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77 Commits

Author SHA1 Message Date
Greg Kroah-Hartman
47c7e57022 Merge 5.15.61 into android14-5.15 
Changes in 5.15.61
        Makefile: link with -z noexecstack --no-warn-rwx-segments
        x86: link vdso and boot with -z noexecstack --no-warn-rwx-segments
        Revert "pNFS: nfs3_set_ds_client should set NFS_CS_NOPING"
        scsi: Revert "scsi: qla2xxx: Fix disk failure to rediscover"
        pNFS/flexfiles: Report RDMA connection errors to the server
        NFSD: Clean up the show_nf_flags() macro
        nfsd: eliminate the NFSD_FILE_BREAK_* flags
        ALSA: usb-audio: Add quirk for Behringer UMC202HD
        ALSA: bcd2000: Fix a UAF bug on the error path of probing
        ALSA: hda/realtek: Add quirk for Clevo NV45PZ
        ALSA: hda/realtek: Add quirk for HP Spectre x360 15-eb0xxx
        wifi: mac80211_hwsim: fix race condition in pending packet
        wifi: mac80211_hwsim: add back erroneously removed cast
        wifi: mac80211_hwsim: use 32-bit skb cookie
        add barriers to buffer_uptodate and set_buffer_uptodate
        lockd: detect and reject lock arguments that overflow
        HID: hid-input: add Surface Go battery quirk
        HID: wacom: Only report rotation for art pen
        HID: wacom: Don't register pad_input for touch switch
        KVM: nVMX: Snapshot pre-VM-Enter BNDCFGS for !nested_run_pending case
        KVM: nVMX: Snapshot pre-VM-Enter DEBUGCTL for !nested_run_pending case
        KVM: SVM: Don't BUG if userspace injects an interrupt with GIF=0
        KVM: s390: pv: don't present the ecall interrupt twice
        KVM: x86: Split kvm_is_valid_cr4() and export only the non-vendor bits
        KVM: nVMX: Let userspace set nVMX MSR to any _host_ supported value
        KVM: nVMX: Account for KVM reserved CR4 bits in consistency checks
        KVM: nVMX: Inject #UD if VMXON is attempted with incompatible CR0/CR4
        KVM: x86: Mark TSS busy during LTR emulation _after_ all fault checks
        KVM: x86: Set error code to segment selector on LLDT/LTR non-canonical #GP
        KVM: nVMX: Always enable TSC scaling for L2 when it was enabled for L1
        KVM: x86: Tag kvm_mmu_x86_module_init() with __init
        KVM: x86: do not report preemption if the steal time cache is stale
        KVM: x86: revalidate steal time cache if MSR value changes
        riscv: set default pm_power_off to NULL
        ALSA: hda/conexant: Add quirk for LENOVO 20149 Notebook model
        ALSA: hda/cirrus - support for iMac 12,1 model
        ALSA: hda/realtek: Add quirk for another Asus K42JZ model
        ALSA: hda/realtek: Add a quirk for HP OMEN 15 (8786) mute LED
        tty: vt: initialize unicode screen buffer
        vfs: Check the truncate maximum size in inode_newsize_ok()
        fs: Add missing umask strip in vfs_tmpfile
        thermal: sysfs: Fix cooling_device_stats_setup() error code path
        fbcon: Fix boundary checks for fbcon=vc:n1-n2 parameters
        fbcon: Fix accelerated fbdev scrolling while logo is still shown
        usbnet: Fix linkwatch use-after-free on disconnect
        fix short copy handling in copy_mc_pipe_to_iter()
        crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak
        ovl: drop WARN_ON() dentry is NULL in ovl_encode_fh()
        parisc: Fix device names in /proc/iomem
        parisc: Drop pa_swapper_pg_lock spinlock
        parisc: Check the return value of ioremap() in lba_driver_probe()
        parisc: io_pgetevents_time64() needs compat syscall in 32-bit compat mode
        riscv:uprobe fix SR_SPIE set/clear handling
        dt-bindings: riscv: fix SiFive l2-cache's cache-sets
        RISC-V: kexec: Fixup use of smp_processor_id() in preemptible context
        RISC-V: Fixup get incorrect user mode PC for kernel mode regs
        RISC-V: Fixup schedule out issue in machine_crash_shutdown()
        RISC-V: Add modules to virtual kernel memory layout dump
        rtc: rx8025: fix 12/24 hour mode detection on RX-8035
        drm/gem: Properly annotate WW context on drm_gem_lock_reservations() error
        drm/shmem-helper: Add missing vunmap on error
        drm/vc4: hdmi: Disable audio if dmas property is present but empty
        drm/hyperv-drm: Include framebuffer and EDID headers
        drm/nouveau: fix another off-by-one in nvbios_addr
        drm/nouveau: Don't pm_runtime_put_sync(), only pm_runtime_put_autosuspend()
        drm/nouveau/acpi: Don't print error when we get -EINPROGRESS from pm_runtime
        drm/nouveau/kms: Fix failure path for creating DP connectors
        drm/amdgpu: Check BO's requested pinning domains against its preferred_domains
        drm/amdgpu: fix check in fbdev init
        bpf: Fix KASAN use-after-free Read in compute_effective_progs
        btrfs: reject log replay if there is unsupported RO compat flag
        mtd: rawnand: arasan: Fix clock rate in NV-DDR
        mtd: rawnand: arasan: Update NAND bus clock instead of system clock
        um: Remove straying parenthesis
        um: seed rng using host OS rng
        iio: fix iio_format_avail_range() printing for none IIO_VAL_INT
        iio: light: isl29028: Fix the warning in isl29028_remove()
        scsi: sg: Allow waiting for commands to complete on removed device
        scsi: qla2xxx: Fix incorrect display of max frame size
        scsi: qla2xxx: Zero undefined mailbox IN registers
        soundwire: qcom: Check device status before reading devid
        ksmbd: fix memory leak in smb2_handle_negotiate
        ksmbd: prevent out of bound read for SMB2_TREE_CONNNECT
        ksmbd: fix use-after-free bug in smb2_tree_disconect
        fuse: limit nsec
        fuse: ioctl: translate ENOSYS
        serial: mvebu-uart: uart2 error bits clearing
        md-raid: destroy the bitmap after destroying the thread
        md-raid10: fix KASAN warning
        mbcache: don't reclaim used entries
        mbcache: add functions to delete entry if unused
        media: [PATCH] pci: atomisp_cmd: fix three missing checks on list iterator
        ia64, processor: fix -Wincompatible-pointer-types in ia64_get_irr()
        PCI: Add defines for normal and subtractive PCI bridges
        powerpc/fsl-pci: Fix Class Code of PCIe Root Port
        powerpc/ptdump: Fix display of RW pages on FSL_BOOK3E
        powerpc/powernv: Avoid crashing if rng is NULL
        MIPS: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK
        coresight: Clear the connection field properly
        usb: typec: ucsi: Acknowledge the GET_ERROR_STATUS command completion
        USB: HCD: Fix URB giveback issue in tasklet function
        ARM: dts: uniphier: Fix USB interrupts for PXs2 SoC
        arm64: dts: uniphier: Fix USB interrupts for PXs3 SoC
        usb: dwc3: gadget: refactor dwc3_repare_one_trb
        usb: dwc3: gadget: fix high speed multiplier setting
        netfilter: nf_tables: do not allow SET_ID to refer to another table
        netfilter: nf_tables: do not allow CHAIN_ID to refer to another table
        netfilter: nf_tables: do not allow RULE_ID to refer to another chain
        netfilter: nf_tables: fix null deref due to zeroed list head
        epoll: autoremove wakers even more aggressively
        x86: Handle idle=nomwait cmdline properly for x86_idle
        arch: make TRACE_IRQFLAGS_NMI_SUPPORT generic
        arm64: Do not forget syscall when starting a new thread.
        arm64: fix oops in concurrently setting insn_emulation sysctls
        arm64: kasan: Revert "arm64: mte: reset the page tag in page->flags"
        ext2: Add more validity checks for inode counts
        sched/fair: Introduce SIS_UTIL to search idle CPU based on sum of util_avg
        genirq: Don't return error on missing optional irq_request_resources()
        irqchip/mips-gic: Only register IPI domain when SMP is enabled
        genirq: GENERIC_IRQ_IPI depends on SMP
        sched/core: Always flush pending blk_plug
        irqchip/mips-gic: Check the return value of ioremap() in gic_of_init()
        wait: Fix __wait_event_hrtimeout for RT/DL tasks
        ARM: dts: imx6ul: add missing properties for sram
        ARM: dts: imx6ul: change operating-points to uint32-matrix
        ARM: dts: imx6ul: fix keypad compatible
        ARM: dts: imx6ul: fix csi node compatible
        ARM: dts: imx6ul: fix lcdif node compatible
        ARM: dts: imx6ul: fix qspi node compatible
        ARM: dts: BCM5301X: Add DT for Meraki MR26
        ARM: dts: ux500: Fix Codina accelerometer mounting matrix
        ARM: dts: ux500: Fix Gavini accelerometer mounting matrix
        spi: synquacer: Add missing clk_disable_unprepare()
        ARM: OMAP2+: display: Fix refcount leak bug
        ARM: OMAP2+: pdata-quirks: Fix refcount leak bug
        ACPI: EC: Remove duplicate ThinkPad X1 Carbon 6th entry from DMI quirks
        ACPI: EC: Drop the EC_FLAGS_IGNORE_DSDT_GPE quirk
        ACPI: PM: save NVS memory for Lenovo G40-45
        ACPI: LPSS: Fix missing check in register_device_clock()
        ARM: dts: qcom: sdx55: Fix the IRQ trigger type for UART
        arm64: dts: qcom: ipq8074: fix NAND node name
        arm64: dts: allwinner: a64: orangepi-win: Fix LED node name
        ARM: shmobile: rcar-gen2: Increase refcount for new reference
        firmware: tegra: Fix error check return value of debugfs_create_file()
        hwmon: (dell-smm) Add Dell XPS 13 7390 to fan control whitelist
        hwmon: (sht15) Fix wrong assumptions in device remove callback
        PM: hibernate: defer device probing when resuming from hibernation
        selinux: fix memleak in security_read_state_kernel()
        selinux: Add boundary check in put_entry()
        kasan: test: Silence GCC 12 warnings
        drm/amdgpu: Remove one duplicated ef removal
        powerpc/64s: Disable stack variable initialisation for prom_init
        spi: spi-rspi: Fix PIO fallback on RZ platforms
        ARM: findbit: fix overflowing offset
        meson-mx-socinfo: Fix refcount leak in meson_mx_socinfo_init
        arm64: dts: renesas: beacon: Fix regulator node names
        spi: spi-altera-dfl: Fix an error handling path
        ARM: bcm: Fix refcount leak in bcm_kona_smc_init
        ACPI: processor/idle: Annotate more functions to live in cpuidle section
        ARM: dts: imx7d-colibri-emmc: add cpu1 supply
        soc: renesas: r8a779a0-sysc: Fix A2DP1 and A2CV[2357] PDR values
        scsi: hisi_sas: Use managed PCI functions
        dt-bindings: iio: accel: Add DT binding doc for ADXL355
        soc: amlogic: Fix refcount leak in meson-secure-pwrc.c
        arm64: dts: renesas: Fix thermal-sensors on single-zone sensors
        x86/pmem: Fix platform-device leak in error path
        ARM: dts: ast2500-evb: fix board compatible
        ARM: dts: ast2600-evb: fix board compatible
        ARM: dts: ast2600-evb-a1: fix board compatible
        arm64: dts: mt8192: Fix idle-states nodes naming scheme
        arm64: dts: mt8192: Fix idle-states entry-method
        arm64: select TRACE_IRQFLAGS_NMI_SUPPORT
        arm64: cpufeature: Allow different PMU versions in ID_DFR0_EL1
        locking/lockdep: Fix lockdep_init_map_*() confusion
        arm64: dts: qcom: sc7180: Remove ipa_fw_mem node on trogdor
        soc: fsl: guts: machine variable might be unset
        block: fix infinite loop for invalid zone append
        ARM: dts: qcom: mdm9615: add missing PMIC GPIO reg
        ARM: OMAP2+: Fix refcount leak in omapdss_init_of
        ARM: OMAP2+: Fix refcount leak in omap3xxx_prm_late_init
        arm64: dts: qcom: sdm630: disable GPU by default
        arm64: dts: qcom: sdm630: fix the qusb2phy ref clock
        arm64: dts: qcom: sdm630: fix gpu's interconnect path
        arm64: dts: qcom: sdm636-sony-xperia-ganges-mermaid: correct sdc2 pinconf
        cpufreq: zynq: Fix refcount leak in zynq_get_revision
        regulator: qcom_smd: Fix pm8916_pldo range
        ACPI: APEI: Fix _EINJ vs EFI_MEMORY_SP
        ARM: dts: qcom-msm8974: fix irq type on blsp2_uart1
        soc: qcom: ocmem: Fix refcount leak in of_get_ocmem
        soc: qcom: aoss: Fix refcount leak in qmp_cooling_devices_register
        ARM: dts: qcom: pm8841: add required thermal-sensor-cells
        bus: hisi_lpc: fix missing platform_device_put() in hisi_lpc_acpi_probe()
        stack: Declare {randomize_,}kstack_offset to fix Sparse warnings
        arm64: dts: qcom: msm8916: Fix typo in pronto remoteproc node
        ACPI: APEI: explicit init of HEST and GHES in apci_init()
        drivers/iio: Remove all strcpy() uses
        ACPI: VIOT: Fix ACS setup
        arm64: dts: qcom: sm6125: Move sdc2 pinctrl from seine-pdx201 to sm6125
        arm64: dts: qcom: sm6125: Append -state suffix to pinctrl nodes
        arm64: dts: qcom: sm8250: add missing PCIe PHY clock-cells
        arm64: dts: mt7622: fix BPI-R64 WPS button
        arm64: tegra: Fixup SYSRAM references
        arm64: tegra: Update Tegra234 BPMP channel addresses
        arm64: tegra: Mark BPMP channels as no-memory-wc
        arm64: tegra: Fix SDMMC1 CD on P2888
        erofs: avoid consecutive detection for Highmem memory
        blk-mq: don't create hctx debugfs dir until q->debugfs_dir is created
        spi: Fix simplification of devm_spi_register_controller
        spi: tegra20-slink: fix UAF in tegra_slink_remove()
        hwmon: (drivetemp) Add module alias
        blktrace: Trace remapped requests correctly
        PM: domains: Ensure genpd_debugfs_dir exists before remove
        dm writecache: return void from functions
        dm writecache: count number of blocks read, not number of read bios
        dm writecache: count number of blocks written, not number of write bios
        dm writecache: count number of blocks discarded, not number of discard bios
        regulator: of: Fix refcount leak bug in of_get_regulation_constraints()
        soc: qcom: Make QCOM_RPMPD depend on PM
        arm64: dts: qcom: qcs404: Fix incorrect USB2 PHYs assignment
        irqdomain: Report irq number for NOMAP domains
        drivers/perf: arm_spe: Fix consistency of SYS_PMSCR_EL1.CX
        nohz/full, sched/rt: Fix missed tick-reenabling bug in dequeue_task_rt()
        x86/extable: Fix ex_handler_msr() print condition
        selftests/seccomp: Fix compile warning when CC=clang
        thermal/tools/tmon: Include pthread and time headers in tmon.h
        dm: return early from dm_pr_call() if DM device is suspended
        pwm: sifive: Simplify offset calculation for PWMCMP registers
        pwm: sifive: Ensure the clk is enabled exactly once per running PWM
        pwm: sifive: Shut down hardware only after pwmchip_remove() completed
        pwm: lpc18xx-sct: Reduce number of devm memory allocations
        pwm: lpc18xx-sct: Simplify driver by not using pwm_[gs]et_chip_data()
        pwm: lpc18xx: Fix period handling
        drm/dp: Export symbol / kerneldoc fixes for DP AUX bus
        drm/bridge: tc358767: Move (e)DP bridge endpoint parsing into dedicated function
        ath10k: do not enforce interrupt trigger type
        drm/st7735r: Fix module autoloading for Okaya RH128128T
        drm/panel: Fix build error when CONFIG_DRM_PANEL_SAMSUNG_ATNA33XC20=y && CONFIG_DRM_DISPLAY_HELPER=m
        wifi: rtlwifi: fix error codes in rtl_debugfs_set_write_h2c()
        ath11k: fix netdev open race
        drm/mipi-dbi: align max_chunk to 2 in spi_transfer
        ath11k: Fix incorrect debug_mask mappings
        drm/radeon: fix potential buffer overflow in ni_set_mc_special_registers()
        drm/mediatek: Modify dsi funcs to atomic operations
        drm/mediatek: Separate poweron/poweroff from enable/disable and define new funcs
        drm/mediatek: Add pull-down MIPI operation in mtk_dsi_poweroff function
        drm/meson: encoder_hdmi: switch to bridge DRM_BRIDGE_ATTACH_NO_CONNECTOR
        drm/meson: encoder_hdmi: Fix refcount leak in meson_encoder_hdmi_init
        drm/bridge: lt9611uxc: Cancel only driver's work
        i2c: npcm: Remove own slave addresses 2:10
        i2c: npcm: Correct slave role behavior
        i2c: mxs: Silence a clang warning
        virtio-gpu: fix a missing check to avoid NULL dereference
        drm/shmem-helper: Unexport drm_gem_shmem_create_with_handle()
        drm/shmem-helper: Export dedicated wrappers for GEM object functions
        drm/shmem-helper: Pass GEM shmem object in public interfaces
        drm/virtio: Fix NULL vs IS_ERR checking in virtio_gpu_object_shmem_init
        drm: adv7511: override i2c address of cec before accessing it
        crypto: sun8i-ss - do not allocate memory when handling hash requests
        crypto: sun8i-ss - fix error codes in allocate_flows()
        net: fix sk_wmem_schedule() and sk_rmem_schedule() errors
        can: netlink: allow configuring of fixed bit rates without need for do_set_bittiming callback
        can: netlink: allow configuring of fixed data bit rates without need for do_set_data_bittiming callback
        i2c: Fix a potential use after free
        crypto: sun8i-ss - fix infinite loop in sun8i_ss_setup_ivs()
        media: atmel: atmel-sama7g5-isc: fix warning in configs without OF
        media: tw686x: Register the irq at the end of probe
        media: imx-jpeg: Correct some definition according specification
        media: imx-jpeg: Leave a blank space before the configuration data
        media: imx-jpeg: Add pm-runtime support for imx-jpeg
        media: imx-jpeg: use NV12M to represent non contiguous NV12
        media: imx-jpeg: Set V4L2_BUF_FLAG_LAST at eos
        media: imx-jpeg: Refactor function mxc_jpeg_parse
        media: imx-jpeg: Identify and handle precision correctly
        media: imx-jpeg: Handle source change in a function
        media: imx-jpeg: Support dynamic resolution change
        media: imx-jpeg: Align upwards buffer size
        media: imx-jpeg: Implement drain using v4l2-mem2mem helpers
        ath9k: fix use-after-free in ath9k_hif_usb_rx_cb
        wifi: iwlegacy: 4965: fix potential off-by-one overflow in il4965_rs_fill_link_cmd()
        drm/radeon: fix incorrrect SPDX-License-Identifiers
        rcutorture: Warn on individual rcu_torture_init() error conditions
        rcutorture: Don't cpuhp_remove_state() if cpuhp_setup_state() failed
        rcutorture: Fix ksoftirqd boosting timing and iteration
        test_bpf: fix incorrect netdev features
        crypto: ccp - During shutdown, check SEV data pointer before using
        drm: bridge: adv7511: Add check for mipi_dsi_driver_register
        media: imx-jpeg: Disable slot interrupt when frame done
        drm/mcde: Fix refcount leak in mcde_dsi_bind
        media: hdpvr: fix error value returns in hdpvr_read
        media: v4l2-mem2mem: prevent pollerr when last_buffer_dequeued is set
        media: driver/nxp/imx-jpeg: fix a unexpected return value problem
        media: tw686x: Fix memory leak in tw686x_video_init
        drm/vc4: plane: Remove subpixel positioning check
        drm/vc4: plane: Fix margin calculations for the right/bottom edges
        drm/bridge: Add a function to abstract away panels
        drm/vc4: dsi: Switch to devm_drm_of_get_bridge
        drm/vc4: Use of_device_get_match_data()
        drm/vc4: dsi: Release workaround buffer and DMA
        drm/vc4: dsi: Correct DSI divider calculations
        drm/vc4: dsi: Correct pixel order for DSI0
        drm/vc4: dsi: Register dsi0 as the correct vc4 encoder type
        drm/vc4: dsi: Fix dsi0 interrupt support
        drm/vc4: dsi: Add correct stop condition to vc4_dsi_encoder_disable iteration
        drm/vc4: hdmi: Fix HPD GPIO detection
        drm/vc4: hdmi: Avoid full hdmi audio fifo writes
        drm/vc4: hdmi: Reset HDMI MISC_CONTROL register
        drm/vc4: hdmi: Fix timings for interlaced modes
        drm/vc4: hdmi: Correct HDMI timing registers for interlaced modes
        crypto: arm64/gcm - Select AEAD for GHASH_ARM64_CE
        selftests/xsk: Destroy BPF resources only when ctx refcount drops to 0
        drm/rockchip: vop: Don't crash for invalid duplicate_state()
        drm/rockchip: Fix an error handling path rockchip_dp_probe()
        drm/mediatek: dpi: Remove output format of YUV
        drm/mediatek: dpi: Only enable dpi after the bridge is enabled
        drm: bridge: sii8620: fix possible off-by-one
        hinic: Use the bitmap API when applicable
        net: hinic: fix bug that ethtool get wrong stats
        net: hinic: avoid kernel hung in hinic_get_stats64()
        drm/msm/mdp5: Fix global state lock backoff
        crypto: hisilicon/sec - don't sleep when in softirq
        crypto: hisilicon - Kunpeng916 crypto driver don't sleep when in softirq
        media: platform: mtk-mdp: Fix mdp_ipi_comm structure alignment
        drm/msm: Avoid dirtyfb stalls on video mode displays (v2)
        drm/msm/dpu: Fix for non-visible planes
        mt76: mt76x02u: fix possible memory leak in __mt76x02u_mcu_send_msg
        mt76: mt7615: do not update pm stats in case of error
        ieee80211: add EHT 1K aggregation definitions
        mt76: mt7921: fix aggregation subframes setting to HE max
        mt76: mt7921: enlarge maximum VHT MPDU length to 11454
        mediatek: mt76: mac80211: Fix missing of_node_put() in mt76_led_init()
        mediatek: mt76: eeprom: fix missing of_node_put() in mt76_find_power_limits_node()
        skmsg: Fix invalid last sg check in sk_msg_recvmsg()
        drm/exynos/exynos7_drm_decon: free resources when clk_set_parent() failed.
        tcp: make retransmitted SKB fit into the send window
        libbpf: Fix the name of a reused map
        selftests: timers: valid-adjtimex: build fix for newer toolchains
        selftests: timers: clocksource-switch: fix passing errors from child
        bpf: Fix subprog names in stack traces.
        fs: check FMODE_LSEEK to control internal pipe splicing
        media: cedrus: h265: Fix flag name
        media: hantro: postproc: Fix motion vector space size
        media: hantro: Simplify postprocessor
        media: hevc: Embedded indexes in RPS
        media: staging: media: hantro: Fix typos
        wifi: wil6210: debugfs: fix info leak in wil_write_file_wmi()
        wifi: p54: Fix an error handling path in p54spi_probe()
        wifi: p54: add missing parentheses in p54_flush()
        selftests/bpf: fix a test for snprintf() overflow
        libbpf: fix an snprintf() overflow check
        can: pch_can: do not report txerr and rxerr during bus-off
        can: rcar_can: do not report txerr and rxerr during bus-off
        can: sja1000: do not report txerr and rxerr during bus-off
        can: hi311x: do not report txerr and rxerr during bus-off
        can: sun4i_can: do not report txerr and rxerr during bus-off
        can: kvaser_usb_hydra: do not report txerr and rxerr during bus-off
        can: kvaser_usb_leaf: do not report txerr and rxerr during bus-off
        can: usb_8dev: do not report txerr and rxerr during bus-off
        can: error: specify the values of data[5..7] of CAN error frames
        can: pch_can: pch_can_error(): initialize errc before using it
        Bluetooth: hci_intel: Add check for platform_driver_register
        i2c: cadence: Support PEC for SMBus block read
        i2c: mux-gpmux: Add of_node_put() when breaking out of loop
        wifi: wil6210: debugfs: fix uninitialized variable use in `wil_write_file_wmi()`
        wifi: iwlwifi: mvm: fix double list_add at iwl_mvm_mac_wake_tx_queue
        wifi: libertas: Fix possible refcount leak in if_usb_probe()
        media: cedrus: hevc: Add check for invalid timestamp
        net/mlx5e: Remove WARN_ON when trying to offload an unsupported TLS cipher/version
        net/mlx5e: Fix the value of MLX5E_MAX_RQ_NUM_MTTS
        net/mlx5: Adjust log_max_qp to be 18 at most
        crypto: hisilicon/hpre - don't use GFP_KERNEL to alloc mem during softirq
        crypto: inside-secure - Add missing MODULE_DEVICE_TABLE for of
        crypto: hisilicon/sec - fix auth key size error
        inet: add READ_ONCE(sk->sk_bound_dev_if) in INET_MATCH()
        ipv6: add READ_ONCE(sk->sk_bound_dev_if) in INET6_MATCH()
        net: allow unbound socket for packets in VRF when tcp_l3mdev_accept set
        netdevsim: fib: Fix reference count leak on route deletion failure
        wifi: rtw88: check the return value of alloc_workqueue()
        iavf: Fix max_rate limiting
        iavf: Fix 'tc qdisc show' listing too many queues
        netdevsim: Avoid allocation warnings triggered from user space
        net: rose: fix netdev reference changes
        net: ionic: fix error check for vlan flags in ionic_set_nic_features()
        dccp: put dccp_qpolicy_full() and dccp_qpolicy_push() in the same lock
        net: usb: make USB_RTL8153_ECM non user configurable
        wireguard: ratelimiter: use hrtimer in selftest
        wireguard: allowedips: don't corrupt stack when detecting overflow
        HID: amd_sfh: Don't show client init failed as error when discovery fails
        clk: renesas: r9a06g032: Fix UART clkgrp bitsel
        mtd: maps: Fix refcount leak in of_flash_probe_versatile
        mtd: maps: Fix refcount leak in ap_flash_init
        mtd: rawnand: meson: Fix a potential double free issue
        of: check previous kernel's ima-kexec-buffer against memory bounds
        scsi: qla2xxx: edif: Reduce Initiator-Initiator thrashing
        scsi: qla2xxx: edif: Fix potential stuck session in sa update
        scsi: qla2xxx: edif: Reduce connection thrash
        scsi: qla2xxx: edif: Fix inconsistent check of db_flags
        scsi: qla2xxx: edif: Synchronize NPIV deletion with authentication application
        scsi: qla2xxx: edif: Add retry for ELS passthrough
        scsi: qla2xxx: edif: Fix n2n discovery issue with secure target
        scsi: qla2xxx: edif: Fix n2n login retry for secure device
        KVM: SVM: Unwind "speculative" RIP advancement if INTn injection "fails"
        KVM: SVM: Stuff next_rip on emulated INT3 injection if NRIPS is supported
        phy: samsung: exynosautov9-ufs: correct TSRV register configurations
        PCI: microchip: Fix refcount leak in mc_pcie_init_irq_domains()
        PCI: tegra194: Fix PM error handling in tegra_pcie_config_ep()
        HID: cp2112: prevent a buffer overflow in cp2112_xfer()
        mtd: sm_ftl: Fix deadlock caused by cancel_work_sync in sm_release
        mtd: partitions: Fix refcount leak in parse_redboot_of
        mtd: parsers: ofpart: Fix refcount leak in bcm4908_partitions_fw_offset
        mtd: st_spi_fsm: Add a clk_disable_unprepare() in .probe()'s error path
        PCI: mediatek-gen3: Fix refcount leak in mtk_pcie_init_irq_domains()
        fpga: altera-pr-ip: fix unsigned comparison with less than zero
        usb: host: Fix refcount leak in ehci_hcd_ppc_of_probe
        usb: ohci-nxp: Fix refcount leak in ohci_hcd_nxp_probe
        usb: gadget: tegra-xudc: Fix error check in tegra_xudc_powerdomain_init()
        usb: xhci: tegra: Fix error check
        netfilter: xtables: Bring SPDX identifier back
        scsi: qla2xxx: edif: Send LOGO for unexpected IKE message
        scsi: qla2xxx: edif: Reduce disruption due to multiple app start
        scsi: qla2xxx: edif: Fix no login after app start
        scsi: qla2xxx: edif: Tear down session if keys have been removed
        scsi: qla2xxx: edif: Fix session thrash
        scsi: qla2xxx: edif: Fix no logout on delete for N2N
        iio: accel: bma400: Fix the scale min and max macro values
        platform/chrome: cros_ec: Always expose last resume result
        iio: accel: bma400: Reordering of header files
        clk: mediatek: reset: Fix written reset bit offset
        lib/test_hmm: avoid accessing uninitialized pages
        memremap: remove support for external pgmap refcounts
        mm/memremap: fix memunmap_pages() race with get_dev_pagemap()
        KVM: Don't set Accessed/Dirty bits for ZERO_PAGE
        mwifiex: Ignore BTCOEX events from the 88W8897 firmware
        mwifiex: fix sleep in atomic context bugs caused by dev_coredumpv
        scsi: iscsi: Allow iscsi_if_stop_conn() to be called from kernel
        scsi: iscsi: Add helper to remove a session from the kernel
        scsi: iscsi: Fix session removal on shutdown
        dmaengine: dw-edma: Fix eDMA Rd/Wr-channels and DMA-direction semantics
        mtd: dataflash: Add SPI ID table
        clk: qcom: camcc-sm8250: Fix halt on boot by reducing driver's init level
        misc: rtsx: Fix an error handling path in rtsx_pci_probe()
        driver core: fix potential deadlock in __driver_attach
        clk: qcom: clk-krait: unlock spin after mux completion
        clk: qcom: gcc-msm8939: Add missing SYSTEM_MM_NOC_BFDCD_CLK_SRC
        clk: qcom: gcc-msm8939: Fix bimc_ddr_clk_src rcgr base address
        clk: qcom: gcc-msm8939: Add missing system_mm_noc_bfdcd_clk_src
        clk: qcom: gcc-msm8939: Point MM peripherals to system_mm_noc clock
        usb: host: xhci: use snprintf() in xhci_decode_trb()
        RDMA/rxe: Fix deadlock in rxe_do_local_ops()
        clk: qcom: ipq8074: fix NSS core PLL-s
        clk: qcom: ipq8074: SW workaround for UBI32 PLL lock
        clk: qcom: ipq8074: fix NSS port frequency tables
        clk: qcom: ipq8074: set BRANCH_HALT_DELAY flag for UBI clocks
        clk: qcom: camcc-sdm845: Fix topology around titan_top power domain
        clk: qcom: camcc-sm8250: Fix topology around titan_top power domain
        clk: qcom: clk-rcg2: Fail Duty-Cycle configuration if MND divider is not enabled.
        clk: qcom: clk-rcg2: Make sure to not write d=0 to the NMD register
        mm/mempolicy: fix get_nodes out of bound access
        PCI: dwc: Stop link on host_init errors and de-initialization
        PCI: dwc: Add unroll iATU space support to dw_pcie_disable_atu()
        PCI: dwc: Disable outbound windows only for controllers using iATU
        PCI: dwc: Set INCREASE_REGION_SIZE flag based on limit address
        PCI: dwc: Deallocate EPC memory on dw_pcie_ep_init() errors
        PCI: dwc: Always enable CDM check if "snps,enable-cdm-check" exists
        soundwire: bus_type: fix remove and shutdown support
        soundwire: revisit driver bind/unbind and callbacks
        KVM: arm64: Don't return from void function
        dmaengine: sf-pdma: Add multithread support for a DMA channel
        PCI: endpoint: Don't stop controller when unbinding endpoint function
        scsi: qla2xxx: Check correct variable in qla24xx_async_gffid()
        intel_th: Fix a resource leak in an error handling path
        intel_th: msu-sink: Potential dereference of null pointer
        intel_th: msu: Fix vmalloced buffers
        binder: fix redefinition of seq_file attributes
        staging: rtl8192u: Fix sleep in atomic context bug in dm_fsync_timer_callback
        mmc: sdhci-of-esdhc: Fix refcount leak in esdhc_signal_voltage_switch
        mmc: mxcmmc: Silence a clang warning
        mmc: renesas_sdhi: Get the reset handle early in the probe
        memstick/ms_block: Fix some incorrect memory allocation
        memstick/ms_block: Fix a memory leak
        mmc: sdhci-of-at91: fix set_uhs_signaling rewriting of MC1R
        of: device: Fix missing of_node_put() in of_dma_set_restricted_buffer
        mmc: block: Add single read for 4k sector cards
        KVM: s390: pv: leak the topmost page table when destroy fails
        PCI/portdrv: Don't disable AER reporting in get_port_device_capability()
        PCI: qcom: Set up rev 2.1.0 PARF_PHY before enabling clocks
        scsi: smartpqi: Fix DMA direction for RAID requests
        xtensa: iss/network: provide release() callback
        xtensa: iss: fix handling error cases in iss_net_configure()
        usb: gadget: udc: amd5536 depends on HAS_DMA
        usb: aspeed-vhub: Fix refcount leak bug in ast_vhub_init_desc()
        usb: dwc3: core: Deprecate GCTL.CORESOFTRESET
        usb: dwc3: core: Do not perform GCTL_CORE_SOFTRESET during bootup
        usb: dwc3: qcom: fix missing optional irq warnings
        eeprom: idt_89hpesx: uninitialized data in idt_dbgfs_csr_write()
        phy: stm32: fix error return in stm32_usbphyc_phy_init
        interconnect: imx: fix max_node_id
        um: random: Don't initialise hwrng struct with zero
        RDMA/irdma: Fix a window for use-after-free
        RDMA/irdma: Fix VLAN connection with wildcard address
        RDMA/irdma: Fix setting of QP context err_rq_idx_valid field
        RDMA/rtrs-srv: Fix modinfo output for stringify
        RDMA/rtrs: Fix warning when use poll mode on client side.
        RDMA/rtrs: Replace duplicate check with is_pollqueue helper
        RDMA/rtrs: Introduce destroy_cq helper
        RDMA/rtrs: Do not allow sessname to contain special symbols / and .
        RDMA/rtrs: Rename rtrs_sess to rtrs_path
        RDMA/rtrs-srv: Rename rtrs_srv_sess to rtrs_srv_path
        RDMA/rtrs-clt: Rename rtrs_clt_sess to rtrs_clt_path
        RDMA/rtrs-clt: Replace list_next_or_null_rr_rcu with an inline function
        RDMA/qedr: Fix potential memory leak in __qedr_alloc_mr()
        RDMA/hns: Fix incorrect clearing of interrupt status register
        RDMA/siw: Fix duplicated reported IW_CM_EVENT_CONNECT_REPLY event
        iio: cros: Register FIFO callback after sensor is registered
        clk: qcom: gcc-msm8939: Fix weird field spacing in ftbl_gcc_camss_cci_clk
        RDMA/hfi1: fix potential memory leak in setup_base_ctxt()
        gpio: gpiolib-of: Fix refcount bugs in of_mm_gpiochip_add_data()
        HID: mcp2221: prevent a buffer overflow in mcp_smbus_write()
        HID: amd_sfh: Add NULL check for hid device
        dmaengine: imx-dma: Cast of_device_get_match_data() with (uintptr_t)
        scripts/gdb: lx-dmesg: read records individually
        scripts/gdb: fix 'lx-dmesg' on 32 bits arch
        RDMA/rxe: Fix mw bind to allow any consumer key portion
        mmc: cavium-octeon: Add of_node_put() when breaking out of loop
        mmc: cavium-thunderx: Add of_node_put() when breaking out of loop
        HID: alps: Declare U1_UNICORN_LEGACY support
        RDMA/rxe: For invalidate compare according to set keys in mr
        PCI: tegra194: Fix Root Port interrupt handling
        PCI: tegra194: Fix link up retry sequence
        HID: amd_sfh: Handle condition of "no sensors"
        USB: serial: fix tty-port initialized comments
        usb: cdns3: change place of 'priv_ep' assignment in cdns3_gadget_ep_dequeue(), cdns3_gadget_ep_enable()
        mtd: spi-nor: fix spi_nor_spimem_setup_op() call in spi_nor_erase_{sector,chip}()
        KVM: nVMX: Set UMIP bit CR4_FIXED1 MSR when emulating UMIP
        platform/olpc: Fix uninitialized data in debugfs write
        RDMA/srpt: Duplicate port name members
        RDMA/srpt: Introduce a reference count in struct srpt_device
        RDMA/srpt: Fix a use-after-free
        android: binder: stop saving a pointer to the VMA
        mm/mmap.c: fix missing call to vm_unacct_memory in mmap_region
        selftests: kvm: set rax before vmcall
        of/fdt: declared return type does not match actual return type
        RDMA/mlx5: Add missing check for return value in get namespace flow
        RDMA/rxe: Add memory barriers to kernel queues
        RDMA/rxe: Remove the is_user members of struct rxe_sq/rxe_rq/rxe_srq
        RDMA/rxe: Fix error unwind in rxe_create_qp()
        block/rnbd-srv: Set keep_id to true after mutex_trylock
        null_blk: fix ida error handling in null_add_dev()
        nvme: use command_id instead of req->tag in trace_nvme_complete_rq()
        nvme: define compat_ioctl again to unbreak 32-bit userspace.
        nvme: disable namespace access for unsupported metadata
        nvme: don't return an error from nvme_configure_metadata
        nvme: catch -ENODEV from nvme_revalidate_zones again
        block/bio: remove duplicate append pages code
        block: ensure iov_iter advances for added pages
        jbd2: fix outstanding credits assert in jbd2_journal_commit_transaction()
        ext4: recover csum seed of tmp_inode after migrating to extents
        jbd2: fix assertion 'jh->b_frozen_data == NULL' failure when journal aborted
        usb: cdns3: Don't use priv_dev uninitialized in cdns3_gadget_ep_enable()
        opp: Fix error check in dev_pm_opp_attach_genpd()
        ASoC: cros_ec_codec: Fix refcount leak in cros_ec_codec_platform_probe
        ASoC: samsung: Fix error handling in aries_audio_probe
        ASoC: imx-audmux: Silence a clang warning
        ASoC: mediatek: mt8173: Fix refcount leak in mt8173_rt5650_rt5676_dev_probe
        ASoC: mt6797-mt6351: Fix refcount leak in mt6797_mt6351_dev_probe
        ASoC: codecs: da7210: add check for i2c_add_driver
        ASoC: mediatek: mt8173-rt5650: Fix refcount leak in mt8173_rt5650_dev_probe
        serial: 8250: Export ICR access helpers for internal use
        serial: 8250: dma: Allow driver operations before starting DMA transfers
        serial: 8250_dw: Store LSR into lsr_saved_flags in dw8250_tx_wait_empty()
        ASoC: codecs: msm8916-wcd-digital: move gains from SX_TLV to S8_TLV
        ASoC: codecs: wcd9335: move gains from SX_TLV to S8_TLV
        rpmsg: char: Add mutex protection for rpmsg_eptdev_open()
        rpmsg: mtk_rpmsg: Fix circular locking dependency
        remoteproc: k3-r5: Fix refcount leak in k3_r5_cluster_of_init
        selftests/livepatch: better synchronize test_klp_callbacks_busy
        profiling: fix shift too large makes kernel panic
        remoteproc: imx_rproc: Fix refcount leak in imx_rproc_addr_init
        ASoC: samsung: h1940_uda1380: include proepr GPIO consumer header
        powerpc/perf: Optimize clearing the pending PMI and remove WARN_ON for PMI check in power_pmu_disable
        ASoC: samsung: change gpiod_speaker_power and rx1950_audio from global to static variables
        tty: n_gsm: Delete gsmtty open SABM frame when config requester
        tty: n_gsm: fix user open not possible at responder until initiator open
        tty: n_gsm: fix tty registration before control channel open
        tty: n_gsm: fix wrong queuing behavior in gsm_dlci_data_output()
        tty: n_gsm: fix missing timer to handle stalled links
        tty: n_gsm: fix non flow control frames during mux flow off
        tty: n_gsm: fix packet re-transmission without open control channel
        tty: n_gsm: fix race condition in gsmld_write()
        tty: n_gsm: fix resource allocation order in gsm_activate_mux()
        ASoC: qcom: Fix missing of_node_put() in asoc_qcom_lpass_cpu_platform_probe()
        ASoC: imx-card: Fix DSD/PDM mclk frequency
        remoteproc: qcom: wcnss: Fix handling of IRQs
        vfio/ccw: Do not change FSM state in subchannel event
        serial: 8250_fsl: Don't report FE, PE and OE twice
        tty: n_gsm: fix wrong T1 retry count handling
        tty: n_gsm: fix DM command
        tty: n_gsm: fix missing corner cases in gsmld_poll()
        MIPS: vdso: Utilize __pa() for gic_pfn
        swiotlb: fail map correctly with failed io_tlb_default_mem
        ASoC: mt6359: Fix refcount leak bug
        serial: 8250_bcm7271: Save/restore RTS in suspend/resume
        iommu/exynos: Handle failed IOMMU device registration properly
        9p: fix a bunch of checkpatch warnings
        9p: Drop kref usage
        9p: Add client parameter to p9_req_put()
        net: 9p: fix refcount leak in p9_read_work() error handling
        MIPS: Fixed __debug_virt_addr_valid()
        rpmsg: qcom_smd: Fix refcount leak in qcom_smd_parse_edge
        kfifo: fix kfifo_to_user() return type
        lib/smp_processor_id: fix imbalanced instrumentation_end() call
        proc: fix a dentry lock race between release_task and lookup
        remoteproc: qcom: pas: Check if coredump is enabled
        remoteproc: sysmon: Wait for SSCTL service to come up
        mfd: t7l66xb: Drop platform disable callback
        mfd: max77620: Fix refcount leak in max77620_initialise_fps
        iommu/arm-smmu: qcom_iommu: Add of_node_put() when breaking out of loop
        perf tools: Fix dso_id inode generation comparison
        s390/dump: fix old lowcore virtual vs physical address confusion
        s390/maccess: fix semantics of memcpy_real() and its callers
        s390/crash: fix incorrect number of bytes to copy to user space
        s390/zcore: fix race when reading from hardware system area
        ASoC: fsl_asrc: force cast the asrc_format type
        ASoC: fsl-asoc-card: force cast the asrc_format type
        ASoC: fsl_easrc: use snd_pcm_format_t type for sample_format
        ASoC: imx-card: use snd_pcm_format_t type for asrc_format
        ASoC: qcom: q6dsp: Fix an off-by-one in q6adm_alloc_copp()
        fuse: Remove the control interface for virtio-fs
        ASoC: audio-graph-card: Add of_node_put() in fail path
        watchdog: sp5100_tco: Fix a memory leak of EFCH MMIO resource
        watchdog: armada_37xx_wdt: check the return value of devm_ioremap() in armada_37xx_wdt_probe()
        video: fbdev: amba-clcd: Fix refcount leak bugs
        video: fbdev: sis: fix typos in SiS_GetModeID()
        ASoC: mchp-spdifrx: disable end of block interrupt on failures
        powerpc/32: Call mmu_mark_initmem_nx() regardless of data block mapping.
        powerpc/32: Do not allow selection of e5500 or e6500 CPUs on PPC32
        powerpc/iommu: Fix iommu_table_in_use for a small default DMA window case
        powerpc/pci: Prefer PCI domain assignment via DT 'linux,pci-domain' and alias
        tty: serial: fsl_lpuart: correct the count of break characters
        s390/dump: fix os_info virtual vs physical address confusion
        s390/smp: cleanup target CPU callback starting
        s390/smp: cleanup control register update routines
        s390/maccess: rework absolute lowcore accessors
        s390/smp: enforce lowcore protection on CPU restart
        f2fs: fix to remove F2FS_COMPR_FL and tag F2FS_NOCOMP_FL at the same time
        powerpc/spufs: Fix refcount leak in spufs_init_isolated_loader
        powerpc/xive: Fix refcount leak in xive_get_max_prio
        powerpc/cell/axon_msi: Fix refcount leak in setup_msi_msg_address
        perf symbol: Fail to read phdr workaround
        kprobes: Forbid probing on trampoline and BPF code areas
        x86/bus_lock: Don't assume the init value of DEBUGCTLMSR.BUS_LOCK_DETECT to be zero
        powerpc/pci: Fix PHB numbering when using opal-phbid
        genelf: Use HAVE_LIBCRYPTO_SUPPORT, not the never defined HAVE_LIBCRYPTO
        scripts/faddr2line: Fix vmlinux detection on arm64
        sched/deadline: Merge dl_task_can_attach() and dl_cpu_busy()
        sched, cpuset: Fix dl_cpu_busy() panic due to empty cs->cpus_allowed
        x86/numa: Use cpumask_available instead of hardcoded NULL check
        video: fbdev: arkfb: Fix a divide-by-zero bug in ark_set_pixclock()
        tools/thermal: Fix possible path truncations
        sched: Fix the check of nr_running at queue wakelist
        sched: Remove the limitation of WF_ON_CPU on wakelist if wakee cpu is idle
        sched/core: Do not requeue task on CPU excluded from cpus_mask
        x86/entry: Build thunk_$(BITS) only if CONFIG_PREEMPTION=y
        f2fs: allow compression for mmap files in compress_mode=user
        f2fs: do not allow to decompress files have FI_COMPRESS_RELEASED
        video: fbdev: vt8623fb: Check the size of screen before memset_io()
        video: fbdev: arkfb: Check the size of screen before memset_io()
        video: fbdev: s3fb: Check the size of screen before memset_io()
        scsi: ufs: core: Correct ufshcd_shutdown() flow
        scsi: zfcp: Fix missing auto port scan and thus missing target ports
        scsi: qla2xxx: Fix imbalance vha->vref_count
        scsi: qla2xxx: Fix discovery issues in FC-AL topology
        scsi: qla2xxx: Turn off multi-queue for 8G adapters
        scsi: qla2xxx: Fix crash due to stale SRB access around I/O timeouts
        scsi: qla2xxx: Fix excessive I/O error messages by default
        scsi: qla2xxx: Fix erroneous mailbox timeout after PCI error injection
        scsi: qla2xxx: Wind down adapter after PCIe error
        scsi: qla2xxx: Fix losing FCP-2 targets on long port disable with I/Os
        scsi: qla2xxx: Fix losing target when it reappears during delete
        scsi: qla2xxx: Fix losing FCP-2 targets during port perturbation tests
        x86/bugs: Enable STIBP for IBPB mitigated RETBleed
        ftrace/x86: Add back ftrace_expected assignment
        x86/kprobes: Update kcb status flag after singlestepping
        x86/olpc: fix 'logical not is only applied to the left hand side'
        SMB3: fix lease break timeout when multiple deferred close handles for the same file.
        posix-cpu-timers: Cleanup CPU timers before freeing them during exec
        Input: gscps2 - check return value of ioremap() in gscps2_probe()
        __follow_mount_rcu(): verify that mount_lock remains unchanged
        spmi: trace: fix stack-out-of-bound access in SPMI tracing functions
        drm/mediatek: Allow commands to be sent during video mode
        drm/mediatek: Keep dsi as LP00 before dcs cmds transfer
        crypto: blake2s - remove shash module
        drm/dp/mst: Read the extended DPCD capabilities during system resume
        drm/vc4: drv: Adopt the dma configuration from the HVS or V3D component
        usbnet: smsc95xx: Don't clear read-only PHY interrupt
        usbnet: smsc95xx: Avoid link settings race on interrupt reception
        usbnet: smsc95xx: Forward PHY interrupts to PHY driver to avoid polling
        usbnet: smsc95xx: Fix deadlock on runtime resume
        firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails
        scsi: lpfc: Fix EEH support for NVMe I/O
        scsi: lpfc: SLI path split: Refactor lpfc_iocbq
        scsi: lpfc: SLI path split: Refactor fast and slow paths to native SLI4
        scsi: lpfc: SLI path split: Refactor SCSI paths
        scsi: lpfc: Remove extra atomic_inc on cmd_pending in queuecommand after VMID
        intel_th: pci: Add Meteor Lake-P support
        intel_th: pci: Add Raptor Lake-S PCH support
        intel_th: pci: Add Raptor Lake-S CPU support
        KVM: set_msr_mce: Permit guests to ignore single-bit ECC errors
        KVM: x86: Signal #GP, not -EPERM, on bad WRMSR(MCi_CTL/STATUS)
        iommu/vt-d: avoid invalid memory access via node_online(NUMA_NO_NODE)
        PCI/AER: Iterate over error counters instead of error strings
        PCI: qcom: Power on PHY before IPQ8074 DBI register accesses
        serial: 8250_pci: Refactor the loop in pci_ite887x_init()
        serial: 8250_pci: Replace dev_*() by pci_*() macros
        serial: 8250: Fold EndRun device support into OxSemi Tornado code
        serial: 8250: Add proper clock handling for OxSemi PCIe devices
        tty: 8250: Add support for Brainboxes PX cards.
        dm writecache: set a default MAX_WRITEBACK_JOBS
        kexec, KEYS, s390: Make use of built-in and secondary keyring for signature verification
        dm thin: fix use-after-free crash in dm_sm_register_threshold_callback
        net/9p: Initialize the iounit field during fid creation
        ARM: remove some dead code
        timekeeping: contribute wall clock to rng on time change
        locking/csd_lock: Change csdlock_debug from early_param to __setup
        block: remove the struct blk_queue_ctx forward declaration
        block: don't allow the same type rq_qos add more than once
        btrfs: ensure pages are unlocked on cow_file_range() failure
        btrfs: reset block group chunk force if we have to wait
        btrfs: properly flag filesystem with BTRFS_FEATURE_INCOMPAT_BIG_METADATA
        ACPI: CPPC: Do not prevent CPPC from working in the future
        powerpc/powernv/kvm: Use darn for H_RANDOM on Power9
        KVM: x86/pmu: Introduce the ctrl_mask value for fixed counter
        KVM: VMX: Mark all PERF_GLOBAL_(OVF)_CTRL bits reserved if there's no vPMU
        KVM: x86/pmu: Ignore pmu->global_ctrl check if vPMU doesn't support global_ctrl
        KVM: VMX: Add helper to check if the guest PMU has PERF_GLOBAL_CTRL
        KVM: nVMX: Attempt to load PERF_GLOBAL_CTRL on nVMX xfer iff it exists
        dm raid: fix address sanitizer warning in raid_status
        dm raid: fix address sanitizer warning in raid_resume
        tracing: Add '__rel_loc' using trace event macros
        tracing: Avoid -Warray-bounds warning for __rel_loc macro
        ext4: update s_overhead_clusters in the superblock during an on-line resize
        ext4: fix extent status tree race in writeback error recovery path
        ext4: add EXT4_INODE_HAS_XATTR_SPACE macro in xattr.h
        ext4: fix use-after-free in ext4_xattr_set_entry
        ext4: correct max_inline_xattr_value_size computing
        ext4: correct the misjudgment in ext4_iget_extra_inode
        ext4: fix warning in ext4_iomap_begin as race between bmap and write
        ext4: check if directory block is within i_size
        ext4: make sure ext4_append() always allocates new block
        ext4: remove EA inode entry from mbcache on inode eviction
        ext4: use kmemdup() to replace kmalloc + memcpy
        ext4: unindent codeblock in ext4_xattr_block_set()
        ext4: fix race when reusing xattr blocks
        KEYS: asymmetric: enforce SM2 signature use pkey algo
        tpm: eventlog: Fix section mismatch for DEBUG_SECTION_MISMATCH
        xen-blkback: fix persistent grants negotiation
        xen-blkback: Apply 'feature_persistent' parameter when connect
        xen-blkfront: Apply 'feature_persistent' parameter when connect
        powerpc: Fix eh field when calling lwarx on PPC32
        tracing: Use a struct alignof to determine trace event field alignment
        net_sched: cls_route: remove from list when handle is 0
        mac80211: fix a memory leak where sta_info is not freed
        tcp: fix over estimation in sk_forced_mem_schedule()
        crypto: lib/blake2s - reduce stack frame usage in self test
        Revert "mwifiex: fix sleep in atomic context bugs caused by dev_coredumpv"
        Revert "s390/smp: enforce lowcore protection on CPU restart"
        drm/bridge: tc358767: Fix (e)DP bridge endpoint parsing in dedicated function
        net: phy: smsc: Disable Energy Detect Power-Down in interrupt mode
        drm/vc4: change vc4_dma_range_matches from a global to static
        tracing/perf: Avoid -Warray-bounds warning for __rel_loc macro
        drm/msm: Fix dirtyfb refcounting
        drm/meson: Fix refcount leak in meson_encoder_hdmi_init
        io_uring: mem-account pbuf buckets
        Revert "net: usb: ax88179_178a needs FLAG_SEND_ZLP"
        Bluetooth: L2CAP: Fix l2cap_global_chan_by_psm regression
        drm/bridge: Move devm_drm_of_get_bridge to bridge/panel.c
        scsi: lpfc: Fix locking for lpfc_sli_iocbq_lookup()
        scsi: lpfc: Fix element offset in __lpfc_sli_release_iocbq_s4()
        scsi: lpfc: Resolve some cleanup issues following SLI path refactoring
        Linux 5.15.61

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Iec359ed301bcbcd6e19b67ee8534418fab26850b
 2022-09-21 17:30:12 +02:00
Kees Cook
abd3622f65 kasan: test: Silence GCC 12 warnings 
[ Upstream commit aaf50b1969d7933a51ea421b11432a7fb90974e3 ]

GCC 12 continues to get smarter about array accesses. The KASAN tests
are expecting to explicitly test out-of-bounds conditions at run-time,
so hide the variable from GCC, to avoid warnings like:

../lib/test_kasan.c: In function 'ksize_uaf':
../lib/test_kasan.c:790:61: warning: array subscript 120 is outside array bounds of 'void[120]' [-Warray-bounds]
  790 |         KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)ptr)[size]);
      |                                       ~~~~~~~~~~~~~~~~~~~~~~^~~~~~
../lib/test_kasan.c:97:9: note: in definition of macro 'KUNIT_EXPECT_KASAN_FAIL'
   97 |         expression; \
      |         ^~~~~~~~~~

Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: kasan-dev@googlegroups.com
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220608214024.1068451-1-keescook@chromium.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
 2022-08-17 14:23:05 +02:00
Andrey Konovalov
52c83986c9 BACKPORT: kasan: test: support async (again) and asymm modes for HW_TAGS 
[Backport: fix conflicts with commit d9f210a14d ("ANDROID: kunit:
 Provision kunit as a vendor module") that removed CONFIG_KUNIT checks.]

Async mode support has already been implemented in commit e80a76aa1a
("kasan, arm64: tests supports for HW_TAGS async mode") but then got
accidentally broken in commit 99734b535d ("kasan: detect false-positives
in tests").

Restore the changes removed by the latter patch and adapt them for asymm
mode: add a sync_fault flag to kunit_kasan_expectation that only get set
if the MTE fault was synchronous, and reenable MTE on such faults in
tests.

Also rename kunit_kasan_expectation to kunit_kasan_status and move its
definition to mm/kasan/kasan.h from include/linux/kasan.h, as this
structure is only internally used by KASAN.  Also put the structure
definition under IS_ENABLED(CONFIG_KUNIT).

Link: https://lkml.kernel.org/r/133970562ccacc93ba19d754012c562351d4a8c8.1645033139.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit ed6d74446cbfb88c747d4b32477a9d46132694db)
Bug: 217222520
Change-Id: I8be7f20e72efe7ad81999dc75c848fb89664602c
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
 2022-04-20 00:35:10 +00:00
Andrey Konovalov
4b6f018168 ANDROID: kasan: sync vmalloc support with linux-next/akpm 
The FROMLIST patches merged in aosp/1974918 that add vmalloc support to
KASAN now have a few fixes staged in linux-next/akpm. Sync the changes.

Bug: 217222520
Bug: 222221793
Change-Id: I33dd30e3834a4d1bb8eac611b350004afdb08a74
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
 2022-03-21 15:31:03 +00:00
Andrey Konovalov
acccc2aa2e FROMLIST: kasan: improve vmalloc tests 
[Combines a FROMGIT patch and a FROMGIT fix with another FROMLIST fix.]

Update the existing vmalloc_oob() test to account for the specifics of the
tag-based modes.  Also add a few new checks and comments.

Add new vmalloc-related tests:

- vmalloc_helpers_tags() to check that exported vmalloc helpers can
  handle tagged pointers.
- vmap_tags() to check that SW_TAGS mode properly tags vmap() mappings.
- vm_map_ram_tags() to check that SW_TAGS mode properly tags
  vm_map_ram() mappings.
- vmalloc_percpu() to check that SW_TAGS mode tags regions allocated
  for __alloc_percpu(). The tagging of per-cpu mappings is best-effort;
  proper tagging is tracked in [1].

[1] https://bugzilla.kernel.org/show_bug.cgi?id=215019

Link: https://lkml.kernel.org/r/bbdc1c0501c5275e7f26fdb8e2a7b14a40a9f36b.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 96304a5b9bff6287fe7da9c20f253b3023553782
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
(cherry picked from commit 790a96c47a502de4e415788d5033e9f6938b28e8
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Link: https://lore.kernel.org/linux-mm/865c91ba49b90623ab50c7526b79ccb955f544f0.1644950160.git.andreyknvl@google.com/
Bug: 217222520
Change-Id: Id3eacce3bb8e7cecc2281dec87e5cd36792c2427
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
 2022-02-15 19:44:52 +01:00
Marco Elver
b35dd8c5f7 UPSTREAM: kasan: test: fix compatibility with FORTIFY_SOURCE 
With CONFIG_FORTIFY_SOURCE enabled, string functions will also perform
dynamic checks using __builtin_object_size(ptr), which when failed will
panic the kernel.

Because the KASAN test deliberately performs out-of-bounds operations,
the kernel panics with FORTIFY_SOURCE, for example:

 | kernel BUG at lib/string_helpers.c:910!
 | invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
 | CPU: 1 PID: 137 Comm: kunit_try_catch Tainted: G    B             5.16.0-rc3+ #3
 | Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014
 | RIP: 0010:fortify_panic+0x19/0x1b
 | ...
 | Call Trace:
 |  kmalloc_oob_in_memset.cold+0x16/0x16
 |  ...

Fix it by also hiding `ptr` from the optimizer, which will ensure that
__builtin_object_size() does not return a valid size, preventing
fortified string functions from panicking.

Link: https://lkml.kernel.org/r/20220124160744.1244685-1-elver@google.com
Signed-off-by: Marco Elver <elver@google.com>
Reported-by: Nico Pache <npache@redhat.com>
Reviewed-by: Nico Pache <npache@redhat.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 09c6304e38e440b93a9ebf3f3cf75cd6cb529f91)
Bug: 217222520
Change-Id: I51ef8a2fc61e4e86916cd4d83c1ca0d2d980a81d
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
 2022-02-14 15:50:55 +01:00
Marco Elver
2ad8d9d321 UPSTREAM: kasan: test: add test case for double-kmem_cache_destroy() 
Add a test case for double-kmem_cache_destroy() detection.

Link: https://lkml.kernel.org/r/20211119142219.1519617-2-elver@google.com
Signed-off-by: Marco Elver <elver@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit f98f966cd75002a71caec1b6d209da5762c0efac)
Bug: 217222520
Change-Id: Ifbb643a7dc2c7a78f5596cc7521c5723146b882e
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
 2022-02-14 15:50:55 +01:00
Marco Elver
ac3107b46a UPSTREAM: kasan: test: add globals left-out-of-bounds test 
Add a test checking that KASAN generic can also detect out-of-bounds
accesses to the left of globals.

Unfortunately it seems that GCC doesn't catch this (tested GCC 10, 11).
The main difference between GCC's globals redzoning and Clang's is that
GCC relies on using increased alignment to producing padding, where
Clang's redzoning implementation actually adds real data after the
global and doesn't rely on alignment to produce padding.  I believe this
is the main reason why GCC can't reliably catch globals out-of-bounds in
this case.

Given this is now a known issue, to avoid failing the whole test suite,
skip this test case with GCC.

Link: https://lkml.kernel.org/r/20211117130714.135656-1-elver@google.com
Signed-off-by: Marco Elver <elver@google.com>
Reported-by: Kaiwan N Billimoria <kaiwan.billimoria@gmail.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Kaiwan N Billimoria <kaiwan.billimoria@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit e5f4728767d2ec9e3eb122c74e224242d21ee650)
Bug: 217222520
Change-Id: Iba1aee23d8a63bdc68cd219b8fd35e40734d65aa
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
 2022-02-14 15:50:54 +01:00
Kees Cook
3457cc5797 UPSTREAM: kasan: test: silence intentional read overflow warnings 
As done in commit d73dad4eb5ad ("kasan: test: bypass __alloc_size
checks") for __write_overflow warnings, also silence some more cases
that trip the __read_overflow warnings seen in 5.16-rc1[1]:

  In file included from include/linux/string.h:253,
                   from include/linux/bitmap.h:10,
                   from include/linux/cpumask.h:12,
                   from include/linux/mm_types_task.h:14,
                   from include/linux/mm_types.h:5,
                   from include/linux/page-flags.h:13,
                   from arch/arm64/include/asm/mte.h:14,
                   from arch/arm64/include/asm/pgtable.h:12,
                   from include/linux/pgtable.h:6,
                   from include/linux/kasan.h:29,
                   from lib/test_kasan.c:10:
  In function 'memcmp',
      inlined from 'kasan_memcmp' at lib/test_kasan.c:897:2:
  include/linux/fortify-string.h:263:25: error: call to '__read_overflow' declared with attribute error: detected read beyond size of object (1st parameter)
    263 |                         __read_overflow();
        |                         ^~~~~~~~~~~~~~~~~
  In function 'memchr',
      inlined from 'kasan_memchr' at lib/test_kasan.c:872:2:
  include/linux/fortify-string.h:277:17: error: call to '__read_overflow' declared with attribute error: detected read beyond size of object (1st parameter)
    277 |                 __read_overflow();
        |                 ^~~~~~~~~~~~~~~~~

[1] http://kisskb.ellerman.id.au/kisskb/buildresult/14660585/log/

Link: https://lkml.kernel.org/r/20211116004111.3171781-1-keescook@chromium.org
Fixes: d73dad4eb5ad ("kasan: test: bypass __alloc_size checks")
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit cab71f7495f7aa639ca4b8508f4c3e426e9cb2f7)
Bug: 217222520
Change-Id: I1e521864e42b993ed5f3815c0a640ef86b8818e6
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
 2022-02-14 15:50:54 +01:00
Kees Cook
6b8cc5f60b UPSTREAM: kasan: test: bypass __alloc_size checks 
Intentional overflows, as performed by the KASAN tests, are detected at
compile time[1] (instead of only at run-time) with the addition of
__alloc_size.  Fix this by forcing the compiler into not being able to
trust the size used following the kmalloc()s.

[1] https://lore.kernel.org/lkml/20211005184717.65c6d8eb39350395e387b71f@linux-foundation.org

Link: https://lkml.kernel.org/r/20211006181544.1670992-1-keescook@chromium.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit d73dad4eb5ad8c31ac9cf358eb5a55825bafe706)
Bug: 217222520
Change-Id: Icf4b846b993a93a9fc27884c729d000e204ad5f6
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
 2022-02-14 15:50:54 +01:00
Peter Collingbourne
0c32aa8a23 UPSTREAM: kasan: test: add memcpy test that avoids out-of-bounds write 
With HW tag-based KASAN, error checks are performed implicitly by the
load and store instructions in the memcpy implementation.  A failed
check results in tag checks being disabled and execution will keep
going.  As a result, under HW tag-based KASAN, prior to commit
1b0668be62 ("kasan: test: disable kmalloc_memmove_invalid_size for
HW_TAGS"), this memcpy would end up corrupting memory until it hits an
inaccessible page and causes a kernel panic.

This is a pre-existing issue that was revealed by commit 285133040e
("arm64: Import latest memcpy()/memmove() implementation") which changed
the memcpy implementation from using signed comparisons (incorrectly,
resulting in the memcpy being terminated early for negative sizes) to
using unsigned comparisons.

It is unclear how this could be handled by memcpy itself in a reasonable
way.  One possibility would be to add an exception handler that would
force memcpy to return if a tag check fault is detected -- this would
make the behavior roughly similar to generic and SW tag-based KASAN.
However, this wouldn't solve the problem for asynchronous mode and also
makes memcpy behavior inconsistent with manually copying data.

This test was added as a part of a series that taught KASAN to detect
negative sizes in memory operations, see commit 8cceeff48f ("kasan:
detect negative size in memory operation function").  Therefore we
should keep testing for negative sizes with generic and SW tag-based
KASAN.  But there is some value in testing small memcpy overflows, so
let's add another test with memcpy that does not destabilize the kernel
by performing out-of-bounds writes, and run it in all modes.

Link: https://linux-review.googlesource.com/id/I048d1e6a9aff766c4a53f989fb0c83de68923882
Link: https://lkml.kernel.org/r/20210910211356.3603758-1-pcc@google.com
Signed-off-by: Peter Collingbourne <pcc@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Alexander Potapenko <glider@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 758cabae312d3aded781aacc6d0c946b299c52df)
Bug: 217222520
Change-Id: I2cde4d706018889c635e290c8f94884688cba172
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
 2022-02-14 15:50:54 +01:00
Vincenzo Frascino
54e74987ed UPSTREAM: kasan: Extend KASAN mode kernel parameter 
Architectures supported by KASAN_HW_TAGS can provide an asymmetric mode
of execution. On an MTE enabled arm64 hw for example this can be
identified with the asymmetric tagging mode of execution. In particular,
when such a mode is present, the CPU triggers a fault on a tag mismatch
during a load operation and asynchronously updates a register when a tag
mismatch is detected during a store operation.

Extend the KASAN HW execution mode kernel command line parameter to
support asymmetric mode.

Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Link: https://lore.kernel.org/r/20211006154751.4463-6-vincenzo.frascino@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit 2d27e585147395316289c63efc932984675c65c2)
Bug: 217221156
Change-Id: I5284fd8a4e8c2ddb1e06ca65bed133e35d70eb7f
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
 2022-02-14 15:50:53 +01:00
Linus Torvalds
14726903c8 Merge branch 'akpm' (patches from Andrew) 
Merge misc updates from Andrew Morton:
 "173 patches.

  Subsystems affected by this series: ia64, ocfs2, block, and mm (debug,
  pagecache, gup, swap, shmem, memcg, selftests, pagemap, mremap,
  bootmem, sparsemem, vmalloc, kasan, pagealloc, memory-failure,
  hugetlb, userfaultfd, vmscan, compaction, mempolicy, memblock,
  oom-kill, migration, ksm, percpu, vmstat, and madvise)"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (173 commits)
  mm/madvise: add MADV_WILLNEED to process_madvise()
  mm/vmstat: remove unneeded return value
  mm/vmstat: simplify the array size calculation
  mm/vmstat: correct some wrong comments
  mm/percpu,c: remove obsolete comments of pcpu_chunk_populated()
  selftests: vm: add COW time test for KSM pages
  selftests: vm: add KSM merging time test
  mm: KSM: fix data type
  selftests: vm: add KSM merging across nodes test
  selftests: vm: add KSM zero page merging test
  selftests: vm: add KSM unmerge test
  selftests: vm: add KSM merge test
  mm/migrate: correct kernel-doc notation
  mm: wire up syscall process_mrelease
  mm: introduce process_mrelease system call
  memblock: make memblock_find_in_range method private
  mm/mempolicy.c: use in_task() in mempolicy_slab_node()
  mm/mempolicy: unify the create() func for bind/interleave/prefer-many policies
  mm/mempolicy: advertise new MPOL_PREFERRED_MANY
  mm/hugetlb: add support for mempolicy MPOL_PREFERRED_MANY
  ...
 2021-09-03 10:08:28 -07:00
Andrey Konovalov
b38fcca339 kasan: test: clean up ksize_uaf 
Some KASAN tests use global variables to store function returns values so
that the compiler doesn't optimize away these functions.

ksize_uaf() doesn't call any functions, so it doesn't need to use
kasan_int_result.  Use volatile accesses instead, to be consistent with
other similar tests.

Link: https://lkml.kernel.org/r/a1fc34faca4650f4a6e4dfb3f8d8d82c82eb953a.1628779805.git.andreyknvl@gmail.com
Signed-off-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2021-09-03 09:58:15 -07:00
Andrey Konovalov
25b12a58e8 kasan: test: only do kmalloc_uaf_memset for generic mode 
kmalloc_uaf_memset() writes to freed memory, which is only safe with the
GENERIC mode (as it uses quarantine).  For other modes, this test corrupts
kernel memory, which might result in a crash.

Only enable kmalloc_uaf_memset() for the GENERIC mode.

Link: https://lkml.kernel.org/r/2e1c87b607b1292556cde3cab2764f108542b60c.1628779805.git.andreyknvl@gmail.com
Signed-off-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2021-09-03 09:58:14 -07:00
Andrey Konovalov
1b0668be62 kasan: test: disable kmalloc_memmove_invalid_size for HW_TAGS 
The HW_TAGS mode doesn't check memmove for negative size.  As a result,
the kmalloc_memmove_invalid_size test corrupts memory, which can result in
a crash.

Disable this test with HW_TAGS KASAN.

Link: https://lkml.kernel.org/r/088733a06ac21eba29aa85b6f769d2abd74f9638.1628779805.git.andreyknvl@gmail.com
Signed-off-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2021-09-03 09:58:14 -07:00
Andrey Konovalov
555999a009 kasan: test: avoid corrupting memory via memset 
kmalloc_oob_memset_*() tests do writes past the allocated objects.  As the
result, they corrupt memory, which might lead to crashes with the HW_TAGS
mode, as it neither uses quarantine nor redzones.

Adjust the tests to only write memory within the aligned kmalloc objects.

Also add a comment mentioning that memset tests are designed to touch both
valid and invalid memory.

Link: https://lkml.kernel.org/r/64fd457668a16e7b58d094f14a165f9d5170c5a9.1628779805.git.andreyknvl@gmail.com
Signed-off-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2021-09-03 09:58:14 -07:00
Andrey Konovalov
8fbad19bdc kasan: test: avoid writing invalid memory 
Multiple KASAN tests do writes past the allocated objects or writes to
freed memory.  Turn these writes into reads to avoid corrupting memory.
Otherwise, these tests might lead to crashes with the HW_TAGS mode, as it
neither uses quarantine nor redzones.

Link: https://lkml.kernel.org/r/c3cd2a383e757e27dd9131635fc7d09a48a49cf9.1628779805.git.andreyknvl@gmail.com
Signed-off-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2021-09-03 09:58:14 -07:00
Andrey Konovalov
ab51280571 kasan: test: rework kmalloc_oob_right 
Patch series "kasan: test: avoid crashing the kernel with HW_TAGS", v2.

KASAN tests do out-of-bounds and use-after-free accesses.  Running the
tests works fine for the GENERIC mode, as it uses qurantine and redzones.
But the HW_TAGS mode uses neither, and running the tests might crash the
kernel.

Rework the tests to avoid corrupting kernel memory.

This patch (of 8):

Rework kmalloc_oob_right() to do these bad access checks:

1. An unaligned access one byte past the requested kmalloc size
   (can only be detected by KASAN_GENERIC).
2. An aligned access into the first out-of-bounds granule that falls
   within the aligned kmalloc object.
3. Out-of-bounds access past the aligned kmalloc object.

Test #3 deliberately uses a read access to avoid corrupting memory.
Otherwise, this test might lead to crashes with the HW_TAGS mode, as it
neither uses quarantine nor redzones.

Link: https://lkml.kernel.org/r/cover.1628779805.git.andreyknvl@gmail.com
Link: https://lkml.kernel.org/r/474aa8b7b538c6737a4c6d0090350af2e1776bef.1628779805.git.andreyknvl@gmail.com
Signed-off-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Alexander Potapenko <glider@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2021-09-03 09:58:14 -07:00
Mark Rutland
7672150301 arm64: kasan: mte: remove redundant mte_report_once logic 
We have special logic to suppress MTE tag check fault reporting, based
on a global `mte_report_once` and `reported` variables. These can be
used to suppress calling kasan_report() when taking a tag check fault,
but do not prevent taking the fault in the first place, nor does they
affect the way we disable tag checks upon taking a fault.

The core KASAN code already defaults to reporting a single fault, and
has a `multi_shot` control to permit reporting multiple faults. The only
place we transiently alter `mte_report_once` is in lib/test_kasan.c,
where we also the `multi_shot` state as the same time. Thus
`mte_report_once` and `reported` are redundant, and can be removed.

When a tag check fault is taken, tag checking will be disabled by
`do_tag_recovery` and must be explicitly re-enabled if desired. The test
code does this by calling kasan_enable_tagging_sync().

This patch removes the redundant mte_report_once() logic and associated
variables.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Tested-by: Andrey Konovalov <andreyknvl@gmail.com>
Link: https://lore.kernel.org/r/20210714143843.56537-4-mark.rutland@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
 2021-08-02 18:15:28 +01:00
Zhen Lei
53b0fe36ab lib/test: fix spelling mistakes 
Fix some spelling mistakes in comments found by "codespell":
thats ==> that's
unitialized ==> uninitialized
panicing ==> panicking
sucess ==> success
possitive ==> positive
intepreted ==> interpreted

Link: https://lkml.kernel.org/r/20210607133036.12525-2-thunder.leizhen@huawei.com
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Acked-by: Yonghong Song <yhs@fb.com>	[test_bfp.c]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2021-07-08 11:48:20 -07:00
Linus Torvalds
a48ad6e7a3 Merge tag 'linux-kselftest-kunit-fixes-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest 
Pull KUnit update from Shuah Khan:
 "Fixes and features:

   - add support for skipped tests

   - introduce kunit_kmalloc_array/kunit_kcalloc() helpers

   - add gnu_printf specifiers

   - add kunit_shutdown

   - add unit test for filtering suites by names

   - convert lib/test_list_sort.c to use KUnit

   - code organization moving default config to tools/testing/kunit

   - refactor of internal parser input handling

   - cleanups and updates to documentation

   - code cleanup related to casts"

* tag 'linux-kselftest-kunit-fixes-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (29 commits)
  kunit: add unit test for filtering suites by names
  kasan: test: make use of kunit_skip()
  kunit: test: Add example tests which are always skipped
  kunit: tool: Support skipped tests in kunit_tool
  kunit: Support skipped tests
  thunderbolt: test: Reinstate a few casts of bitfields
  kunit: tool: internal refactor of parser input handling
  lib/test: convert lib/test_list_sort.c to use KUnit
  kunit: introduce kunit_kmalloc_array/kunit_kcalloc() helpers
  kunit: Remove the unused all_tests.config
  kunit: Move default config from arch/um -> tools/testing/kunit
  kunit: arch/um/configs: Enable KUNIT_ALL_TESTS by default
  kunit: Add gnu_printf specifiers
  lib/cmdline_kunit: Remove a cast which are no-longer required
  kernel/sysctl-test: Remove some casts which are no-longer required
  thunderbolt: test: Remove some casts which are no longer required
  mmc: sdhci-of-aspeed: Remove some unnecessary casts from KUnit tests
  iio: Remove a cast in iio-test-format which is no longer required
  device property: Remove some casts in property-entry-test
  Documentation: kunit: Clean up some string casts in examples
  ...
 2021-07-02 12:58:26 -07:00
David Gow
3ff16d30f5 kasan: test: improve failure message in KUNIT_EXPECT_KASAN_FAIL() 
The KUNIT_EXPECT_KASAN_FAIL() macro currently uses KUNIT_EXPECT_EQ() to
compare fail_data.report_expected and fail_data.report_found.  This always
gave a somewhat useless error message on failure, but the addition of
extra compile-time checking with READ_ONCE() has caused it to get much
longer, and be truncated before anything useful is displayed.

Instead, just check fail_data.report_found by hand (we've just set
report_expected to 'true'), and print a better failure message with
KUNIT_FAIL().  Because of this, report_expected is no longer used
anywhere, and can be removed.

Beforehand, a failure in:
KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)area)[3100]);
would have looked like:
[22:00:34] [FAILED] vmalloc_oob
[22:00:34]     # vmalloc_oob: EXPECTATION FAILED at lib/test_kasan.c:991
[22:00:34]     Expected ({ do { extern void __compiletime_assert_705(void) __attribute__((__error__("Unsupported access size for {READ,WRITE}_ONCE()."))); if (!((sizeof(fail_data.report_expected) == sizeof(char) || sizeof(fail_data.repp
[22:00:34]     not ok 45 - vmalloc_oob

With this change, it instead looks like:
[22:04:04] [FAILED] vmalloc_oob
[22:04:04]     # vmalloc_oob: EXPECTATION FAILED at lib/test_kasan.c:993
[22:04:04]     KASAN failure expected in "((volatile char *)area)[3100]", but none occurred
[22:04:04]     not ok 45 - vmalloc_oob

Also update the example failure in the documentation to reflect this.

Link: https://lkml.kernel.org/r/20210606005531.165954-1-davidgow@google.com
Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Marco Elver <elver@google.com>
Acked-by: Brendan Higgins <brendanhiggins@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Daniel Axtens <dja@axtens.net>
Cc: David Gow <davidgow@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2021-06-29 10:53:52 -07:00
Marco Elver
40eb5cf4cc kasan: test: make use of kunit_skip() 
Make use of the recently added kunit_skip() to skip tests, as it permits
TAP parsers to recognize if a test was deliberately skipped.

Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
 2021-06-25 11:31:03 -06:00
Peter Collingbourne
f649dc0e0d kasan: fix unit tests with CONFIG_UBSAN_LOCAL_BOUNDS enabled 
These tests deliberately access these arrays out of bounds, which will
cause the dynamic local bounds checks inserted by
CONFIG_UBSAN_LOCAL_BOUNDS to fail and panic the kernel.  To avoid this
problem, access the arrays via volatile pointers, which will prevent the
compiler from being able to determine the array bounds.

These accesses use volatile pointers to char (char *volatile) rather than
the more conventional pointers to volatile char (volatile char *) because
we want to prevent the compiler from making inferences about the pointer
itself (i.e.  its array bounds), not the data that it refers to.

Link: https://lkml.kernel.org/r/20210507025915.1464056-1-pcc@google.com
Link: https://linux-review.googlesource.com/id/I90b1713fbfa1bf68ff895aef099ea77b98a7c3b9
Signed-off-by: Peter Collingbourne <pcc@google.com>
Tested-by: Alexander Potapenko <glider@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: George Popescu <georgepope@android.com>
Cc: Elena Petrova <lenaptr@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2021-05-14 19:41:32 -07:00
Andrey Konovalov
99734b535d kasan: detect false-positives in tests 
Currently, KASAN-KUnit tests can check that a particular annotated part of
code causes a KASAN report.  However, they do not check that no unwanted
reports happen between the annotated parts.

This patch implements these checks.

It is done by setting report_data.report_found to false in
kasan_test_init() and at the end of KUNIT_EXPECT_KASAN_FAIL() and then
checking that it remains false at the beginning of
KUNIT_EXPECT_KASAN_FAIL() and in kasan_test_exit().

kunit_add_named_resource() call is moved to kasan_test_init(), and the
value of fail_data.report_expected is kept as false in between
KUNIT_EXPECT_KASAN_FAIL() annotations for consistency.

Link: https://lkml.kernel.org/r/48079c52cc329fbc52f4386996598d58022fb872.1617207873.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2021-04-30 11:20:42 -07:00
Andrey Konovalov
aa5c219c60 kasan: init memory in kasan_(un)poison for HW_TAGS 
This change adds an argument to kasan_poison() and kasan_unpoison() that
allows initializing memory along with setting the tags for HW_TAGS.

Combining setting allocation tags with memory initialization will improve
HW_TAGS KASAN performance when init_on_alloc/free is enabled.

This change doesn't integrate memory initialization with KASAN, this is
done is subsequent patches in this series.

Link: https://lkml.kernel.org/r/3054314039fa64510947e674180d675cab1b4c41.1615296150.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2021-04-30 11:20:41 -07:00
Andrey Konovalov
e80a76aa1a kasan, arm64: tests supports for HW_TAGS async mode 
This change adds KASAN-KUnit tests support for the async HW_TAGS mode.

In async mode, tag fault aren't being generated synchronously when a
bad access happens, but are instead explicitly checked for by the kernel.

As each KASAN-KUnit test expect a fault to happen before the test is over,
check for faults as a part of the test handler.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Andrey Konovalov <andreyknvl@google.com>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Link: https://lore.kernel.org/r/20210315132019.33202-10-vincenzo.frascino@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
 2021-04-11 10:57:45 +01:00
Vincenzo Frascino
2603f8a78d kasan: Add KASAN mode kernel parameter 
Architectures supported by KASAN_HW_TAGS can provide a sync or async mode
of execution. On an MTE enabled arm64 hw for example this can be identified
with the synchronous or asynchronous tagging mode of execution.
In synchronous mode, an exception is triggered if a tag check fault occurs.
In asynchronous mode, if a tag check fault occurs, the TFSR_EL1 register is
updated asynchronously. The kernel checks the corresponding bits
periodically.

KASAN requires a specific kernel command line parameter to make use of this
hw features.

Add KASAN HW execution mode kernel command line parameter.

Note: This patch adds the kasan.mode kernel parameter and the
sync/async kernel command line options to enable the described features.

[ Add a new var instead of exposing kasan_arg_mode to be consistent with
  flags for other command line arguments. ]

Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Andrey Konovalov <andreyknvl@google.com>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Link: https://lore.kernel.org/r/20210315132019.33202-3-vincenzo.frascino@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
 2021-04-11 10:56:39 +01:00
Andrey Konovalov
26a5ca7a73 kasan, mm: fail krealloc on freed objects 
Currently, if krealloc() is called on a freed object with KASAN enabled,
it allocates and returns a new object, but doesn't copy any memory from
the old one as ksize() returns 0.  This makes the caller believe that
krealloc() succeeded (KASAN report is printed though).

This patch adds an accessibility check into __do_krealloc().  If the check
fails, krealloc() returns NULL.  This check duplicates the one in ksize();
this is fixed in the following patch.

This patch also adds a KASAN-KUnit test to check krealloc() behaviour when
it's called on a freed object.

Link: https://lkml.kernel.org/r/cbcf7b02be0a1ca11de4f833f2ff0b3f2c9b00c8.1612546384.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2021-02-26 09:41:03 -08:00
Andrey Konovalov
b87c28b9a7 kasan: rework krealloc tests 
This patch reworks KASAN-KUnit tests for krealloc() to:

1. Check both slab and page_alloc based krealloc() implementations.
2. Allow at least one full granule to fit between old and new sizes for
   each KASAN mode, and check accesses to that granule accordingly.

Link: https://lkml.kernel.org/r/c707f128a2bb9f2f05185d1eb52192cf179cf4fa.1612546384.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2021-02-26 09:41:03 -08:00
Andrey Konovalov
d82dc3a40d kasan: don't run tests when KASAN is not enabled 
Don't run KASAN tests when it's disabled with kasan.mode=off to avoid
corrupting kernel memory.

Link: https://linux-review.googlesource.com/id/I6447af436a69a94bfc35477f6bf4e2122948355e
Link: https://lkml.kernel.org/r/25bd4fb5cae7b421d806a1f33fb633edd313f0c7.1610733117.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2021-02-24 13:38:31 -08:00
Andrey Konovalov
115161354d kasan: add a test for kmem_cache_alloc/free_bulk 
Add a test for kmem_cache_alloc/free_bulk to make sure there are no
false-positives when these functions are used.

Link: https://linux-review.googlesource.com/id/I2a8bf797aecf81baeac61380c567308f319e263d
Link: https://lkml.kernel.org/r/418122ebe4600771ac81e9ca6eab6740cf8dcfa1.1610733117.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2021-02-24 13:38:31 -08:00
Andrey Konovalov
858bdeb046 kasan: add proper page allocator tests 
The currently existing page allocator tests rely on kmalloc fallback
with large sizes that is only present for SLUB. Add proper tests that
use alloc/free_pages().

Link: https://linux-review.googlesource.com/id/Ia173d5a1b215fe6b2548d814ef0f4433cf983570
Link: https://lkml.kernel.org/r/a2648930e55ff75b8e700f2e0d905c2b55a67483.1610733117.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2021-02-24 13:38:31 -08:00
Andrey Konovalov
611806b4bf kasan: fix bug detection via ksize for HW_TAGS mode 
The currently existing kasan_check_read/write() annotations are intended
to be used for kernel modules that have KASAN compiler instrumentation
disabled. Thus, they are only relevant for the software KASAN modes that
rely on compiler instrumentation.

However there's another use case for these annotations: ksize() checks
that the object passed to it is indeed accessible before unpoisoning the
whole object. This is currently done via __kasan_check_read(), which is
compiled away for the hardware tag-based mode that doesn't rely on
compiler instrumentation. This leads to KASAN missing detecting some
memory corruptions.

Provide another annotation called kasan_check_byte() that is available
for all KASAN modes. As the implementation rename and reuse
kasan_check_invalid_free(). Use this new annotation in ksize().
To avoid having ksize() as the top frame in the reported stack trace
pass _RET_IP_ to __kasan_check_byte().

Also add a new ksize_uaf() test that checks that a use-after-free is
detected via ksize() itself, and via plain accesses that happen later.

Link: https://linux-review.googlesource.com/id/Iaabf771881d0f9ce1b969f2a62938e99d3308ec5
Link: https://lkml.kernel.org/r/f32ad74a60b28d8402482a38476f02bb7600f620.1610733117.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2021-02-24 13:38:31 -08:00
Andrey Konovalov
e66e1799a7 kasan: fix memory corruption in kasan_bitops_tags test 
Since the hardware tag-based KASAN mode might not have a redzone that
comes after an allocated object (when kasan.mode=prod is enabled), the
kasan_bitops_tags() test ends up corrupting the next object in memory.

Change the test so it always accesses the redzone that lies within the
allocated object's boundaries.

Link: https://linux-review.googlesource.com/id/I67f51d1ee48f0a8d0fe2658c2a39e4879fe0832a
Link: https://lkml.kernel.org/r/7d452ce4ae35bb1988d2c9244dfea56cf2cc9315.1610733117.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2021-02-24 13:38:31 -08:00
Andrey Konovalov
1b1df4c4e2 kasan: adapt kmalloc_uaf2 test to HW_TAGS mode 
In the kmalloc_uaf2() test, the pointers to the two allocated memory
blocks might happen to be the same, and the test will fail. With the
software tag-based mode, the probability of the that is 1/254, so it's
hard to observe the failure. For the hardware tag-based mode though,
the probablity is 1/14, which is quite noticable.

Allow up to 16 attempts at generating different tags for the tag-based
modes.

Link: https://linux-review.googlesource.com/id/Ibfa458ef2804ff465d8eb07434a300bf36388d55
Link: https://lkml.kernel.org/r/9cd5cf2f633dcbf55cab801cd26845d2b075cec7.1610733117.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2021-02-24 13:38:31 -08:00
Andrey Konovalov
2e4bde6a1e kasan: add compiler barriers to KUNIT_EXPECT_KASAN_FAIL 
It might not be obvious to the compiler that the expression must be
executed between writing and reading to fail_data. In this case, the
compiler might reorder or optimize away some of the accesses, and
the tests will fail.

Add compiler barriers around the expression in KUNIT_EXPECT_KASAN_FAIL
and use READ/WRITE_ONCE() for accessing fail_data fields.

Link: https://linux-review.googlesource.com/id/I046079f48641a1d36fe627fc8827a9249102fd50
Link: https://lkml.kernel.org/r/6f11596f367d8ae8f71d800351e9a5d91eda19f6.1610733117.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2021-02-24 13:38:31 -08:00
Andrey Konovalov
f05842cfb9 kasan, arm64: allow using KUnit tests with HW_TAGS mode 
On a high level, this patch allows running KUnit KASAN tests with the
hardware tag-based KASAN mode.

Internally, this change reenables tag checking at the end of each KASAN
test that triggers a tag fault and leads to tag checking being disabled.

Also simplify is_write calculation in report_tag_fault.

With this patch KASAN tests are still failing for the hardware tag-based
mode; fixes come in the next few patches.

[andreyknvl@google.com: export HW_TAGS symbols for KUnit tests]
  Link: https://lkml.kernel.org/r/e7eeb252da408b08f0c81b950a55fb852f92000b.1613155970.git.andreyknvl@google.com

Link: https://linux-review.googlesource.com/id/Id94dc9eccd33b23cda4950be408c27f879e474c8
Link: https://lkml.kernel.org/r/51b23112cf3fd62b8f8e9df81026fa2b15870501.1610733117.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Marco Elver <elver@google.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2021-02-24 13:38:31 -08:00
Andrey Konovalov
573a480923 kasan: add match-all tag tests 
Add 3 new tests for tag-based KASAN modes:

1. Check that match-all pointer tag is not assigned randomly.
2. Check that 0xff works as a match-all pointer tag.
3. Check that there are no match-all memory tags.

Note, that test #3 causes a significant number (255) of KASAN reports
to be printed during execution for the SW_TAGS mode.

[arnd@arndb.de: export kasan_poison]
  Link: https://lkml.kernel.org/r/20210125112831.2156212-1-arnd@kernel.org
[akpm@linux-foundation.org: s/EXPORT_SYMBOL_GPL/EXPORT_SYMBOL/, per Andrey]

Link: https://linux-review.googlesource.com/id/I78f1375efafa162b37f3abcb2c5bc2f3955dfd8e
Link: https://lkml.kernel.org/r/da841a5408e2204bf25f3b23f70540a65844e8a4.1610733117.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Marco Elver <elver@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2021-02-24 13:38:31 -08:00
Andrey Konovalov
da17e37772 kasan: add macros to simplify checking test constraints 
Some KASAN tests require specific kernel configs to be enabled.
Instead of copy-pasting the checks for these configs add a few helper
macros and use them.

Link: https://linux-review.googlesource.com/id/I237484a7fddfedf4a4aae9cc61ecbcdbe85a0a63
Link: https://lkml.kernel.org/r/6a0fcdb9676b7e869cfc415893ede12d916c246c.1610733117.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Suggested-by: Alexander Potapenko <glider@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2021-02-24 13:38:31 -08:00
Andrey Konovalov
0fd3792536 kasan: clean up comments in tests 
Clarify and update comments in KASAN tests.

Link: https://linux-review.googlesource.com/id/I6c816c51fa1e0eb7aa3dead6bda1f339d2af46c8
Link: https://lkml.kernel.org/r/ba6db104d53ae0e3796f80ef395f6873c1c1282f.1610733117.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2021-02-24 13:38:30 -08:00
Andrey Konovalov
1f600626b3 kasan: rename KASAN_SHADOW_* to KASAN_GRANULE_* 
This is a preparatory commit for the upcoming addition of a new hardware
tag-based (MTE-based) KASAN mode.

The new mode won't be using shadow memory, but will still use the concept
of memory granules.  Each memory granule maps to a single metadata entry:
8 bytes per one shadow byte for generic mode, 16 bytes per one shadow byte
for software tag-based mode, and 16 bytes per one allocation tag for
hardware tag-based mode.

Rename KASAN_SHADOW_SCALE_SIZE to KASAN_GRANULE_SIZE, and
KASAN_SHADOW_MASK to KASAN_GRANULE_MASK.

Also use MASK when used as a mask, otherwise use SIZE.

No functional changes.

Link: https://lkml.kernel.org/r/939b5754e47f528a6e6a6f28ffc5815d8d128033.1606161801.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Marco Elver <elver@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2020-12-22 12:55:06 -08:00
Andrey Konovalov
58b999d7a2 kasan: adopt KUNIT tests to SW_TAGS mode 
Now that we have KASAN-KUNIT tests integration, it's easy to see that
some KASAN tests are not adopted to the SW_TAGS mode and are failing.

Adjust the allocation size for kasan_memchr() and kasan_memcmp() by
roung it up to OOB_TAG_OFF so the bad access ends up in a separate
memory granule.

Add a new kmalloc_uaf_16() tests that relies on UAF, and a new
kasan_bitops_tags() test that is tailored to tag-based mode, as it's
hard to adopt the existing kmalloc_oob_16() and kasan_bitops_generic()
(renamed from kasan_bitops()) without losing the precision.

Add new kmalloc_uaf_16() and kasan_bitops_uaf() tests that rely on UAFs,
as it's hard to adopt the existing kmalloc_oob_16() and
kasan_bitops_oob() (rename from kasan_bitops()) without losing the
precision.

Disable kasan_global_oob() and kasan_alloca_oob_left/right() as SW_TAGS
mode doesn't instrument globals nor dynamic allocas.

Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Tested-by: David Gow <davidgow@google.com>
Link: https://lkml.kernel.org/r/76eee17b6531ca8b3ca92b240cb2fd23204aaff7.1603129942.git.andreyknvl@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2020-11-02 12:14:18 -08:00
Patricia Alfonso
73228c7ecc KASAN: port KASAN Tests to KUnit 
Transfer all previous tests for KASAN to KUnit so they can be run more
easily.  Using kunit_tool, developers can run these tests with their other
KUnit tests and see "pass" or "fail" with the appropriate KASAN report
instead of needing to parse each KASAN report to test KASAN
functionalities.  All KASAN reports are still printed to dmesg.

Stack tests do not work properly when KASAN_STACK is enabled so those
tests use a check for "if IS_ENABLED(CONFIG_KASAN_STACK)" so they only run
if stack instrumentation is enabled.  If KASAN_STACK is not enabled, KUnit
will print a statement to let the user know this test was not run with
KASAN_STACK enabled.

copy_user_test and kasan_rcu_uaf cannot be run in KUnit so there is a
separate test file for those tests, which can be run as before as a
module.

[trishalfonso@google.com: v14]
  Link: https://lkml.kernel.org/r/20200915035828.570483-4-davidgow@google.com

Signed-off-by: Patricia Alfonso <trishalfonso@google.com>
Signed-off-by: David Gow <davidgow@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lkml.kernel.org/r/20200910070331.3358048-4-davidgow@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2020-10-13 18:38:32 -07:00
Patricia Alfonso
83c4e7a036 KUnit: KASAN Integration 
Integrate KASAN into KUnit testing framework.

        - Fail tests when KASAN reports an error that is not expected
        - Use KUNIT_EXPECT_KASAN_FAIL to expect a KASAN error in KASAN
	  tests
        - Expected KASAN reports pass tests and are still printed when run
          without kunit_tool (kunit_tool still bypasses the report due to the
          test passing)
	- KUnit struct in current task used to keep track of the current
	  test from KASAN code

Make use of "[PATCH v3 kunit-next 1/2] kunit: generalize kunit_resource
API beyond allocated resources" and "[PATCH v3 kunit-next 2/2] kunit: add
support for named resources" from Alan Maguire [1]

        - A named resource is added to a test when a KASAN report is
          expected
        - This resource contains a struct for kasan_data containing
          booleans representing if a KASAN report is expected and if a
          KASAN report is found

[1] (https://lore.kernel.org/linux-kselftest/1583251361-12748-1-git-send-email-alan.maguire@oracle.com/T/#t)

Signed-off-by: Patricia Alfonso <trishalfonso@google.com>
Signed-off-by: David Gow <davidgow@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Brendan Higgins <brendanhiggins@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lkml.kernel.org/r/20200915035828.570483-3-davidgow@google.com
Link: https://lkml.kernel.org/r/20200910070331.3358048-3-davidgow@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2020-10-13 18:38:32 -07:00
Andrey Konovalov
51dcc81c28 kasan: adjust kasan_stack_oob for tag-based mode 
Use OOB_TAG_OFF as access offset to land the access into the next granule.

Suggested-by: Walter Wu <walter-zh.wu@mediatek.com>
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Elena Petrova <lenaptr@google.com>
Cc: Marco Elver <elver@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Link: http://lkml.kernel.org/r/403b259f1de49a7a3694531c851ac28326a586a8.1596199677.git.andreyknvl@google.com
Link: http://lkml.kernel.org/r/3063ab1411e92bce36061a96e25b651212e70ba6.1596544734.git.andreyknvl@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2020-08-07 11:33:28 -07:00
Walter Wu
f33a01492a lib/test_kasan.c: fix KASAN unit tests for tag-based KASAN 
We use tag-based KASAN, then KASAN unit tests don't detect out-of-bounds
memory access. They need to be fixed.

With tag-based KASAN, the state of each 16 aligned bytes of memory is
encoded in one shadow byte and the shadow value is tag of pointer, so
we need to read next shadow byte, the shadow value is not equal to tag
value of pointer, so that tag-based KASAN will detect out-of-bounds
memory access.

[walter-zh.wu@mediatek.com: use KASAN_SHADOW_SCALE_SIZE instead of 13]
  Link: http://lkml.kernel.org/r/20200708132524.11688-1-walter-zh.wu@mediatek.com

Suggested-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Walter Wu <walter-zh.wu@mediatek.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Link: http://lkml.kernel.org/r/20200706115039.16750-1-walter-zh.wu@mediatek.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2020-08-07 11:33:28 -07:00
Walter Wu
387d6e4668 kasan: add tests for call_rcu stack recording 
Test call_rcu() call stack recording and verify whether it correctly is
printed in KASAN report.

Signed-off-by: Walter Wu <walter-zh.wu@mediatek.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Tested-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: "Paul E . McKenney" <paulmck@kernel.org>
Link: http://lkml.kernel.org/r/20200601051045.1294-1-walter-zh.wu@mediatek.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2020-08-07 11:33:28 -07:00
Waiman Long
453431a549 mm, treewide: rename kzfree() to kfree_sensitive() 
As said by Linus:

  A symmetric naming is only helpful if it implies symmetries in use.
  Otherwise it's actively misleading.

  In "kzalloc()", the z is meaningful and an important part of what the
  caller wants.

  In "kzfree()", the z is actively detrimental, because maybe in the
  future we really _might_ want to use that "memfill(0xdeadbeef)" or
  something. The "zero" part of the interface isn't even _relevant_.

The main reason that kzfree() exists is to clear sensitive information
that should not be leaked to other future users of the same memory
objects.

Rename kzfree() to kfree_sensitive() to follow the example of the recently
added kvfree_sensitive() and make the intention of the API more explicit.
In addition, memzero_explicit() is used to clear the memory to make sure
that it won't get optimized away by the compiler.

The renaming is done by using the command sequence:

  git grep -w --name-only kzfree |\
  xargs sed -i 's/kzfree/kfree_sensitive/'

followed by some editing of the kfree_sensitive() kerneldoc and adding
a kzfree backward compatibility macro in slab.h.

[akpm@linux-foundation.org: fs/crypto/inline_crypt.c needs linux/slab.h]
[akpm@linux-foundation.org: fix fs/crypto/inline_crypt.c some more]

Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: David Howells <dhowells@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Cc: James Morris <jmorris@namei.org>
Cc: "Serge E. Hallyn" <serge@hallyn.com>
Cc: Joe Perches <joe@perches.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: "Jason A . Donenfeld" <Jason@zx2c4.com>
Link: http://lkml.kernel.org/r/20200616154311.12314-3-longman@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2020-08-07 11:33:22 -07:00