Changes in 5.15.75
Revert "fs: check FMODE_LSEEK to control internal pipe splicing"
ALSA: oss: Fix potential deadlock at unregistration
ALSA: rawmidi: Drop register_mutex in snd_rawmidi_free()
ALSA: usb-audio: Fix potential memory leaks
ALSA: usb-audio: Fix NULL dererence at error path
ALSA: hda/realtek: remove ALC289_FIXUP_DUAL_SPK for Dell 5530
ALSA: hda/realtek: Correct pin configs for ASUS G533Z
ALSA: hda/realtek: Add quirk for ASUS GV601R laptop
ALSA: hda/realtek: Add Intel Reference SSID to support headset keys
mtd: rawnand: atmel: Unmap streaming DMA mappings
io_uring/net: don't update msg_name if not provided
hv_netvsc: Fix race between VF offering and VF association message from host
cifs: destage dirty pages before re-reading them for cache=none
cifs: Fix the error length of VALIDATE_NEGOTIATE_INFO message
iio: dac: ad5593r: Fix i2c read protocol requirements
iio: ltc2497: Fix reading conversion results
iio: adc: ad7923: fix channel readings for some variants
iio: pressure: dps310: Refactor startup procedure
iio: pressure: dps310: Reset chip after timeout
xhci: dbc: Fix memory leak in xhci_alloc_dbc()
usb: add quirks for Lenovo OneLink+ Dock
can: kvaser_usb: Fix use of uninitialized completion
can: kvaser_usb_leaf: Fix overread with an invalid command
can: kvaser_usb_leaf: Fix TX queue out of sync after restart
can: kvaser_usb_leaf: Fix CAN state after restart
mmc: sdhci-sprd: Fix minimum clock limit
i2c: designware: Fix handling of real but unexpected device interrupts
fs: dlm: fix race between test_bit() and queue_work()
fs: dlm: handle -EBUSY first in lock arg validation
HID: multitouch: Add memory barriers
quota: Check next/prev free block number after reading from quota file
platform/chrome: cros_ec_proto: Update version on GET_NEXT_EVENT failure
ASoC: wcd9335: fix order of Slimbus unprepare/disable
ASoC: wcd934x: fix order of Slimbus unprepare/disable
hwmon: (gsc-hwmon) Call of_node_get() before of_find_xxx API
net: thunderbolt: Enable DMA paths only after rings are enabled
regulator: qcom_rpm: Fix circular deferral regression
arm64: topology: move store_cpu_topology() to shared code
riscv: topology: fix default topology reporting
RISC-V: Make port I/O string accessors actually work
parisc: fbdev/stifb: Align graphics memory size to 4MB
riscv: Allow PROT_WRITE-only mmap()
riscv: Make VM_WRITE imply VM_READ
riscv: always honor the CONFIG_CMDLINE_FORCE when parsing dtb
riscv: Pass -mno-relax only on lld < 15.0.0
UM: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK
nvmem: core: Fix memleak in nvmem_register()
nvme-multipath: fix possible hang in live ns resize with ANA access
nvme-pci: set min_align_mask before calculating max_hw_sectors
Revert "drm/amdgpu: use dirty framebuffer helper"
dmaengine: mxs: use platform_driver_register
drm/virtio: Check whether transferred 2D BO is shmem
drm/virtio: Unlock reservations on virtio_gpu_object_shmem_init() error
drm/virtio: Use appropriate atomic state in virtio_gpu_plane_cleanup_fb()
drm/udl: Restore display mode on resume
arm64: errata: Add Cortex-A55 to the repeat tlbi list
mm/damon: validate if the pmd entry is present before accessing
mm/mmap: undo ->mmap() when arch_validate_flags() fails
xen/gntdev: Prevent leaking grants
xen/gntdev: Accommodate VMA splitting
PCI: Sanitise firmware BAR assignments behind a PCI-PCI bridge
serial: 8250: Let drivers request full 16550A feature probing
serial: 8250: Request full 16550A feature probing for OxSemi PCIe devices
NFSD: Protect against send buffer overflow in NFSv3 READDIR
NFSD: Protect against send buffer overflow in NFSv2 READ
NFSD: Protect against send buffer overflow in NFSv3 READ
powercap: intel_rapl: Use standard Energy Unit for SPR Dram RAPL domain
powerpc/boot: Explicitly disable usage of SPE instructions
slimbus: qcom-ngd: use correct error in message of pdr_add_lookup() failure
slimbus: qcom-ngd: cleanup in probe error path
scsi: qedf: Populate sysfs attributes for vport
gpio: rockchip: request GPIO mux to pinctrl when setting direction
pinctrl: rockchip: add pinmux_ops.gpio_set_direction callback
fbdev: smscufx: Fix use-after-free in ufx_ops_open()
ksmbd: fix endless loop when encryption for response fails
ksmbd: Fix wrong return value and message length check in smb2_ioctl()
ksmbd: Fix user namespace mapping
fs: record I_DIRTY_TIME even if inode already has I_DIRTY_INODE
btrfs: fix race between quota enable and quota rescan ioctl
btrfs: set generation before calling btrfs_clean_tree_block in btrfs_init_new_buffer
f2fs: complete checkpoints during remount
f2fs: flush pending checkpoints when freezing super
f2fs: increase the limit for reserve_root
f2fs: fix to do sanity check on destination blkaddr during recovery
f2fs: fix to do sanity check on summary info
hardening: Avoid harmless Clang option under CONFIG_INIT_STACK_ALL_ZERO
hardening: Remove Clang's enable flag for -ftrivial-auto-var-init=zero
jbd2: wake up journal waiters in FIFO order, not LIFO
jbd2: fix potential buffer head reference count leak
jbd2: fix potential use-after-free in jbd2_fc_wait_bufs
jbd2: add miss release buffer head in fc_do_one_pass()
ext4: avoid crash when inline data creation follows DIO write
ext4: fix null-ptr-deref in ext4_write_info
ext4: make ext4_lazyinit_thread freezable
ext4: fix check for block being out of directory size
ext4: don't increase iversion counter for ea_inodes
ext4: ext4_read_bh_lock() should submit IO if the buffer isn't uptodate
ext4: place buffer head allocation before handle start
ext4: fix dir corruption when ext4_dx_add_entry() fails
ext4: fix miss release buffer head in ext4_fc_write_inode
ext4: fix potential memory leak in ext4_fc_record_modified_inode()
ext4: fix potential memory leak in ext4_fc_record_regions()
ext4: update 'state->fc_regions_size' after successful memory allocation
livepatch: fix race between fork and KLP transition
ftrace: Properly unset FTRACE_HASH_FL_MOD
ring-buffer: Allow splice to read previous partially read pages
ring-buffer: Have the shortest_full queue be the shortest not longest
ring-buffer: Check pending waiters when doing wake ups as well
ring-buffer: Add ring_buffer_wake_waiters()
ring-buffer: Fix race between reset page and reading page
tracing: Disable interrupt or preemption before acquiring arch_spinlock_t
tracing: Wake up ring buffer waiters on closing of the file
tracing: Wake up waiters when tracing is disabled
tracing: Add ioctl() to force ring buffer waiters to wake up
tracing: Move duplicate code of trace_kprobe/eprobe.c into header
tracing: Add "(fault)" name injection to kernel probes
tracing: Fix reading strings from synthetic events
thunderbolt: Explicitly enable lane adapter hotplug events at startup
efi: libstub: drop pointless get_memory_map() call
media: cedrus: Set the platform driver data earlier
media: cedrus: Fix endless loop in cedrus_h265_skip_bits()
blk-wbt: call rq_qos_add() after wb_normal is initialized
KVM: x86/emulator: Fix handing of POP SS to correctly set interruptibility
KVM: nVMX: Unconditionally purge queued/injected events on nested "exit"
KVM: nVMX: Don't propagate vmcs12's PERF_GLOBAL_CTRL settings to vmcs02
KVM: VMX: Drop bits 31:16 when shoving exception error code into VMCS
staging: greybus: audio_helper: remove unused and wrong debugfs usage
drm/nouveau/kms/nv140-: Disable interlacing
drm/nouveau: fix a use-after-free in nouveau_gem_prime_import_sg_table()
drm/i915: Fix watermark calculations for gen12+ RC CCS modifier
drm/i915: Fix watermark calculations for gen12+ MC CCS modifier
drm/i915: Fix watermark calculations for gen12+ CCS+CC modifier
drm/amd/display: Fix vblank refcount in vrr transition
smb3: must initialize two ACL struct fields to zero
selinux: use "grep -E" instead of "egrep"
ima: fix blocking of security.ima xattrs of unsupported algorithms
userfaultfd: open userfaultfds with O_RDONLY
ntfs3: rework xattr handlers and switch to POSIX ACL VFS helpers
thermal: cpufreq_cooling: Check the policy first in cpufreq_cooling_register()
sh: machvec: Use char[] for section boundaries
MIPS: SGI-IP27: Free some unused memory
MIPS: SGI-IP27: Fix platform-device leak in bridge_platform_create()
ARM: 9244/1: dump: Fix wrong pg_level in walk_pmd()
ARM: 9247/1: mm: set readonly for MT_MEMORY_RO with ARM_LPAE
objtool: Preserve special st_shndx indexes in elf_update_symbol
nfsd: Fix a memory leak in an error handling path
SUNRPC: Fix svcxdr_init_decode's end-of-buffer calculation
SUNRPC: Fix svcxdr_init_encode's buflen calculation
NFSD: Protect against send buffer overflow in NFSv2 READDIR
NFSD: Fix handling of oversized NFSv4 COMPOUND requests
wifi: rtlwifi: 8192de: correct checking of IQK reload
wifi: ath10k: add peer map clean up for peer delete in ath10k_sta_state()
leds: lm3601x: Don't use mutex after it was destroyed
bpf: Fix reference state management for synchronous callbacks
wifi: mac80211: allow bw change during channel switch in mesh
bpftool: Fix a wrong type cast in btf_dumper_int
spi: mt7621: Fix an error message in mt7621_spi_probe()
x86/resctrl: Fix to restore to original value when re-enabling hardware prefetch register
xsk: Fix backpressure mechanism on Tx
bpf: Disable preemption when increasing per-cpu map_locked
bpf: Propagate error from htab_lock_bucket() to userspace
bpf: Use this_cpu_{inc|dec|inc_return} for bpf_task_storage_busy
Bluetooth: btusb: mediatek: fix WMT failure during runtime suspend
wifi: rtl8xxxu: tighten bounds checking in rtl8xxxu_read_efuse()
wifi: rtw88: add missing destroy_workqueue() on error path in rtw_core_init()
selftests/xsk: Avoid use-after-free on ctx
spi: qup: add missing clk_disable_unprepare on error in spi_qup_resume()
spi: qup: add missing clk_disable_unprepare on error in spi_qup_pm_resume_runtime()
wifi: rtl8xxxu: Fix skb misuse in TX queue selection
spi: meson-spicc: do not rely on busy flag in pow2 clk ops
bpf: btf: fix truncated last_member_type_id in btf_struct_resolve
wifi: rtl8xxxu: gen2: Fix mistake in path B IQ calibration
wifi: rtl8xxxu: Remove copy-paste leftover in gen2_update_rate_mask
wifi: mt76: sdio: fix transmitting packet hangs
wifi: mt76: mt7615: add mt7615_mutex_acquire/release in mt7615_sta_set_decap_offload
wifi: mt76: mt7915: do not check state before configuring implicit beamform
Bluetooth: RFCOMM: Fix possible deadlock on socket shutdown/release
net: fs_enet: Fix wrong check in do_pd_setup
bpf: Ensure correct locking around vulnerable function find_vpid()
Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure
netfilter: conntrack: fix the gc rescheduling delay
netfilter: conntrack: revisit the gc initial rescheduling bias
wifi: ath11k: fix number of VHT beamformee spatial streams
x86/microcode/AMD: Track patch allocation size explicitly
x86/cpu: Include the header of init_ia32_feat_ctl()'s prototype
spi: dw: Fix PM disable depth imbalance in dw_spi_bt1_probe
spi/omap100k:Fix PM disable depth imbalance in omap1_spi100k_probe
skmsg: Schedule psock work if the cached skb exists on the psock
i2c: mlxbf: support lock mechanism
Bluetooth: hci_core: Fix not handling link timeouts propertly
xfrm: Reinject transport-mode packets through workqueue
netfilter: nft_fib: Fix for rpath check with VRF devices
spi: s3c64xx: Fix large transfers with DMA
wifi: rtl8xxxu: Fix AIFS written to REG_EDCA_*_PARAM
vhost/vsock: Use kvmalloc/kvfree for larger packets.
eth: alx: take rtnl_lock on resume
mISDN: fix use-after-free bugs in l1oip timer handlers
sctp: handle the error returned from sctp_auth_asoc_init_active_key
tcp: fix tcp_cwnd_validate() to not forget is_cwnd_limited
spi: Ensure that sg_table won't be used after being freed
hwmon: (pmbus/mp2888) Fix sensors readouts for MPS Multi-phase mp2888 controller
net: rds: don't hold sock lock when cancelling work from rds_tcp_reset_callbacks()
bnx2x: fix potential memory leak in bnx2x_tpa_stop()
net: wwan: iosm: Call mutex_init before locking it
net/ieee802154: reject zero-sized raw_sendmsg()
once: add DO_ONCE_SLOW() for sleepable contexts
net: mvpp2: fix mvpp2 debugfs leak
drm: bridge: adv7511: fix CEC power down control register offset
drm: bridge: adv7511: unregister cec i2c device after cec adapter
drm/bridge: Avoid uninitialized variable warning
drm/mipi-dsi: Detach devices when removing the host
drm/virtio: Correct drm_gem_shmem_get_sg_table() error handling
drm/bridge: parade-ps8640: Fix regulator supply order
drm/dp_mst: fix drm_dp_dpcd_read return value checks
drm:pl111: Add of_node_put() when breaking out of for_each_available_child_of_node()
ASoC: mt6359: fix tests for platform_get_irq() failure
platform/chrome: fix double-free in chromeos_laptop_prepare()
platform/chrome: fix memory corruption in ioctl
ASoC: tas2764: Allow mono streams
ASoC: tas2764: Drop conflicting set_bias_level power setting
ASoC: tas2764: Fix mute/unmute
platform/x86: msi-laptop: Fix old-ec check for backlight registering
platform/x86: msi-laptop: Fix resource cleanup
platform/chrome: cros_ec_typec: Correct alt mode index
drm/amdgpu: add missing pci_disable_device() in amdgpu_pmops_runtime_resume()
drm/bridge: megachips: Fix a null pointer dereference bug
ASoC: rsnd: Add check for rsnd_mod_power_on
ALSA: hda: beep: Simplify keep-power-at-enable behavior
drm/bochs: fix blanking
drm/omap: dss: Fix refcount leak bugs
drm/amdgpu: Fix memory leak in hpd_rx_irq_create_workqueue()
mmc: au1xmmc: Fix an error handling path in au1xmmc_probe()
ASoC: eureka-tlv320: Hold reference returned from of_find_xxx API
drm/msm/dpu: index dpu_kms->hw_vbif using vbif_idx
drm/msm/dp: correct 1.62G link rate at dp_catalog_ctrl_config_msa()
drm/vmwgfx: Fix memory leak in vmw_mksstat_add_ioctl()
ASoC: codecs: tx-macro: fix kcontrol put
ASoC: da7219: Fix an error handling path in da7219_register_dai_clks()
ALSA: dmaengine: increment buffer pointer atomically
mmc: wmt-sdmmc: Fix an error handling path in wmt_mci_probe()
ASoC: wm8997: Fix PM disable depth imbalance in wm8997_probe
ASoC: wm5110: Fix PM disable depth imbalance in wm5110_probe
ASoC: wm5102: Fix PM disable depth imbalance in wm5102_probe
ASoC: mt6660: Fix PM disable depth imbalance in mt6660_i2c_probe
ALSA: hda/hdmi: Don't skip notification handling during PM operation
memory: pl353-smc: Fix refcount leak bug in pl353_smc_probe()
memory: of: Fix refcount leak bug in of_get_ddr_timings()
memory: of: Fix refcount leak bug in of_lpddr3_get_ddr_timings()
locks: fix TOCTOU race when granting write lease
soc: qcom: smsm: Fix refcount leak bugs in qcom_smsm_probe()
soc: qcom: smem_state: Add refcounting for the 'state->of_node'
ARM: dts: imx6qdl-kontron-samx6i: hook up DDC i2c bus
ARM: dts: turris-omnia: Fix mpp26 pin name and comment
ARM: dts: kirkwood: lsxl: fix serial line
ARM: dts: kirkwood: lsxl: remove first ethernet port
ia64: export memory_add_physaddr_to_nid to fix cxl build error
soc/tegra: fuse: Drop Kconfig dependency on TEGRA20_APB_DMA
arm64: dts: ti: k3-j7200: fix main pinmux range
ARM: dts: exynos: correct s5k6a3 reset polarity on Midas family
ARM: Drop CMDLINE_* dependency on ATAGS
ext4: don't run ext4lazyinit for read-only filesystems
arm64: ftrace: fix module PLTs with mcount
ARM: dts: exynos: fix polarity of VBUS GPIO of Origen
iio: adc: at91-sama5d2_adc: fix AT91_SAMA5D2_MR_TRACKTIM_MAX
iio: adc: at91-sama5d2_adc: check return status for pressure and touch
iio: adc: at91-sama5d2_adc: lock around oversampling and sample freq
iio: adc: at91-sama5d2_adc: disable/prepare buffer on suspend/resume
iio: inkern: only release the device node when done with it
iio: inkern: fix return value in devm_of_iio_channel_get_by_name()
iio: ABI: Fix wrong format of differential capacitance channel ABI.
iio: magnetometer: yas530: Change data type of hard_offsets to signed
RDMA/mlx5: Don't compare mkey tags in DEVX indirect mkey
usb: common: debug: Check non-standard control requests
clk: meson: Hold reference returned by of_get_parent()
clk: oxnas: Hold reference returned by of_get_parent()
clk: qoriq: Hold reference returned by of_get_parent()
clk: berlin: Add of_node_put() for of_get_parent()
clk: sprd: Hold reference returned by of_get_parent()
clk: tegra: Fix refcount leak in tegra210_clock_init
clk: tegra: Fix refcount leak in tegra114_clock_init
clk: tegra20: Fix refcount leak in tegra20_clock_init
HSI: omap_ssi: Fix refcount leak in ssi_probe
HSI: omap_ssi_port: Fix dma_map_sg error check
media: exynos4-is: fimc-is: Add of_node_put() when breaking out of loop
tty: xilinx_uartps: Fix the ignore_status
media: meson: vdec: add missing clk_disable_unprepare on error in vdec_hevc_start()
media: uvcvideo: Fix memory leak in uvc_gpio_parse
media: uvcvideo: Use entity get_cur in uvc_ctrl_set
media: xilinx: vipp: Fix refcount leak in xvip_graph_dma_init
RDMA/rxe: Fix "kernel NULL pointer dereference" error
RDMA/rxe: Fix the error caused by qp->sk
misc: ocxl: fix possible refcount leak in afu_ioctl()
fpga: prevent integer overflow in dfl_feature_ioctl_set_irq()
dmaengine: hisilicon: Disable channels when unregister hisi_dma
dmaengine: hisilicon: Fix CQ head update
dmaengine: hisilicon: Add multi-thread support for a DMA channel
dyndbg: fix static_branch manipulation
dyndbg: fix module.dyndbg handling
dyndbg: let query-modname override actual module name
dyndbg: drop EXPORTed dynamic_debug_exec_queries
clk: qcom: sm6115: Select QCOM_GDSC
mtd: devices: docg3: check the return value of devm_ioremap() in the probe
phy: amlogic: phy-meson-axg-mipi-pcie-analog: Hold reference returned by of_get_parent()
phy: phy-mtk-tphy: fix the phy type setting issue
mtd: rawnand: intel: Read the chip-select line from the correct OF node
mtd: rawnand: intel: Remove undocumented compatible string
mtd: rawnand: fsl_elbc: Fix none ECC mode
RDMA/irdma: Align AE id codes to correct flush code and event
RDMA/srp: Fix srp_abort()
RDMA/siw: Always consume all skbuf data in sk_data_ready() upcall.
RDMA/siw: Fix QP destroy to wait for all references dropped.
ata: fix ata_id_sense_reporting_enabled() and ata_id_has_sense_reporting()
ata: fix ata_id_has_devslp()
ata: fix ata_id_has_ncq_autosense()
ata: fix ata_id_has_dipm()
mtd: rawnand: meson: fix bit map use in meson_nfc_ecc_correct()
md: Replace snprintf with scnprintf
md/raid5: Ensure stripe_fill happens on non-read IO with journal
md/raid5: Remove unnecessary bio_put() in raid5_read_one_chunk()
RDMA/cm: Use SLID in the work completion as the DLID in responder side
IB: Set IOVA/LENGTH on IB_MR in core/uverbs layers
xhci: Don't show warning for reinit on known broken suspend
usb: gadget: function: fix dangling pnp_string in f_printer.c
drivers: serial: jsm: fix some leaks in probe
serial: 8250: Toggle IER bits on only after irq has been set up
tty: serial: fsl_lpuart: disable dma rx/tx use flags in lpuart_dma_shutdown
phy: qualcomm: call clk_disable_unprepare in the error handling
staging: vt6655: fix some erroneous memory clean-up loops
slimbus: qcom-ngd-ctrl: allow compile testing without QCOM_RPROC_COMMON
firmware: google: Test spinlock on panic path to avoid lockups
serial: 8250: Fix restoring termios speed after suspend
scsi: libsas: Fix use-after-free bug in smp_execute_task_sg()
scsi: iscsi: Rename iscsi_conn_queue_work()
scsi: iscsi: Add recv workqueue helpers
scsi: iscsi: Run recv path from workqueue
scsi: iscsi: iscsi_tcp: Fix null-ptr-deref while calling getpeername()
clk: qcom: apss-ipq6018: mark apcs_alias0_core_clk as critical
clk: qcom: gcc-sm6115: Override default Alpha PLL regs
RDMA/rxe: Fix resize_finish() in rxe_queue.c
fsi: core: Check error number after calling ida_simple_get
mfd: intel_soc_pmic: Fix an error handling path in intel_soc_pmic_i2c_probe()
mfd: fsl-imx25: Fix an error handling path in mx25_tsadc_setup_irq()
mfd: lp8788: Fix an error handling path in lp8788_probe()
mfd: lp8788: Fix an error handling path in lp8788_irq_init() and lp8788_irq_init()
mfd: fsl-imx25: Fix check for platform_get_irq() errors
mfd: sm501: Add check for platform_driver_register()
clk: mediatek: mt8183: mfgcfg: Propagate rate changes to parent
dmaengine: ioat: stop mod_timer from resurrecting deleted timer in __cleanup()
usb: mtu3: fix failed runtime suspend in host only mode
spmi: pmic-arb: correct duplicate APID to PPID mapping logic
clk: vc5: Fix 5P49V6901 outputs disabling when enabling FOD
clk: baikal-t1: Fix invalid xGMAC PTP clock divider
clk: baikal-t1: Add shared xGMAC ref/ptp clocks internal parent
clk: baikal-t1: Add SATA internal ref clock buffer
clk: bcm2835: fix bcm2835_clock_rate_from_divisor declaration
clk: imx: scu: fix memleak on platform_device_add() fails
clk: ti: dra7-atl: Fix reference leak in of_dra7_atl_clk_probe
clk: ast2600: BCLK comes from EPLL
mailbox: mpfs: fix handling of the reg property
mailbox: mpfs: account for mbox offsets while sending
mailbox: bcm-ferxrm-mailbox: Fix error check for dma_map_sg
powerpc/configs: Properly enable PAPR_SCM in pseries_defconfig
powerpc/math_emu/efp: Include module.h
powerpc/sysdev/fsl_msi: Add missing of_node_put()
powerpc/pci_dn: Add missing of_node_put()
powerpc/powernv: add missing of_node_put() in opal_export_attrs()
powerpc: Fix fallocate and fadvise64_64 compat parameter combination
x86/hyperv: Fix 'struct hv_enlightened_vmcs' definition
powerpc/64s: Fix GENERIC_CPU build flags for PPC970 / G5
powerpc: Fix SPE Power ISA properties for e500v1 platforms
powerpc/kprobes: Fix null pointer reference in arch_prepare_kprobe()
powerpc/pseries/vas: Pass hw_cpu_id to node associativity HCALL
crypto: sahara - don't sleep when in softirq
crypto: hisilicon/zip - fix mismatch in get/set sgl_sge_nr
hwrng: arm-smccc-trng - fix NO_ENTROPY handling
cgroup: Honor caller's cgroup NS when resolving path
hwrng: imx-rngc - Moving IRQ handler registering after imx_rngc_irq_mask_clear()
crypto: qat - fix default value of WDT timer
crypto: hisilicon/qm - fix missing put dfx access
cgroup/cpuset: Enable update_tasks_cpumask() on top_cpuset
iommu/omap: Fix buffer overflow in debugfs
crypto: akcipher - default implementation for setting a private key
crypto: ccp - Release dma channels before dmaengine unrgister
crypto: inside-secure - Change swab to swab32
crypto: qat - fix DMA transfer direction
cifs: return correct error in ->calc_signature()
iommu/iova: Fix module config properly
tracing: kprobe: Fix kprobe event gen test module on exit
tracing: kprobe: Make gen test module work in arm and riscv
tracing/osnoise: Fix possible recursive locking in stop_per_cpu_kthreads
kbuild: remove the target in signal traps when interrupted
kbuild: rpm-pkg: fix breakage when V=1 is used
crypto: marvell/octeontx - prevent integer overflows
crypto: cavium - prevent integer overflow loading firmware
thermal/drivers/qcom/tsens-v0_1: Fix MSM8939 fourth sensor hw_id
ACPI: APEI: do not add task_work to kernel thread to avoid memory leak
f2fs: fix race condition on setting FI_NO_EXTENT flag
f2fs: fix to account FS_CP_DATA_IO correctly
selftest: tpm2: Add Client.__del__() to close /dev/tpm* handle
fs: dlm: fix race in lowcomms
rcu: Avoid triggering strict-GP irq-work when RCU is idle
rcu: Back off upon fill_page_cache_func() allocation failure
rcu-tasks: Convert RCU_LOCKDEP_WARN() to WARN_ONCE()
ACPI: video: Add Toshiba Satellite/Portege Z830 quirk
ACPI: tables: FPDT: Don't call acpi_os_map_memory() on invalid phys address
cpufreq: intel_pstate: Add Tigerlake support in no-HWP mode
MIPS: BCM47XX: Cast memcmp() of function to (void *)
powercap: intel_rapl: fix UBSAN shift-out-of-bounds issue
thermal: intel_powerclamp: Use get_cpu() instead of smp_processor_id() to avoid crash
ARM: decompressor: Include .data.rel.ro.local
ACPI: x86: Add a quirk for Dell Inspiron 14 2-in-1 for StorageD3Enable
x86/entry: Work around Clang __bdos() bug
NFSD: Return nfserr_serverfault if splice_ok but buf->pages have data
NFSD: fix use-after-free on source server when doing inter-server copy
wifi: brcmfmac: fix invalid address access when enabling SCAN log level
bpftool: Clear errno after libcap's checks
ice: set tx_tstamps when creating new Tx rings via ethtool
net: ethernet: ti: davinci_mdio: Add workaround for errata i2329
openvswitch: Fix double reporting of drops in dropwatch
openvswitch: Fix overreporting of drops in dropwatch
tcp: annotate data-race around tcp_md5sig_pool_populated
x86/mce: Retrieve poison range from hardware
wifi: ath9k: avoid uninit memory read in ath9k_htc_rx_msg()
thunderbolt: Add back Intel Falcon Ridge end-to-end flow control workaround
xfrm: Update ipcomp_scratches with NULL when freed
iavf: Fix race between iavf_close and iavf_reset_task
wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit()
Bluetooth: btintel: Mark Intel controller to support LE_STATES quirk
regulator: core: Prevent integer underflow
wifi: mt76: mt7921: reset msta->airtime_ac while clearing up hw value
Bluetooth: L2CAP: initialize delayed works at l2cap_chan_create()
Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times
can: bcm: check the result of can_send() in bcm_can_tx()
wifi: rt2x00: don't run Rt5592 IQ calibration on MT7620
wifi: rt2x00: set correct TX_SW_CFG1 MAC register for MT7620
wifi: rt2x00: set VGC gain for both chains of MT7620
wifi: rt2x00: set SoC wmac clock register
wifi: rt2x00: correctly set BBP register 86 for MT7620
hwmon: (sht4x) do not overflow clamping operation on 32-bit platforms
net: If sock is dead don't access sock's sk_wq in sk_stream_wait_memory
Bluetooth: L2CAP: Fix user-after-free
r8152: Rate limit overflow messages
drm/nouveau/nouveau_bo: fix potential memory leak in nouveau_bo_alloc()
drm: Use size_t type for len variable in drm_copy_field()
drm: Prevent drm_copy_field() to attempt copying a NULL pointer
drm/komeda: Fix handling of atomic commits in the atomic_commit_tail hook
gpu: lontium-lt9611: Fix NULL pointer dereference in lt9611_connector_init()
drm/amd/display: fix overflow on MIN_I64 definition
udmabuf: Set ubuf->sg = NULL if the creation of sg table fails
drm: bridge: dw_hdmi: only trigger hotplug event on link change
ALSA: usb-audio: Register card at the last interface
drm/vc4: vec: Fix timings for VEC modes
drm: panel-orientation-quirks: Add quirk for Anbernic Win600
platform/chrome: cros_ec: Notify the PM of wake events during resume
platform/x86: msi-laptop: Change DMI match / alias strings to fix module autoloading
ASoC: SOF: pci: Change DMI match info to support all Chrome platforms
drm/amdgpu: fix initial connector audio value
drm/meson: reorder driver deinit sequence to fix use-after-free bug
drm/meson: explicitly remove aggregate driver at module unload time
mmc: sdhci-msm: add compatible string check for sdm670
drm/dp: Don't rewrite link config when setting phy test pattern
drm/amd/display: Remove interface for periodic interrupt 1
ARM: dts: imx7d-sdb: config the max pressure for tsc2046
ARM: dts: imx6q: add missing properties for sram
ARM: dts: imx6dl: add missing properties for sram
ARM: dts: imx6qp: add missing properties for sram
ARM: dts: imx6sl: add missing properties for sram
ARM: dts: imx6sll: add missing properties for sram
ARM: dts: imx6sx: add missing properties for sram
kselftest/arm64: Fix validatation termination record after EXTRA_CONTEXT
arm64: dts: imx8mq-librem5: Add bq25895 as max17055's power supply
btrfs: dump extra info if one free space cache has more bitmaps than it should
btrfs: scrub: try to fix super block errors
btrfs: don't print information about space cache or tree every remount
ARM: 9242/1: kasan: Only map modules if CONFIG_KASAN_VMALLOC=n
clk: zynqmp: Fix stack-out-of-bounds in strncpy`
media: cx88: Fix a null-ptr-deref bug in buffer_prepare()
media: platform: fix some double free in meson-ge2d and mtk-jpeg and s5p-mfc
clk: zynqmp: pll: rectify rate rounding in zynqmp_pll_round_rate
usb: host: xhci-plat: suspend and resume clocks
usb: host: xhci-plat: suspend/resume clks for brcm
dmaengine: ti: k3-udma: Reset UDMA_CHAN_RT byte counters to prevent overflow
scsi: 3w-9xxx: Avoid disabling device if failing to enable it
nbd: Fix hung when signal interrupts nbd_start_device_ioctl()
iommu/arm-smmu-v3: Make default domain type of HiSilicon PTT device to identity
power: supply: adp5061: fix out-of-bounds read in adp5061_get_chg_type()
staging: vt6655: fix potential memory leak
blk-throttle: prevent overflow while calculating wait time
ata: libahci_platform: Sanity check the DT child nodes number
bcache: fix set_at_max_writeback_rate() for multiple attached devices
soundwire: cadence: Don't overwrite msg->buf during write commands
soundwire: intel: fix error handling on dai registration issues
HID: roccat: Fix use-after-free in roccat_read()
eventfd: guard wake_up in eventfd fs calls as well
md/raid5: Wait for MD_SB_CHANGE_PENDING in raid5d
usb: host: xhci: Fix potential memory leak in xhci_alloc_stream_info()
usb: musb: Fix musb_gadget.c rxstate overflow bug
arm64: dts: imx8mp: Add snps,gfladj-refclk-lpm-sel quirk to USB nodes
usb: dwc3: core: Enable GUCTL1 bit 10 for fixing termination error after resume bug
Revert "usb: storage: Add quirk for Samsung Fit flash"
staging: rtl8723bs: fix potential memory leak in rtw_init_drv_sw()
staging: rtl8723bs: fix a potential memory leak in rtw_init_cmd_priv()
scsi: tracing: Fix compile error in trace_array calls when TRACING is disabled
ext2: Use kvmalloc() for group descriptor array
nvme: copy firmware_rev on each init
nvmet-tcp: add bounds check on Transfer Tag
usb: idmouse: fix an uninit-value in idmouse_open
clk: bcm2835: Make peripheral PLLC critical
clk: bcm2835: Round UART input clock up
perf intel-pt: Fix segfault in intel_pt_print_info() with uClibc
io_uring/af_unix: defer registered files gc to io_uring release
io_uring: correct pinned_vm accounting
io_uring/rw: fix short rw error handling
io_uring/rw: fix error'ed retry return values
io_uring/rw: fix unexpected link breakage
mm: hugetlb: fix UAF in hugetlb_handle_userfault
net: ieee802154: return -EINVAL for unknown addr type
ALSA: usb-audio: Fix last interface check for registration
blk-wbt: fix that 'rwb->wc' is always set to 1 in wbt_init()
net: ethernet: ti: davinci_mdio: fix build for mdio bitbang uses
Revert "net/ieee802154: reject zero-sized raw_sendmsg()"
net/ieee802154: don't warn zero-sized raw_sendmsg()
drm/amd/display: Fix build breakage with CONFIG_DEBUG_FS=n
Kconfig.debug: simplify the dependency of DEBUG_INFO_DWARF4/5
Kconfig.debug: add toolchain checks for DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT
lib/Kconfig.debug: Add check for non-constant .{s,u}leb128 support to DWARF5
ext4: continue to expand file system when the target size doesn't reach
thermal: intel_powerclamp: Use first online CPU as control_cpu
gcov: support GCC 12.1 and newer compilers
io-wq: Fix memory leak in worker creation
Linux 5.15.75
Change-Id: I5a3ef9688fb31003940d7e1828f863b9d50f1da9
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
[ Upstream commit 94dc3471d1b2b58b3728558d0e3f264e9ce6ff59 ]
The strlen() function returns a size_t which is an unsigned int on 32-bit
arches and an unsigned long on 64-bit arches. But in the drm_copy_field()
function, the strlen() return value is assigned to an 'int len' variable.
Later, the len variable is passed as copy_from_user() third argument that
is an unsigned long parameter as well.
In theory, this can lead to an integer overflow via type conversion. Since
the assignment happens to a signed int lvalue instead of a size_t lvalue.
In practice though, that's unlikely since the values copied are set by DRM
drivers and not controlled by userspace. But using a size_t for len is the
correct thing to do anyways.
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220705100215.572498-2-javierm@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Steps on the way to 5.15-rc1
Resolves merge conflicts in:
drivers/firmware/Makefile
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Icdf4539d0985fd5a3430455c3a2b603b2b456a44
drm: Return -ENOTTY for non-drm ioctls
Return -ENOTTY from drm_ioctl() when userspace passes in a cmd number
which doesn't relate to the drm subsystem.
Glibc uses the TCGETS ioctl to implement isatty(), and without this
change isatty() returns it incorrectly returns true for drm devices.
To test run this command:
$ if [ -t 0 ]; then echo is a tty; fi < /dev/dri/card0
which shows "is a tty" without this patch.
This may also modify memory which the userspace application is not
expecting.
Signed-off-by: Charles Baylis <cb-kernel@fishzet.co.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/YPG3IBlzaMhfPqCr@stando.fishzet.co.uk
Steps on the way to 5.11-rc1.
Required resolutions in:
include/linux/dma-buf.h
drivers/dma-buf/heaps/system_heap.c
drivers/staging/android/ion/ion_dma_buf.c
drivers/dma-buf/heaps/heap-helpers.c
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ic546af62c7f61b5c754ece178c32f45878013c3a
Steps on the way to 5.9-rc1
Resolves conflicts in:
drivers/irqchip/qcom-pdc.c
include/linux/device.h
net/xfrm/xfrm_state.c
security/lsm_audit.c
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I4aeb3d04f4717714a421721eb3ce690c099bb30a
drm-misc-next for v5.9:
UAPI Changes:
- Add DRM_MODE_TYPE_USERDEF for video modes specified in cmdline.
Cross-subsystem Changes:
- Assorted devicetree binding updates.
- Add might_sleep() to dma_fence_wait().
- Fix fbdev's get_user_pages_fast() handling, and use pin_user_pages.
- Small cleanup with IS_BUILTIN in video/fbdev drivers.
- Fix video/hdmi coding style for infoframe size.
Core Changes:
- Silence vblank output during init.
- Fix DP-MST corruption during send msg timeout.
- Clear leak in drm_gem_objecs_lookup().
- Make newlines work with force connector attribute.
- Fix module refcounting error in drm_encoder_slave, and use new i2c api.
- Header fix for drm_managed.c
- More struct_mutex removal for !legacy drivers:
- Remove gem_free_object()
- Removal of drm_gem_object_put_unlocked().
- Show current->comm alongside pid in debug printfs.
- Add drm_client_modeset_check() + drm_client_framebuffer_flush().
- Replace drm_fb_swab16 with drm_fb_swap that also supports 32-bits.
- Remove mode->vrefresh, and compactify drm_display_mode.
- Use drm_* macros for logging and warnings.
- Add WARN when drm_gem_get_pages is used on a private obj.
- Handle importing and imported dmabuf better in shmem helpers.
- Small fix for drm/mm hole size comparison, and remove invalid entry optimization.
- Add a drm/mm selftest.
- Set DSI connector type for DSI panels.
- Assorted small fixes and documentation updates.
- Fix DDI I2C device registration for MST ports, and flushing on destroy.
- Fix master_set return type, used by vmwgfx.
- Make the drm_set/drop_master ioctl symmetrical.
Driver Changes:
Allow iommu in the sun4i driver and use it for sun8i.
- Simplify backlight lookup for omap, amba-clcd and tilcdc.
- Hold reg_lock for rockchip.
- Add support for bridge gpio and lane reordering + polarity to ti-sn65dsi86, and fix clock choice.
- Small assorted fixes to tilcdc, vc4, i915, omap, fbdev/sm712fb, fbdev/pxafb, console/newport_con, msm, virtio, udl, malidp, hdlcd, bridge/ti-sn65dsi86, panfrost.
- Remove hw cursor support for mgag200, and use simple kms helper + shmem helpers.
- Add support for KOE Allow iommu in the sun4i driver and use it for sun8i.
- Simplify backlight lookup for omap, amba-clcd and tilcdc.
- Hold reg_lock for rockchip.
- Add support for bridge gpio and lane reordering + polarity to ti-sn65dsi86, and fix clock choice.
- Small assorted fixes to tilcdc, vc4 (multiple), i915.
- Remove hw cursor support for mgag200, and use simple kms helper + shmem helpers.
- Add support for KOE TX26D202VM0BWA panel.
- Use GEM CMA functions in arc, arm, atmel-hlcdc, fsi-dcu, hisilicon, imx, ingenic, komeda, malidp, mcde, meson, msxfb, rcar-du, shmobile, stm, sti, tilcdc, tve200, zte.
- Remove gem_print_info.
- Improve gem_create_object_helper so udl can use shmem helpers.
- Convert vc4 dt bindings to schemas, and add clock properties.
- Device initialization cleanups for mgag200.
- Add a workaround to fix DP-MST short pulses handling on broken hardware in i915.
- Allow build test compiling arm drivers.
- Use managed pci functions in mgag200 and ast.
- Use dev_groups in malidp.
- Add per pixel alpha support for PX30 VOP in rockchip.
- Silence deferred probe logs in panfrost.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/001cd9a6-405d-4e29-43d8-354f53ae4e8b@linux.intel.com
Tiny merge resolutions along the way to 5.8-rc1.
Change-Id: I0036e22af4e398b0bb3b9855ff90d60b9c0227ee
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This is a step along the way for the 5.7-rc1 merge, and resolves a bunch
of the DRM-specific merge conflicts in one point.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I056c4edc603fdd3c24588c8a9305cfa67111eb5b
This commit reworks the permission handling of the two ioctls. In
particular it enforced the CAP_SYS_ADMIN check only, if:
- we're issuing the ioctl from process other than the one which opened
the node, and
- we are, or were master in the past
This ensures that we:
- do not regress the systemd-logind style of DRM_MASTER arbitrator
- allow applications which do not use systemd-logind to drop their
master capabilities (and regain them at later point) ... w/o running as
root.
See the comment above drm_master_check_perm() for more details.
v1:
- Tweak wording, fixup all checks, add igt test
v2:
- Add a few more comments, grammar nitpicks.
Cc: Adam Jackson <ajax@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Pekka Paalanen <ppaalanen@gmail.com>
Testcase: igt/core_setmaster/master-drop-set-user
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200319172930.230583-1-emil.l.velikov@gmail.com
Minigbm uses dumb ioctls when the virtio gpu is in 2D mode. This
changes allows those calls to pass the permission checks in
drm_ioctl_permit().
Bug: b/123764798
Test: booted cuttlefish on drm stack w/o 3d
Change-Id: I872ba8f6d0a284127178dd60f8a2048e5e7397fb
Signed-off-by: Jason Macnak <natsu@google.com>
Signed-off-by: Alistair Delva <adelva@google.com>
Pull rst conversion of docs from Mauro Carvalho Chehab:
"As agreed with Jon, I'm sending this big series directly to you, c/c
him, as this series required a special care, in order to avoid
conflicts with other trees"
* tag 'docs/v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (77 commits)
docs: kbuild: fix build with pdf and fix some minor issues
docs: block: fix pdf output
docs: arm: fix a breakage with pdf output
docs: don't use nested tables
docs: gpio: add sysfs interface to the admin-guide
docs: locking: add it to the main index
docs: add some directories to the main documentation index
docs: add SPDX tags to new index files
docs: add a memory-devices subdir to driver-api
docs: phy: place documentation under driver-api
docs: serial: move it to the driver-api
docs: driver-api: add remaining converted dirs to it
docs: driver-api: add xilinx driver API documentation
docs: driver-api: add a series of orphaned documents
docs: admin-guide: add a series of orphaned documents
docs: cgroup-v1: add it to the admin-guide book
docs: aoe: add it to the driver-api book
docs: add some documentation dirs to the driver-api book
docs: driver-model: move it to the driver-api book
docs: lp855x-driver.rst: add it to the driver-api book
...
Rename the iio documentation files to ReST, add an
index for them and adjust in order to produce a nice html
output via the Sphinx build system.
The cdrom.txt and hdio.txt have their own particular syntax.
In order to speedup the conversion, I used a small ancillary
perl script:
my $d;
$d .= $_ while(<>);
$d =~ s/(\nCDROM\S+)\s+(\w[^\n]*)/$1\n\t$2\n/g;
$d =~ s/(\nHDIO\S+)\s+(\w[^\n]*)/$1\n\t$2\n/g;
$d =~ s/(\n\s*usage:)[\s\n]*(\w[^\n]*)/$1:\n\n\t $2\n/g;
$d =~ s/(\n\s*)(E\w+[\s\n]*\w[^\n]*)/$1- $2/g;
$d =~ s/(\n\s*)(inputs|outputs|notes):\s*(\w[^\n]*)/$1$2:\n\t\t$3\n/g;
print $d;
It basically add blank lines on a few interesting places. The
script is not perfect: still several things require manual work,
but it saved quite some time doing some obvious stuff.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This completes Emil's series of removing DRM_UNLOCKED from modern
drivers. It's entirely cargo-culted since we ignore it on
non-DRIVER_LEGACY drivers since:
commit ea487835e8
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Mon Sep 28 21:42:40 2015 +0200
drm: Enforce unlocked ioctl operation for kms driver ioctls
Now justifying why we can do this for legacy drives too (and hence
close the source of all the bogus copypasting) is a bit more involved.
DRM_UNLOCKED was introduced in:
commit ed8b670409
Author: Arnd Bergmann <arnd@arndb.de>
Date: Wed Dec 16 22:17:09 2009 +0000
drm: convert drm_ioctl to unlocked_ioctl
As a immediate hack to keep i810 happy, which would have deadlocked
without this trickery. The old BKL is automatically dropped in
schedule(), and hence the i810 vs. mmap_sem deadlock didn't actually
cause a real deadlock. But with a mutex it would. The solution was to
annotate these as DRM_UNLOCKED and mark i810 unsafe on SMP machines.
This conversion caused a regression, because unlike the BKL a mutex
isn't dropped over schedule (that thing again), which caused a vblank
wait in one thread to block the entire desktop and all its apps. Back
then we did vblank scheduling by blocking in the client, awesome isn't
it. This was fixed quickly in (ok not so quickly, took 2 years):
commit 8f4ff2b06a
Author: Ilija Hadzic <ihadzic@research.bell-labs.com>
Date: Mon Oct 31 17:46:18 2011 -0400
drm: do not sleep on vblank while holding a mutex
All the other DRM_UNLOCKED annotations for all the core ioctls was
work to reach finer-grained locking for modern drivers. This took
years, and culminated in:
commit fdd5b877e9
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Sat Dec 10 22:52:54 2016 +0100
drm: Enforce BKL-less ioctls for modern drivers
DRM_UNLOCKED was never required by any legacy drivers, except for the
vblank_wait IOCTL. Therefore we will not regress these old drivers by
going back to where we've been in 2011. For all modern drivers nothing
will change.
To make this perfectly clear, also add a comment to DRM_UNLOCKED.
v2: Don't forget about drm_ioc32.c (Michel).
Cc: Michel Dänzer <michel@daenzer.net>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Acked-by: Emil Velikov <emil.velikov@collabora.com>
Acked-by: Michel Dänzer <michel@daenzer.net>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190605120835.2798-1-daniel.vetter@ffwll.ch
If you don't want the legacy drivers, then lets get rid of all the
legacy codepaths from the core module.
This drop the size of drm.ko for me by about 10%.
380515 7422 4192 392129 5fbc1 ../../drm-next-build/drivers/gpu/drm/drm.ko
351736 7298 4192 363226 58ada ../../drm-next-build/drivers/gpu/drm/drm.ko
v2: drop drm_lock as well, fix some DMA->DRM typos
v3: avoid ifdefs in mainline code
v4: rework ioctl defs
v4.1: fix nouveau Kconfig
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This reverts commit 8059add047.
This commit while seemingly a good idea, breaks a radv check,
for a node being master because something succeeds where it failed
before now.
Apply the Linus rule, revert early and try again, we don't break
userspace.
Signed-off-by: Dave Airlie <airlied@redhat.com>
There are cases (in mesa and applications) where one would open the
primary node without properly authenticating the client.
Sometimes we don't check if the authentication succeeds, but there's
also cases we simply forget to do it.
The former was a case for Mesa where it did not not check the return
value of drmGetMagic() [1]. That was fixed recently although, there's
the question of older drivers or other apps that exbibit this behaviour.
While omitting the call results in issues as seen in [2] and [3].
In the libva case, libva itself doesn't authenticate the DRM client and
the vaGetDisplayDRM documentation doesn't mention if the app should
either.
As of today, the official vainfo utility doesn't authenticate.
To workaround issues like these, some users resort to running their apps
under sudo. Which admittedly isn't always a good idea.
Since any DRIVER_RENDER driver has sufficient isolation between clients,
we can use that, for unauthenticated [primary node] ioctls that require
DRM_AUTH. But only if the respective ioctl is tagged as DRM_RENDER_ALLOW.
v2:
- Rework/simplify if check (Daniel V)
- Add examples to commit messages, elaborate. (Daniel V)
v3:
- Use single unlikely (Daniel V)
[1] 2bc1f5c2e7/src/egl/drivers/dri2/platform_wayland.c (L1136)
[2] https://lists.freedesktop.org/archives/libva/2016-July/004185.html
[3] https://gitlab.freedesktop.org/mesa/kmscube/issues/1
Testcase: igt/core_unauth_vs_render
Cc: intel-gfx@lists.freedesktop.org
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190114085408.15933-2-emil.l.velikov@gmail.com
nr is indirectly controlled by user-space, hence leading to a
potential exploitation of the Spectre variant 1 vulnerability.
This issue was detected with the help of Smatch:
drivers/gpu/drm/drm_ioctl.c:805 drm_ioctl() warn: potential spectre issue 'dev->driver->ioctls' [r]
drivers/gpu/drm/drm_ioctl.c:810 drm_ioctl() warn: potential spectre issue 'drm_ioctls' [r] (local cap)
drivers/gpu/drm/drm_ioctl.c:892 drm_ioctl_flags() warn: potential spectre issue 'drm_ioctls' [r] (local cap)
Fix this by sanitizing nr before using it to index dev->driver->ioctls
and drm_ioctls.
Notice that given that speculation windows are large, the policy is
to kill the speculation on the first load and not worry if it can be
completed with a dependent load/store [1].
[1] https://marc.info/?l=linux-kernel&m=152449131114778&w=2
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20181220000015.GA18973@embeddedor
If the ioctl is not supported on a particular piece of HW/driver
combination, report ENOTSUP (aka EOPNOTSUPP) so that it can be easily
distinguished from both the lack of the ioctl and from a regular invalid
parameter.
v2: Across all the kms ioctls we had a mixture of reporting EINVAL,
ENODEV and a few ENOTSUPP (most where EINVAL) for a failed
drm_core_check_feature(). Update everybody to report ENOTSUPP.
v3: ENOTSUPP is an internal errno! It's value (524) does not correspond
to a POSIX errno, the one we want is ENOTSUP. However,
uapi/asm-generic/errno.h doesn't include ENOTSUP but man errno says
"ENOTSUP and EOPNOTSUPP have the same value on Linux,
but according to POSIX.1 these error values should be
distinct."
so use EOPNOTSUPP as its equivalent.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> #v2
Link: https://patchwork.freedesktop.org/patch/msgid/20180913192050.24812-1-chris@chris-wilson.co.uk
Drivers must set the quirk_addfb_prefer_host_byte_order quirk to make
the drm_mode_addfb() compat code work correctly on bigendian machines.
If they don't they interpret pixel_format values incorrectly for bug
compatibility, which in turn implies the ADDFB2 ioctl does not work
correctly then. So block it to make userspace fallback to ADDFB.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20180907073213.20410-1-kraxel@redhat.com
Due to the fact that writeback connectors behave in a special way
in DRM (they always report being disconnected) we might confuse some
userspace. Add a client capability for writeback connectors that will
filter them out for clients that don't understand the capability.
Changelog:
- only accept the capability if the client has already set the
DRM_CLIENT_CAP_ATOMIC one.
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Brian Starkey <brian.starkey@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Brian Starkey <brian.starkey@arm.com>
Link: https://patchwork.freedesktop.org/patch/229038/
