate irq_disable
hwmon: (nct7904) Fix incorrect range of temperature limit registers
cifs: Fix null pointer check in cifs_read
csky: Fixup raw_copy_from_user()
samples: bpf: Fix build error
drivers: net: hamradio: Fix suspicious RCU usage warning in bpqether.c
Input: usbtouchscreen - add support for BonXeon TP
Input: evdev - call input_flush_device() on release(), not flush()
Input: xpad - add custom init packet for Xbox One S controllers
Input: dlink-dir685-touchkeys - fix a typo in driver name
Input: i8042 - add ThinkPad S230u to i8042 reset list
Input: synaptics-rmi4 - really fix attn_data use-after-free
Input: synaptics-rmi4 - fix error return code in rmi_driver_probe()
ARM: 8970/1: decompressor: increase tag size
ARM: uaccess: consolidate uaccess asm to asm/uaccess-asm.h
ARM: uaccess: integrate uaccess_save and uaccess_restore
ARM: uaccess: fix DACR mismatch with nested exceptions
gpio: exar: Fix bad handling for ida_simple_get error path
arm64: dts: mt8173: fix vcodec-enc clock
soc: mediatek: cmdq: return send msg error code
gpu/drm: Ingenic: Fix opaque pointer casted to wrong type
IB/qib: Call kobject_put() when kobject_init_and_add() fails
ARM: dts/imx6q-bx50v3: Set display interface clock parents
ARM: dts: bcm2835-rpi-zero-w: Fix led polarity
ARM: dts: bcm: HR2: Fix PPI interrupt types
mmc: block: Fix use-after-free issue for rpmb
gpio: pxa: Fix return value of pxa_gpio_probe()
gpio: bcm-kona: Fix return value of bcm_kona_gpio_probe()
RDMA/pvrdma: Fix missing pci disable in pvrdma_pci_probe()
ALSA: hwdep: fix a left shifting 1 by 31 UB bug
ALSA: hda/realtek - Add a model for Thinkpad T570 without DAC workaround
ALSA: usb-audio: mixer: volume quirk for ESS Technology Asus USB DAC
exec: Always set cap_ambient in cap_bprm_set_creds
clk: qcom: gcc: Fix parent for gpll0_out_even
ALSA: usb-audio: Quirks for Gigabyte TRX40 Aorus Master onboard audio
ALSA: hda/realtek - Add new codec supported for ALC287
libceph: ignore pool overlay and cache logic on redirects
ceph: flush release queue when handling caps for unknown inode
RDMA/core: Fix double destruction of uobject
drm/amd/display: drop cursor position check in atomic test
IB/ipoib: Fix double free of skb in case of multicast traffic in CM mode
mm,thp: stop leaking unreleased file pages
mm: remove VM_BUG_ON(PageSlab()) from page_mapcount()
fs/binfmt_elf.c: allocate initialized memory in fill_thread_core_info()
include/asm-generic/topology.h: guard cpumask_of_node() macro argument
Revert "block: end bio with BLK_STS_AGAIN in case of non-mq devs and REQ_NOWAIT"
gpio: fix locking open drain IRQ lines
iommu: Fix reference count leak in iommu_group_alloc.
parisc: Fix kernel panic in mem_init()
cfg80211: fix debugfs rename crash
x86/syscalls: Revert "x86/syscalls: Make __X32_SYSCALL_BIT be unsigned long"
mac80211: mesh: fix discovery timer re-arming issue / crash
x86/dma: Fix max PFN arithmetic overflow on 32 bit systems
copy_xstate_to_kernel(): don't leave parts of destination uninitialized
xfrm: allow to accept packets with ipv6 NEXTHDR_HOP in xfrm_input
xfrm: do pskb_pull properly in __xfrm_transport_prep
xfrm: remove the xfrm_state_put call becofe going to out_reset
xfrm: call xfrm_output_gso when inner_protocol is set in xfrm_output
xfrm interface: fix oops when deleting a x-netns interface
xfrm: fix a warning in xfrm_policy_insert_list
xfrm: fix a NULL-ptr deref in xfrm_local_error
xfrm: fix error in comment
ip_vti: receive ipip packet by calling ip_tunnel_rcv
netfilter: nft_reject_bridge: enable reject with bridge vlan
netfilter: ipset: Fix subcounter update skip
netfilter: conntrack: make conntrack userspace helpers work again
netfilter: nfnetlink_cthelper: unbreak userspace helper support
netfilter: nf_conntrack_pptp: prevent buffer overflows in debug code
esp6: get the right proto for transport mode in esp6_gso_encap
bnxt_en: Fix accumulation of bp->net_stats_prev.
ieee80211: Fix incorrect mask for default PE duration
xsk: Add overflow check for u64 division, stored into u32
qlcnic: fix missing release in qlcnic_83xx_interrupt_test.
crypto: chelsio/chtls: properly set tp->lsndtime
nexthops: Move code from remove_nexthop_from_groups to remove_nh_grp_entry
nexthops: don't modify published nexthop groups
nexthop: Expand nexthop_is_multipath in a few places
ipv4: nexthop version of fib_info_nh_uses_dev
net: dsa: declare lockless TX feature for slave ports
bonding: Fix reference count leak in bond_sysfs_slave_add.
netfilter: conntrack: comparison of unsigned in cthelper confirmation
netfilter: conntrack: Pass value of ctinfo to __nf_conntrack_update
netfilter: nf_conntrack_pptp: fix compilation warning with W=1 build
perf: Make perf able to build with latest libbfd
Linux 5.4.44
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I777406568d295ec142ebaa28af996bbb64e6029e
[ Upstream commit 23ad04669f ]
GCC 10 is very strict about symbol clash, and lwt_len_hist_user contains
a symbol which clashes with libbpf:
/usr/bin/ld: samples/bpf/lwt_len_hist_user.o:(.bss+0x0): multiple definition of `bpf_log_buf'; samples/bpf/bpf_load.o:(.bss+0x8c0): first defined here
collect2: error: ld returned 1 exit status
bpf_log_buf here seems to be a leftover, so removing it.
Signed-off-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20200511113234.80722-1-mcroce@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Changes in 5.4.36
ext4: fix extent_status fragmentation for plain files
f2fs: fix to avoid memory leakage in f2fs_listxattr
net, ip_tunnel: fix interface lookup with no key
arm64: errata: Hide CTR_EL0.DIC on systems affected by Neoverse-N1 #1542419
arm64: Fake the IminLine size on systems affected by Neoverse-N1 #1542419
arm64: compat: Workaround Neoverse-N1 #1542419 for compat user-space
arm64: Silence clang warning on mismatched value/register sizes
tools/testing/nvdimm: Fix compilation failure without CONFIG_DEV_DAX_PMEM_COMPAT
watchdog: reset last_hw_keepalive time at start
scsi: lpfc: Fix kasan slab-out-of-bounds error in lpfc_unreg_login
scsi: lpfc: Fix crash after handling a pci error
scsi: lpfc: Fix crash in target side cable pulls hitting WAIT_FOR_UNREG
scsi: libfc: If PRLI rejected, move rport to PLOGI state
ceph: return ceph_mdsc_do_request() errors from __get_parent()
ceph: don't skip updating wanted caps when cap is stale
pwm: rcar: Fix late Runtime PM enablement
nvme-tcp: fix possible crash in write_zeroes processing
scsi: iscsi: Report unbind session event when the target has been removed
tools/test/nvdimm: Fix out of tree build
ASoC: Intel: atom: Take the drv->lock mutex before calling sst_send_slot_map()
nvme: fix deadlock caused by ANA update wrong locking
drm/amd/display: Update stream adjust in dc_stream_adjust_vmin_vmax
dma-direct: fix data truncation in dma_direct_get_required_mask()
kernel/gcov/fs.c: gcov_seq_next() should increase position index
selftests: kmod: fix handling test numbers above 9
ipc/util.c: sysvipc_find_ipc() should increase position index
kconfig: qconf: Fix a few alignment issues
lib/raid6/test: fix build on distros whose /bin/sh is not bash
s390/cio: generate delayed uevent for vfio-ccw subchannels
s390/cio: avoid duplicated 'ADD' uevents
loop: Better discard support for block devices
Revert "powerpc/64: irq_work avoid interrupt when called with hardware irqs enabled"
powerpc/pseries: Fix MCE handling on pseries
nvme: fix compat address handling in several ioctls
pwm: renesas-tpu: Fix late Runtime PM enablement
pwm: bcm2835: Dynamically allocate base
perf/core: Disable page faults when getting phys address
drm/amd/display: Calculate scaling ratios on every medium/full update
ASoC: Intel: bytcr_rt5640: Add quirk for MPMAN MPWIN895CL tablet
ALSA: usb-audio: Add Pioneer DJ DJM-250MK2 quirk
xhci: Ensure link state is U3 after setting USB_SS_PORT_LS_U3
xhci: Wait until link state trainsits to U0 after setting USB_SS_PORT_LS_U0
xhci: Finetune host initiated USB3 rootport link suspend and resume
drm/amd/display: Not doing optimize bandwidth if flip pending.
PCI/PM: Add pcie_wait_for_link_delay()
libbpf: Fix readelf output parsing on powerpc with recent binutils
PCI: pciehp: Prevent deadlock on disconnect
ASoC: SOF: trace: fix unconditional free in trace release
tracing/selftests: Turn off timeout setting
virtio-blk: improve virtqueue error to BLK_STS
scsi: smartpqi: fix controller lockup observed during force reboot
scsi: smartpqi: fix call trace in device discovery
scsi: smartpqi: fix problem with unique ID for physical device
PCI/ASPM: Allow re-enabling Clock PM
PCI/PM: Add missing link delays required by the PCIe spec
cxgb4: fix adapter crash due to wrong MC size
cxgb4: fix large delays in PTP synchronization
ipv4: Update fib_select_default to handle nexthop objects
ipv6: fix restrict IPV6_ADDRFORM operation
macsec: avoid to set wrong mtu
macvlan: fix null dereference in macvlan_device_event()
mlxsw: Fix some IS_ERR() vs NULL bugs
net: bcmgenet: correct per TX/RX ring statistics
net/mlx4_en: avoid indirect call in TX completion
net: netrom: Fix potential nr_neigh refcnt leak in nr_add_node
net: openvswitch: ovs_ct_exit to be done under ovs_lock
net: stmmac: dwmac-meson8b: Add missing boundary to RGMII TX clock array
net/x25: Fix x25_neigh refcnt leak when receiving frame
sched: etf: do not assume all sockets are full blown
selftests: Fix suppress test in fib_tests.sh
tcp: cache line align MAX_TCP_HEADER
team: fix hang in team_mode_get()
vrf: Fix IPv6 with qdisc and xfrm
net: dsa: b53: Lookup VID in ARL searches when VLAN is enabled
net: dsa: b53: Fix valid setting for MDB entries
net: dsa: b53: Fix ARL register definitions
net: dsa: b53: Rework ARL bin logic
net: dsa: b53: b53_arl_rw_op() needs to select IVL or SVL
vxlan: use the correct nlattr array in NL_SET_ERR_MSG_ATTR
geneve: use the correct nlattr array in NL_SET_ERR_MSG_ATTR
xfrm: Always set XFRM_TRANSFORMED in xfrm{4,6}_output_finish
vrf: Check skb for XFRM_TRANSFORMED flag
KEYS: Avoid false positive ENOMEM error on key read
ALSA: hda: Remove ASUS ROG Zenith from the blacklist
ALSA: usb-audio: Add static mapping table for ALC1220-VB-based mobos
ALSA: usb-audio: Add connector notifier delegation
iio: core: remove extra semi-colon from devm_iio_device_register() macro
iio: st_sensors: rely on odr mask to know if odr can be set
iio: adc: stm32-adc: fix sleep in atomic context
iio: adc: ti-ads8344: properly byte swap value
iio: xilinx-xadc: Fix ADC-B powerdown
iio: xilinx-xadc: Fix clearing interrupt when enabling trigger
iio: xilinx-xadc: Fix sequencer configuration for aux channels in simultaneous mode
iio: xilinx-xadc: Make sure not exceed maximum samplerate
USB: sisusbvga: Change port variable from signed to unsigned
USB: Add USB_QUIRK_DELAY_CTRL_MSG and USB_QUIRK_DELAY_INIT for Corsair K70 RGB RAPIDFIRE
USB: early: Handle AMD's spec-compliant identifiers, too
USB: core: Fix free-while-in-use bug in the USB S-Glibrary
USB: hub: Fix handling of connect changes during sleep
USB: hub: Revert commit bd0e6c9614 ("usb: hub: try old enumeration scheme first for high speed devices")
tty: serial: owl: add "much needed" clk_prepare_enable()
vmalloc: fix remap_vmalloc_range() bounds checks
staging: gasket: Fix incongruency in handling of sysfs entries creation
coredump: fix null pointer dereference on coredump
mm/hugetlb: fix a addressing exception caused by huge_pte_offset
mm/ksm: fix NULL pointer dereference when KSM zero page is enabled
tools/vm: fix cross-compile build
ALSA: usx2y: Fix potential NULL dereference
ALSA: hda/realtek - Fix unexpected init_amp override
ALSA: hda/realtek - Add new codec supported for ALC245
ALSA: hda/hdmi: Add module option to disable audio component binding
ALSA: usb-audio: Fix usb audio refcnt leak when getting spdif
ALSA: usb-audio: Filter out unsupported sample rates on Focusrite devices
tpm/tpm_tis: Free IRQ if probing fails
tpm: fix wrong return value in tpm_pcr_extend
tpm: ibmvtpm: retry on H_CLOSED in tpm_ibmvtpm_send()
KVM: s390: Return last valid slot if approx index is out-of-bounds
KVM: Check validity of resolved slot when searching memslots
KVM: VMX: Enable machine check support for 32bit targets
tty: hvc: fix buffer overflow during hvc_alloc().
tty: rocket, avoid OOB access
usb-storage: Add unusual_devs entry for JMicron JMS566
signal: Avoid corrupting si_pid and si_uid in do_notify_parent
audit: check the length of userspace generated audit records
ASoC: dapm: fixup dapm kcontrol widget
mac80211: populate debugfs only after cfg80211 init
SUNRPC: Fix backchannel RPC soft lockups
iwlwifi: pcie: actually release queue memory in TVQM
iwlwifi: mvm: beacon statistics shouldn't go backwards
iwlwifi: mvm: limit maximum queue appropriately
iwlwifi: mvm: Do not declare support for ACK Enabled Aggregation
iwlwifi: mvm: fix inactive TID removal return value usage
cifs: fix uninitialised lease_key in open_shroot()
ARM: imx: provide v7_cpu_resume() only on ARM_CPU_SUSPEND=y
powerpc/setup_64: Set cache-line-size based on cache-block-size
staging: comedi: dt2815: fix writing hi byte of analog output
staging: comedi: Fix comedi_device refcnt leak in comedi_open
vt: don't hardcode the mem allocation upper bound
vt: don't use kmalloc() for the unicode screen buffer
staging: vt6656: Don't set RCR_MULTICAST or RCR_BROADCAST by default.
staging: vt6656: Fix calling conditions of vnt_set_bss_mode
staging: vt6656: Fix drivers TBTT timing counter.
staging: vt6656: Fix pairwise key entry save.
staging: vt6656: Power save stop wake_up_count wrap around.
cdc-acm: close race betrween suspend() and acm_softint
cdc-acm: introduce a cool down
UAS: no use logging any details in case of ENODEV
UAS: fix deadlock in error handling and PM flushing work
fpga: dfl: pci: fix return value of cci_pci_sriov_configure
usb: dwc3: gadget: Fix request completion check
usb: f_fs: Clear OS Extended descriptor counts to zero in ffs_data_reset()
usb: typec: tcpm: Ignore CC and vbus changes in PORT_RESET change
usb: typec: altmode: Fix typec_altmode_get_partner sometimes returning an invalid pointer
xhci: Fix handling halted endpoint even if endpoint ring appears empty
xhci: prevent bus suspend if a roothub port detected a over-current condition
xhci: Don't clear hub TT buffer on ep0 protocol stall
serial: sh-sci: Make sure status register SCxSR is read in correct sequence
Revert "serial: uartps: Fix uartps_major handling"
Revert "serial: uartps: Use the same dynamic major number for all ports"
Revert "serial: uartps: Fix error path when alloc failed"
Revert "serial: uartps: Do not allow use aliases >= MAX_UART_INSTANCES"
Revert "serial: uartps: Change uart ID port allocation"
Revert "serial: uartps: Move Port ID to device data structure"
Revert "serial: uartps: Register own uart console and driver structures"
powerpc/kuap: PPC_KUAP_DEBUG should depend on PPC_KUAP
powerpc/mm: Fix CONFIG_PPC_KUAP_DEBUG on PPC32
compat: ARM64: always include asm-generic/compat.h
s390/mm: fix page table upgrade vs 2ndary address mode accesses
Linux 5.4.36
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ifdf825c6108478f56768c9705ccded38b9d76a1a
commit bdebd6a283 upstream.
remap_vmalloc_range() has had various issues with the bounds checks it
promises to perform ("This function checks that addr is a valid
vmalloc'ed area, and that it is big enough to cover the vma") over time,
e.g.:
- not detecting pgoff<<PAGE_SHIFT overflow
- not detecting (pgoff<<PAGE_SHIFT)+usize overflow
- not checking whether addr and addr+(pgoff<<PAGE_SHIFT) are the same
vmalloc allocation
- comparing a potentially wildly out-of-bounds pointer with the end of
the vmalloc region
In particular, since commit fc9702273e ("bpf: Add mmap() support for
BPF_MAP_TYPE_ARRAY"), unprivileged users can cause kernel null pointer
dereferences by calling mmap() on a BPF map with a size that is bigger
than the distance from the start of the BPF map to the end of the
address space.
This could theoretically be used as a kernel ASLR bypass, by using
whether mmap() with a given offset oopses or returns an error code to
perform a binary search over the possible address range.
To allow remap_vmalloc_range_partial() to verify that addr and
addr+(pgoff<<PAGE_SHIFT) are in the same vmalloc region, pass the offset
to remap_vmalloc_range_partial() instead of adding it to the pointer in
remap_vmalloc_range().
In remap_vmalloc_range_partial(), fix the check against
get_vm_area_size() by using size comparisons instead of pointer
comparisons, and add checks for pgoff.
Fixes: 833423143c ("[PATCH] mm: introduce remap_vmalloc_range()")
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: stable@vger.kernel.org
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Yonghong Song <yhs@fb.com>
Cc: Andrii Nakryiko <andriin@fb.com>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: KP Singh <kpsingh@chromium.org>
Link: http://lkml.kernel.org/r/20200415222312.236431-1-jannh@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Patch series "Unexport kallsyms_lookup_name() and kallsyms_on_each_symbol()".
Despite having just a single modular in-tree user that I could spot,
kallsyms_lookup_name() is exported to modules and provides a mechanism
for out-of-tree modules to access and invoke arbitrary, non-exported
kernel symbols when kallsyms is enabled.
This patch series fixes up that one user and unexports the symbol along
with kallsyms_on_each_symbol(), since that could also be abused in a
similar manner.
I would like to avoid out-of-tree modules being easily able to call
functions that are not exported. kallsyms_lookup_name() makes this
trivial to the point that there is very little incentive to rework these
modules to either use upstream interfaces correctly or propose
functionality which may be otherwise missing upstream. Both of these
latter solutions would be pre-requisites to upstreaming these modules, and
the current state of things actively discourages that approach.
The background here is that we are aiming for Android devices to be able
to use a generic binary kernel image closely following upstream, with any
vendor extensions coming in as kernel modules. In this case, we (Google)
end up maintaining the binary module ABI within the scope of a single LTS
kernel. Monitoring and managing the ABI surface is not feasible if it
effectively includes all data and functions via kallsyms_lookup_name().
Of course, we could just carry this patch in the Android kernel tree, but
we're aiming to carry as little as possible (ideally nothing) and I think
it's a sensible change in its own right. I'm surprised you object to it,
in all honesty.
Now, you could turn around and say "that's not upstream's problem", but it
still seems highly undesirable to me to have an upstream bypass for
exported symbols that isn't even used by upstream modules. It's ripe for
abuse and encourages people to work outside of the upstream tree. The
usual rule is that we don't export symbols without a user in the tree and
that seems especially relevant in this case.
Joe Lawrence said:
: FWIW, kallsyms was historically used by the out-of-tree kpatch support
: module to resolve external symbols as well as call set_memory_r{w,o}()
: API. All of that support code has been merged upstream, so modern kpatch
: modules* no longer leverage kallsyms by default.
:
: That said, there are still some users who still use the deprecated support
: module with newer kernels, but that is not officially supported by the
: project.
This patch (of 3):
Given the name of a kernel symbol, the 'data_breakpoint' test claims to
"report any write operations on the kernel symbol". However, it creates
the breakpoint using both HW_BREAKPOINT_W and HW_BREAKPOINT_R, which menas
it also fires for read access.
Drop HW_BREAKPOINT_R from the breakpoint attributes.
Bug: 149978696
Change-Id: I12f793136a7187c844841e7dd65b90645d5519f6
Link: http://lkml.kernel.org/r/20200221114404.14641-2-will@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: K.Prasad <prasad@linux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Frederic Weisbecker <frederic@kernel.org>
Cc: Quentin Perret <qperret@google.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Miroslav Benes <mbenes@suse.cz>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Joe Lawrence <joe.lawrence@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
(cherry picked from commit 0c1b9251116b972cafa3cf16bd02cb2354535b38
https://github.com/hnaz/linux-mm.git master)
Signed-off-by: Quentin Perret <qperret@google.com>
[ Upstream commit 450278977a ]
It seems Clang can in some cases turn on stack protection by default, which
doesn't work with BPF. This was reported once before[0], but it seems the
flag to explicitly turn off the stack protector wasn't added to the
Makefile, so do that now.
The symptom of this is compile errors like the following:
error: <unknown>:0:0: in function bpf_prog1 i32 (%struct.__sk_buff*): A call to built-in function '__stack_chk_fail' is not supported.
[0] https://www.spinics.net/lists/netdev/msg556400.html
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20191216103819.359535-1-toke@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
commit f9e6bfdbaf upstream.
When sample xdp_redirect_cpu was converted to use libbpf, the
tracepoints used by this sample were not getting attached automatically
like with bpf_load.c. The BPF-maps was still getting loaded, thus
nobody notice that the tracepoints were not updating these maps.
This fix doesn't use the new skeleton code, as this bug was introduced
in v5.1 and stable might want to backport this. E.g. Red Hat QA uses
this sample as part of their testing.
Fixes: bbaf6029c4 ("samples/bpf: Convert XDP samples to libbpf usage")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/157685877642.26195.2798780195186786841.stgit@firesoul
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit b2e5e93ae8 upstream.
The 'clean' rule in the samples/bpf Makefile tries to remove backup
files (ending in ~). However, if no such files exist, it will instead try
to remove the user's home directory. While the attempt is mostly harmless,
it does lead to a somewhat scary warning like this:
rm: cannot remove '~': Is a directory
Fix this by using find instead of shell expansion to locate any actual
backup files that need to be removed.
Fixes: b62a796c10 ("samples/bpf: allow make to be run from samples/bpf/ directory")
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Link: https://lore.kernel.org/bpf/157952560126.1683545.7273054725976032511.stgit@toke.dk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit edbca120a8 upstream.
In the days of using bpf_load.c the order in which the 'maps' sections
were defines in BPF side (*_kern.c) file, were used by userspace side
to identify the map via using the map order as an index. In effect the
order-index is created based on the order the maps sections are stored
in the ELF-object file, by the LLVM compiler.
This have also carried over in libbpf via API bpf_map__next(NULL, obj)
to extract maps in the order libbpf parsed the ELF-object file.
When BTF based maps were introduced a new section type ".maps" were
created. I found that the LLVM compiler doesn't create the ".maps"
sections in the order they are defined in the C-file. The order in the
ELF file is based on the order the map pointer is referenced in the code.
This combination of changes lead to xdp_rxq_info mixing up the map
file-descriptors in userspace, resulting in very broken behaviour, but
without warning the user.
This patch fix issue by instead using bpf_object__find_map_by_name()
to find maps via their names. (Note, this is the ELF name, which can
be longer than the name the kernel retains).
Fixes: be5bca44aa ("samples: bpf: convert some XDP samples from bpf_load to libbpf")
Fixes: 451d1dc886 ("samples: bpf: update map definition to new syntax BTF-defined map")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/157529025128.29832.5953245340679936909.stgit@firesoul
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 451d1dc886 upstream.
Since, the new syntax of BTF-defined map has been introduced,
the syntax for using maps under samples directory are mixed up.
For example, some are already using the new syntax, and some are using
existing syntax by calling them as 'legacy'.
As stated at commit abd29c9314 ("libbpf: allow specifying map
definitions using BTF"), the BTF-defined map has more compatablility
with extending supported map definition features.
The commit doesn't replace all of the map to new BTF-defined map,
because some of the samples still use bpf_load instead of libbpf, which
can't properly create BTF-defined map.
This will only updates the samples which uses libbpf API for loading bpf
program. (ex. bpf_prog_load_xattr)
Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit fe3300897c ]
Currently, open() is called from the user program and it calls the syscall
'sys_openat', not the 'sys_open'. This leads to an error of the program
of user side, due to the fact that the counter maps are zero since no
function such 'sys_open' is called.
This commit adds the kernel bpf program which are attached to the
tracepoint 'sys_enter_openat' and 'sys_enter_openat'.
Fixes: 1da236b6be ("bpf: add a test case for syscalls/sys_{enter|exit}_* tracepoints")
Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit bba1b2a890 ]
Previously, when this sample is added, commit 1c47910ef8
("samples/bpf: add perf_event+bpf example"), a symbol 'sys_read' and
'sys_write' has been used without no prefixes. But currently there are
no exact symbols with these under kallsyms and this leads to failure.
This commit changes exact compare to substring compare to keep compatible
with exact symbol or prefixed symbol.
Fixes: 1c47910ef8 ("samples/bpf: add perf_event+bpf example")
Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20191205080114.19766-2-danieltimlee@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
commit 01f36a554e upstream.
trace_printk schedules work via irq_work_queue(), but doesn't
wait until it was processed. The kprobe_module.tc testcase does:
:;: "Load module again, which means the event1 should be recorded";:
modprobe trace-printk
grep "event1:" trace
so the grep which checks the trace file might run before the irq work
was processed. Fix this by adding a irq_work_sync().
Link: http://lore.kernel.org/linux-trace-devel/20191218074427.96184-3-svens@linux.ibm.com
Cc: stable@vger.kernel.org
Fixes: af2a0750f3 ("selftests/ftrace: Improve kprobe on module testcase to load/unload module")
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 771b894f2f upstream.
The sizes by which seccomp_notif and seccomp_notif_resp are allocated are
based on the SECCOMP_GET_NOTIF_SIZES ioctl. This allows for graceful
extension of these datastructures. If userspace zeroes out the
datastructure based on its version, and it is lagging behind the kernel's
version, it will end up sending trailing garbage. On the other hand,
if it is ahead of the kernel version, it will write extra zero space,
and potentially cause corruption.
Signed-off-by: Sargun Dhillon <sargun@sargun.me>
Suggested-by: Tycho Andersen <tycho@tycho.ws>
Link: https://lore.kernel.org/r/20191230203503.4925-1-sargun@sargun.me
Fixes: fec7b66905 ("samples: add an example of seccomp user trap")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 3cad8f9115 ]
Currently, proc_cmd is used to dispatch command to 'pg_ctrl', 'pg_thread',
'pg_set'. proc_cmd is designed to check command result with grep the
"Result:", but this might fail since this string is only shown in
'pg_thread' and 'pg_set'.
This commit fixes this logic by grep-ing the "Result:" string only when
the command is not for 'pg_ctrl'.
For clarity of an execution flow, 'errexit' flag has been set.
To cleanup pktgen on exit, trap has been added for EXIT signal.
Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Pull rpmsg updates from Bjorn Andersson:
"This contains updates to make the rpmsg sample driver more useful,
fixes the naming of GLINK devices to avoid naming collisions and a few
minor bug fixes. It also updates MAINTAINERS to reflect the move to
kernel.org"
* tag 'rpmsg-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc:
rpmsg: glink-smem: Name the edge based on parent remoteproc
rpmsg: glink: Use struct_size() helper
rpmsg: virtio_rpmsg_bus: replace "%p" with "%pK"
MAINTAINERS: rpmsg: fix git tree location
rpmsg: core: fix comments
samples/rpmsg: Introduce a module parameter for message count
samples/rpmsg: Replace print_hex_dump() with print_hex_dump_debug()
Pull VFIO updates from Alex Williamson:
- Fix spapr iommu error case case (Alexey Kardashevskiy)
- Consolidate region type definitions (Cornelia Huck)
- Restore saved original PCI state on release (hexin)
- Simplify mtty sample driver interrupt path (Parav Pandit)
- Support for reporting valid IOVA regions to user (Shameer Kolothum)
* tag 'vfio-v5.4-rc1' of git://github.com/awilliam/linux-vfio:
vfio_pci: Restore original state on release
vfio/type1: remove duplicate retrieval of reserved regions
vfio/type1: Add IOVA range capability support
vfio/type1: check dma map request is within a valid iova range
vfio/spapr_tce: Fix incorrect tce_iommu_group memory free
vfio-mdev/mtty: Simplify interrupt generation
vfio: re-arrange vfio region definitions
vfio/type1: Update iova list on detach
vfio/type1: Check reserved region conflict and update iova list
vfio/type1: Introduce iova list and add iommu aperture validity check
Preserve the offset of the address of the received descriptor, and include
it in the address set for the tx descriptor, so the kernel can correctly
locate the start of the packet data.
Fixes: 03895e63ff ("samples/bpf: add buffer recycling for unaligned chunks to xdpsock")
Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Daniel Borkmann says:
====================
The following pull-request contains BPF updates for your *net-next* tree.
The main changes are:
1) Add the ability to use unaligned chunks in the AF_XDP umem. By
relaxing where the chunks can be placed, it allows to use an
arbitrary buffer size and place whenever there is a free
address in the umem. Helps more seamless DPDK AF_XDP driver
integration. Support for i40e, ixgbe and mlx5e, from Kevin and
Maxim.
2) Addition of a wakeup flag for AF_XDP tx and fill rings so the
application can wake up the kernel for rx/tx processing which
avoids busy-spinning of the latter, useful when app and driver
is located on the same core. Support for i40e, ixgbe and mlx5e,
from Magnus and Maxim.
3) bpftool fixes for printf()-like functions so compiler can actually
enforce checks, bpftool build system improvements for custom output
directories, and addition of 'bpftool map freeze' command, from Quentin.
4) Support attaching/detaching XDP programs from 'bpftool net' command,
from Daniel.
5) Automatic xskmap cleanup when AF_XDP socket is released, and several
barrier/{read,write}_once fixes in AF_XDP code, from Björn.
6) Relicense of bpf_helpers.h/bpf_endian.h for future libbpf
inclusion as well as libbpf versioning improvements, from Andrii.
7) Several new BPF kselftests for verifier precision tracking, from Alexei.
8) Several BPF kselftest fixes wrt endianess to run on s390x, from Ilya.
9) And more BPF kselftest improvements all over the place, from Stanislav.
10) Add simple BPF map op cache for nfp driver to batch dumps, from Jakub.
11) AF_XDP socket umem mapping improvements for 32bit archs, from Ivan.
12) Add BPF-to-BPF call and BTF line info support for s390x JIT, from Yauheni.
13) Small optimization in arm64 JIT to spare 1 insns for BPF_MOD, from Jerin.
14) Fix an error check in bpf_tcp_gen_syncookie() helper, from Petar.
15) Various minor fixes and cleanups, from Nathan, Masahiro, Masanari,
Peter, Wei, Yue.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch modifies xdpsock to use mmap instead of posix_memalign. With
this change, we can use hugepages when running the application in unaligned
chunks mode. Using hugepages makes it more likely that we have physically
contiguous memory, which supports the unaligned chunk mode better.
Signed-off-by: Kevin Laatz <kevin.laatz@intel.com>
Acked-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This patch adds buffer recycling support for unaligned buffers. Since we
don't mask the addr to 2k at umem_reg in unaligned mode, we need to make
sure we give back the correct (original) addr to the fill queue. We achieve
this using the new descriptor format and associated masks. The new format
uses the upper 16-bits for the offset and the lower 48-bits for the addr.
Since we have a field for the offset, we no longer need to modify the
actual address. As such, all we have to do to get back the original address
is mask for the lower 48 bits (i.e. strip the offset and we get the address
on it's own).
Signed-off-by: Kevin Laatz <kevin.laatz@intel.com>
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This patch adds support for the unaligned chunks mode. The addition of the
unaligned chunks option will allow users to run the application with more
relaxed chunk placement in the XDP umem.
Unaligned chunks mode can be used with the '-u' or '--unaligned' command
line options.
Signed-off-by: Kevin Laatz <kevin.laatz@intel.com>
Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>
Acked-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
The current rpmsg_client_sample uses a fixed number of messages to
be sent to each instance. This is currently set at 100. Introduce
an optional module parameter 'count' so that the number of messages
to be exchanged can be made flexible.
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Replace the raw print_hex_dump() call in the rpmsg_sample_cb() function
with the equivalent print_hex_dump_debug() better suited for dynamic
debug. This switch allows flexibility of controlling this trace through
dynamic debug when enabled.
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
For arm32 xdp sockets mmap2 is preferred, so use it if it's defined.
Declaration of __NR_mmap can be skipped and it breaks build.
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Acked-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
While generating interrupt, mdev_state is already available for which
interrupt is generated.
Instead of doing indirect way from state->device->uuid-> to searching
state linearly in linked list on every interrupt generation,
directly use the available state.
Hence, simplify the code to use mdev_state and remove unused helper
function with that.
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit adds using the need_wakeup flag to the xdpsock sample
application. It is turned on by default as we think it is a feature
that seems to always produce a performance benefit, if the application
has been written taking advantage of it. It can be turned off in the
sample app by using the '-m' command line option.
The txpush and l2fwd sub applications have also been updated to
support poll() with multiple sockets.
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Acked-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Daniel Borkmann says:
====================
The following pull-request contains BPF updates for your *net-next* tree.
There is a small merge conflict in libbpf (Cc Andrii so he's in the loop
as well):
for (i = 1; i <= btf__get_nr_types(btf); i++) {
t = (struct btf_type *)btf__type_by_id(btf, i);
if (!has_datasec && btf_is_var(t)) {
/* replace VAR with INT */
t->info = BTF_INFO_ENC(BTF_KIND_INT, 0, 0);
<<<<<<< HEAD
/*
* using size = 1 is the safest choice, 4 will be too
* big and cause kernel BTF validation failure if
* original variable took less than 4 bytes
*/
t->size = 1;
*(int *)(t+1) = BTF_INT_ENC(0, 0, 8);
} else if (!has_datasec && kind == BTF_KIND_DATASEC) {
=======
t->size = sizeof(int);
*(int *)(t + 1) = BTF_INT_ENC(0, 0, 32);
} else if (!has_datasec && btf_is_datasec(t)) {
>>>>>>> 72ef80b5ee
/* replace DATASEC with STRUCT */
Conflict is between the two commits 1d4126c4e1 ("libbpf: sanitize VAR to
conservative 1-byte INT") and b03bc6853c ("libbpf: convert libbpf code to
use new btf helpers"), so we need to pick the sanitation fixup as well as
use the new btf_is_datasec() helper and the whitespace cleanup. Looks like
the following:
[...]
if (!has_datasec && btf_is_var(t)) {
/* replace VAR with INT */
t->info = BTF_INFO_ENC(BTF_KIND_INT, 0, 0);
/*
* using size = 1 is the safest choice, 4 will be too
* big and cause kernel BTF validation failure if
* original variable took less than 4 bytes
*/
t->size = 1;
*(int *)(t + 1) = BTF_INT_ENC(0, 0, 8);
} else if (!has_datasec && btf_is_datasec(t)) {
/* replace DATASEC with STRUCT */
[...]
The main changes are:
1) Addition of core parts of compile once - run everywhere (co-re) effort,
that is, relocation of fields offsets in libbpf as well as exposure of
kernel's own BTF via sysfs and loading through libbpf, from Andrii.
More info on co-re: http://vger.kernel.org/bpfconf2019.html#session-2
and http://vger.kernel.org/lpc-bpf2018.html#session-2
2) Enable passing input flags to the BPF flow dissector to customize parsing
and allowing it to stop early similar to the C based one, from Stanislav.
3) Add a BPF helper function that allows generating SYN cookies from XDP and
tc BPF, from Petar.
4) Add devmap hash-based map type for more flexibility in device lookup for
redirects, from Toke.
5) Improvements to XDP forwarding sample code now utilizing recently enabled
devmap lookups, from Jesper.
6) Add support for reporting the effective cgroup progs in bpftool, from Jakub
and Takshak.
7) Fix reading kernel config from bpftool via /proc/config.gz, from Peter.
8) Fix AF_XDP umem pages mapping for 32 bit architectures, from Ivan.
9) Follow-up to add two more BPF loop tests for the selftest suite, from Alexei.
10) Add perf event output helper also for other skb-based program types, from Allan.
11) Fix a co-re related compilation error in selftests, from Yonghong.
====================
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Make it clear that this XDP program depend on the network
stack to do the ARP resolution. This is connected with the
BPF_FIB_LKUP_RET_NO_NEIGH return code from bpf_fib_lookup().
Another common mistake (seen via XDP-tutorial) is that users
don't realize that sysctl net.ipv{4,6}.conf.all.forwarding
setting is honored by bpf_fib_lookup.
Reported-by: Anton Protopopov <a.s.protopopov@gmail.com>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Acked-by: Yonghong Song <yhs@fb.com>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This address the TODO in samples/bpf/xdp_fwd_kern.c, which points out
that the chosen egress index should be checked for existence in the
devmap. This can now be done via taking advantage of Toke's work in
commit 0cdbb4b09a ("devmap: Allow map lookups from eBPF").
This change makes xdp_fwd more practically usable, as this allows for
a mixed environment, where IP-forwarding fallback to network stack, if
the egress device isn't configured to use XDP.
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
The devmap name 'tx_port' came from a copy-paste from xdp_redirect_map
which only have a single TX port. Change name to xdp_tx_ports
to make it more descriptive.
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Acked-by: Yonghong Song <yhs@fb.com>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
The "WITH Linux-syscall-note" exception exists for headers exported to
user space. It is strange to add it to non-exported headers.
Commit 687a3e4d8e ("treewide: remove SPDX "WITH Linux-syscall-note"
from kernel-space headers") did cleanups some months ago, but it looks
like we need to do this periodically.
This patch was generated by the following script:
git grep -l -e Linux-syscall-note \
-- :*.h :^arch/*/include/uapi/asm/*.h :^include/uapi/ :^tools |
while read file
do
sed -i -e 's/(\(GPL-[^[:space:]]*\) WITH Linux-syscall-note)/\1/g' \
-e 's/ WITH Linux-syscall-note//g' $file
done
I did not commit drivers/staging/android/uapi/ion.h . This header is
not currently exported, but somebody may plan to move it to include/uapi/
when the time comes. I am not sure. Anyway, it will be better to check
the license inconsistency in drivers/staging/android/uapi/.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull networking fixes from David Miller:
1) Fix AF_XDP cq entry leak, from Ilya Maximets.
2) Fix handling of PHY power-down on RTL8411B, from Heiner Kallweit.
3) Add some new PCI IDs to iwlwifi, from Ihab Zhaika.
4) Fix handling of neigh timers wrt. entries added by userspace, from
Lorenzo Bianconi.
5) Various cases of missing of_node_put(), from Nishka Dasgupta.
6) The new NET_ACT_CT needs to depend upon NF_NAT, from Yue Haibing.
7) Various RDS layer fixes, from Gerd Rausch.
8) Fix some more fallout from TCQ_F_CAN_BYPASS generalization, from
Cong Wang.
9) Fix FIB source validation checks over loopback, also from Cong Wang.
10) Use promisc for unsupported number of filters, from Justin Chen.
11) Missing sibling route unlink on failure in ipv6, from Ido Schimmel.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (90 commits)
tcp: fix tcp_set_congestion_control() use from bpf hook
ag71xx: fix return value check in ag71xx_probe()
ag71xx: fix error return code in ag71xx_probe()
usb: qmi_wwan: add D-Link DWM-222 A2 device ID
bnxt_en: Fix VNIC accounting when enabling aRFS on 57500 chips.
net: dsa: sja1105: Fix missing unlock on error in sk_buff()
gve: replace kfree with kvfree
selftests/bpf: fix test_xdp_noinline on s390
selftests/bpf: fix "valid read map access into a read-only array 1" on s390
net/mlx5: Replace kfree with kvfree
MAINTAINERS: update netsec driver
ipv6: Unlink sibling route in case of failure
liquidio: Replace vmalloc + memset with vzalloc
udp: Fix typo in net/ipv4/udp.c
net: bcmgenet: use promisc for unsupported filters
ipv6: rt6_check should return NULL if 'from' is NULL
tipc: initialize 'validated' field of received packets
selftests: add a test case for rp_filter
fib: relax source validation check for loopback packets
mlxsw: spectrum: Do not process learned records with a dummy FID
...
Alexei Starovoitov says:
====================
pull-request: bpf 2019-07-18
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) verifier precision propagation fix, from Andrii.
2) BTF size fix for typedefs, from Andrii.
3) a bunch of big endian fixes, from Ilya.
4) wide load from bpf_sock_addr fixes, from Stanislav.
5) a bunch of misc fixes from a number of developers.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull VFIO updates from Alex Williamson:
- Static symbol cleanup in mdev samples (Kefeng Wang)
- Use vma help in nvlink code (Peng Hao)
- Remove unused code in mbochs sample (YueHaibing)
- Send uevents around mdev registration (Alex Williamson)
* tag 'vfio-v5.3-rc1' of git://github.com/awilliam/linux-vfio:
mdev: Send uevents around parent device registration
sample/mdev/mbochs: remove set but not used variable 'mdev_state'
vfio: vfio_pci_nvlink2: use a vma helper function
vfio-mdev/samples: make some symbols static
While $ARCH can be relatively flexible (see Makefile and
tools/scripts/Makefile.arch), $SRCARCH always corresponds to a directory
name under arch/.
Therefore, build samples with -D__TARGET_ARCH_$(SRCARCH), since that
matches the expectations of bpf_helpers.h.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: Vasily Gorbik <gor@linux.ibm.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
There are lots of documents under Documentation/*.txt and a few other
orphan documents elsehwere that belong to the driver-API book.
Move them to their right place.
Reviewed-by: Cornelia Huck <cohuck@redhat.com> # vfio-related parts
Acked-by: Logan Gunthorpe <logang@deltatee.com> # switchtec
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
