301 Commits

Author	SHA1	Message	Date
Greg Kroah-Hartman	b049ff121c	Merge 5.15.75 into android13-5.15-lts ... 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>	2022-11-16 16:28:57 +00:00
Sasha Levin	5ca155aa79	Revert "fs: check FMODE_LSEEK to control internal pipe splicing" ... This reverts commit fd0a6e99b61e6c08fa5cf585d54fd956f70c73a6. Which was upstream commit 97ef77c52b789ec1411d360ed99dca1efe4b2c81. The commit is missing dependencies and breaks NFS tests, remove it for now. Reported-by: Saeed Mirzamohammadi <saeed.mirzamohammadi@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org>	2022-10-26 12:34:17 +02:00
Greg Kroah-Hartman	8fd5b33ea5	Merge 5.15.61 into android13-5.15-lts ... 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: I0849e49fb265651bf6277e4ead9c440d50ed7536	2022-08-22 14:29:30 +02:00
Jason A. Donenfeld	f29659bad1	fs: check FMODE_LSEEK to control internal pipe splicing ... [ Upstream commit 97ef77c52b789ec1411d360ed99dca1efe4b2c81 ] The original direct splicing mechanism from Jens required the input to be a regular file because it was avoiding the special socket case. It also recognized blkdevs as being close enough to a regular file. But it forgot about chardevs, which behave the same way and work fine here. This is an okayish heuristic, but it doesn't totally work. For example, a few chardevs should be spliceable here. And a few regular files shouldn't. This patch fixes this by instead checking whether FMODE_LSEEK is set, which represents decently enough what we need rewinding for when splicing to internal pipes. Fixes: b92ce55893 ("[PATCH] splice: add direct fd <-> fd splicing support") Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Sasha Levin <sashal@kernel.org>	2022-08-17 14:23:31 +02:00
Greg Kroah-Hartman	0a77fca3aa	ANDROID: GKI: set vfs-only exports into their own namespace ... We have namespaces, so use them for all vfs-exported namespaces so that filesystems can use them, but not anything else. Some in-kernel drivers that do direct filesystem accesses (because they serve up files) are also allowed access to these symbols to keep 'make allmodconfig' builds working properly, but it is not needed for Android kernel images. Bug: 157965270 Bug: 210074446 Cc: Matthias Maennich <maennich@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Iaf6140baf3a18a516ab2d5c3966235c42f3f70de	2022-04-07 15:14:24 +02:00
Greg Kroah-Hartman	a9b70a2132	Revert "ANDROID: Revert "Merge 582cd91f69 ("Merge tag 'for-5.12/block-2021-02-17' of git://git.kernel.dk/linux-block") into android-mainline"" ... This reverts commit 47c1260ea8. Bug: 181742070 Cc: Eric Biggers <ebiggers@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I672a5db3738116de133a84e4bcecd8c18ff689e8	2021-03-05 06:43:17 +01:00
Greg Kroah-Hartman	47c1260ea8	ANDROID: Revert "Merge 582cd91f69 ("Merge tag 'for-5.12/block-2021-02-17' of git://git.kernel.dk/linux-block") into android-mainline" ... This reverts commit f858d3a02f ("Merge 582cd91f69 ("Merge tag 'for-5.12/block-2021-02-17' of git://git.kernel.dk/linux-block") into android-mainline") as it is causing boot problems with md devices in the android build systems. Reverting this should allow us to continue on with the merges of other non-block issues, in order to be able to focus on tracking this issue down at a later time. Fixes: f858d3a02f ("Merge 582cd91f69 ("Merge tag 'for-5.12/block-2021-02-17' of git://git.kernel.dk/linux-block") into android-mainline") Bug: 181742070 Cc: Eric Biggers <ebiggers@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I03cc2f86827f2d18db88fc68a4128747430f40d4	2021-03-03 10:37:27 +01:00
Linus Torvalds	582cd91f69	Merge tag 'for-5.12/block-2021-02-17' of git://git.kernel.dk/linux-block ... Pull core block updates from Jens Axboe: "Another nice round of removing more code than what is added, mostly due to Christoph's relentless pursuit of tech debt removal/cleanups. This pull request contains: - Two series of BFQ improvements (Paolo, Jan, Jia) - Block iov_iter improvements (Pavel) - bsg error path fix (Pan) - blk-mq scheduler improvements (Jan) - -EBUSY discard fix (Jan) - bvec allocation improvements (Ming, Christoph) - bio allocation and init improvements (Christoph) - Store bdev pointer in bio instead of gendisk + partno (Christoph) - Block trace point cleanups (Christoph) - hard read-only vs read-only split (Christoph) - Block based swap cleanups (Christoph) - Zoned write granularity support (Damien) - Various fixes/tweaks (Chunguang, Guoqing, Lei, Lukas, Huhai)" * tag 'for-5.12/block-2021-02-17' of git://git.kernel.dk/linux-block: (104 commits) mm: simplify swapdev_block sd_zbc: clear zone resources for non-zoned case block: introduce blk_queue_clear_zone_settings() zonefs: use zone write granularity as block size block: introduce zone_write_granularity limit block: use blk_queue_set_zoned in add_partition() nullb: use blk_queue_set_zoned() to setup zoned devices nvme: cleanup zone information initialization block: document zone_append_max_bytes attribute block: use bi_max_vecs to find the bvec pool md/raid10: remove dead code in reshape_request block: mark the bio as cloned in bio_iov_bvec_set block: set BIO_NO_PAGE_REF in bio_iov_bvec_set block: remove a layer of indentation in bio_iov_iter_get_pages block: turn the nr_iovecs argument to bio_alloc* into an unsigned short block: remove the 1 and 4 vec bvec_slabs entries block: streamline bvec_alloc block: factor out a bvec_alloc_gfp helper block: move struct biovec_slab to bio.c block: reuse BIO_INLINE_VECS for integrity bvecs ...	2021-02-21 11:02:48 -08:00
Al Viro	b964bf53e5	teach sendfile(2) to handle send-to-pipe directly ... no point going through the intermediate pipe Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>	2021-01-25 23:29:36 -05:00
Al Viro	faa97c48c3	take the guts of file-to-pipe splice into a helper function ... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>	2021-01-25 23:29:33 -05:00
Al Viro	313d64a35d	do_splice_to(): move the logics for limiting the read length in ... Both callers have the identical logics limiting the amount of data we try to read into pipe - no more than would fit into that pipe. Move that into do_splice_to() itself. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>	2021-01-25 23:28:41 -05:00
Pavel Begunkov	0f1d344feb	splice: don't generate zero-len segement bvecs ... iter_file_splice_write() may spawn bvec segments with zero-length. In preparation for prohibiting them, filter out by hand at splice level. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Reviewed-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>	2021-01-25 08:58:24 -07:00
Linus Torvalds	af0041875c	Merge tag 'io_uring-5.10-2020-10-24' of git://git.kernel.dk/linux-block ... Pull io_uring fixes from Jens Axboe: - fsize was missed in previous unification of work flags - Few fixes cleaning up the flags unification creds cases (Pavel) - Fix NUMA affinities for completely unplugged/replugged node for io-wq - Two fallout fixes from the set_fs changes. One local to io_uring, one for the splice entry point that io_uring uses. - Linked timeout fixes (Pavel) - Removal of ->flush() ->files work-around that we don't need anymore with referenced files (Pavel) - Various cleanups (Pavel) * tag 'io_uring-5.10-2020-10-24' of git://git.kernel.dk/linux-block: splice: change exported internal do_splice() helper to take kernel offset io_uring: make loop_rw_iter() use original user supplied pointers io_uring: remove req cancel in ->flush() io-wq: re-set NUMA node affinities if CPUs come online io_uring: don't reuse linked_timeout io_uring: unify fsize with def->work_flags io_uring: fix racy REQ_F_LINK_TIMEOUT clearing io_uring: do poll's hash_node init in common code io_uring: inline io_poll_task_handler() io_uring: remove extra ->file check in poll prep io_uring: make cached_cq_overflow non atomic_t io_uring: inline io_fail_links() io_uring: kill ref get/drop in personality init io_uring: flags-based creds init in queue	2020-10-24 12:40:18 -07:00
Jens Axboe	ee6e00c868	splice: change exported internal do_splice() helper to take kernel offset ... With the set_fs change, we can no longer rely on copy_{to,from}_user() accepting a kernel pointer, and it was bad form to do so anyway. Clean this up and change the internal helper that io_uring uses to deal with kernel pointers instead. This puts the offset copy in/out in __do_splice() instead, which just calls the same helper. Signed-off-by: Jens Axboe <axboe@kernel.dk>	2020-10-22 14:15:51 -06:00
Linus Torvalds	f56e65dff6	Merge branch 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs ... Pull initial set_fs() removal from Al Viro: "Christoph's set_fs base series + fixups" * 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fs: Allow a NULL pos pointer to __kernel_read fs: Allow a NULL pos pointer to __kernel_write powerpc: remove address space overrides using set_fs() powerpc: use non-set_fs based maccess routines x86: remove address space overrides using set_fs() x86: make TASK_SIZE_MAX usable from assembly code x86: move PAGE_OFFSET, TASK_SIZE & friends to page_{32,64}_types.h lkdtm: remove set_fs-based tests test_bitmap: remove user bitmap tests uaccess: add infrastructure for kernel builds with set_fs() fs: don't allow splice read/write without explicit ops fs: don't allow kernel reads and writes without iter ops sysctl: Convert to iter interfaces proc: add a read_iter method to proc proc_ops proc: cleanup the compat vs no compat file ops proc: remove a level of indentation in proc_get_inode	2020-10-22 09:59:21 -07:00
Linus Torvalds	85ed13e78d	Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs ... Pull compat iovec cleanups from Al Viro: "Christoph's series around import_iovec() and compat variant thereof" * 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: security/keys: remove compat_keyctl_instantiate_key_iov mm: remove compat_process_vm_{readv,writev} fs: remove compat_sys_vmsplice fs: remove the compat readv/writev syscalls fs: remove various compat readv/writev helpers iov_iter: transparently handle compat iovecs in import_iovec iov_iter: refactor rw_copy_check_uvector and import_iovec iov_iter: move rw_copy_check_uvector() into lib/iov_iter.c compat.h: fix a spelling error in <linux/compat.h>	2020-10-12 16:35:51 -07:00
Linus Torvalds	d1a819a2ec	splice: teach splice pipe reading about empty pipe buffers ... Tetsuo Handa reports that splice() can return 0 before the real EOF, if the data in the splice source pipe is an empty pipe buffer. That empty pipe buffer case doesn't happen in any normal situation, but you can trigger it by doing a write to a pipe that fails due to a page fault. Tetsuo has a test-case to show the behavior: #define _GNU_SOURCE #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <unistd.h> int main(int argc, char *argv[]) { const int fd = open("/tmp/testfile", O_WRONLY | O_CREAT, 0600); int pipe_fd[2] = { -1, -1 }; pipe(pipe_fd); write(pipe_fd[1], NULL, 4096); /* This splice() should wait unless interrupted. */ return !splice(pipe_fd[0], NULL, fd, NULL, 65536, 0); } which results in write(5, NULL, 4096) = -1 EFAULT (Bad address) splice(4, NULL, 3, NULL, 65536, 0) = 0 and this can confuse splice() users into believing they have hit EOF prematurely. The issue was introduced when the pipe write code started pre-allocating the pipe buffers before copying data from user space. This is modified verion of Tetsuo's original patch. Fixes: a194dfe6e6 ("pipe: Rearrange sequence in pipe_write() to preallocate slot") Link:https://lore.kernel.org/linux-fsdevel/20201005121339.4063-1-penguin-kernel@I-love.SAKURA.ne.jp/ Reported-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Acked-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>	2020-10-06 10:27:22 -07:00
Christoph Hellwig	598b3cec83	fs: remove compat_sys_vmsplice ... Now that import_iovec handles compat iovecs, the native vmsplice syscall can be used for the compat case as well. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>	2020-10-03 00:02:15 -04:00
Christoph Hellwig	89cd35c58b	iov_iter: transparently handle compat iovecs in import_iovec ... Use in compat_syscall to import either native or the compat iovecs, and remove the now superflous compat_import_iovec. This removes the need for special compat logic in most callers, and the remaining ones can still be simplified by using __import_iovec with a bool compat parameter. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>	2020-10-03 00:02:13 -04:00
Linus Torvalds	472e5b056f	pipe: remove pipe_wait() and fix wakeup race with splice ... The pipe splice code still used the old model of waiting for pipe IO by using a non-specific "pipe_wait()" that waited for any pipe event to happen, which depended on all pipe IO being entirely serialized by the pipe lock. So by checking the state you were waiting for, and then adding yourself to the wait queue before dropping the lock, you were guaranteed to see all the wakeups. Strictly speaking, the actual wakeups were not done under the lock, but the pipe_wait() model still worked, because since the waiter held the lock when checking whether it should sleep, it would always see the current state, and the wakeup was always done after updating the state. However, commit 0ddad21d3e ("pipe: use exclusive waits when reading or writing") split the single wait-queue into two, and in the process also made the "wait for event" code wait for _two_ wait queues, and that then showed a race with the wakers that were not serialized by the pipe lock. It's only splice that used that "pipe_wait()" model, so the problem wasn't obvious, but Josef Bacik reports: "I hit a hang with fstest btrfs/187, which does a btrfs send into /dev/null. This works by creating a pipe, the write side is given to the kernel to write into, and the read side is handed to a thread that splices into a file, in this case /dev/null. The box that was hung had the write side stuck here [pipe_write] and the read side stuck here [splice_from_pipe_next -> pipe_wait]. [ more details about pipe_wait() scenario ] The problem is we're doing the prepare_to_wait, which sets our state each time, however we can be woken up either with reads or writes. In the case above we race with the WRITER waking us up, and re-set our state to INTERRUPTIBLE, and thus never break out of schedule" Josef had a patch that avoided the issue in pipe_wait() by just making it set the state only once, but the deeper problem is that pipe_wait() depends on a level of synchonization by the pipe mutex that it really shouldn't. And the whole "wait for any pipe state change" model really isn't very good to begin with. So rather than trying to work around things in pipe_wait(), remove that legacy model of "wait for arbitrary pipe event" entirely, and actually create functions that wait for the pipe actually being readable or writable, and can do so without depending on the pipe lock serializing everything. Fixes: 0ddad21d3e ("pipe: use exclusive waits when reading or writing") Link: https://lore.kernel.org/linux-fsdevel/bfa88b5ad6f069b2b679316b9e495a970130416c.1601567868.git.josef@toxicpanda.com/ Reported-by: Josef Bacik <josef@toxicpanda.com> Reviewed-and-tested-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>	2020-10-01 19:14:36 -07:00
Christoph Hellwig	36e2c7421f	fs: don't allow splice read/write without explicit ops ... default_file_splice_write is the last piece of generic code that uses set_fs to make the uaccess routines operate on kernel pointers. It implements a "fallback loop" for splicing from files that do not actually provide a proper splice_read method. The usual file systems and other high bandwidth instances all provide a ->splice_read, so this just removes support for various device drivers and procfs/debugfs files. If splice support for any of those turns out to be important it can be added back by switching them to the iter ops and using generic_file_splice_read. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>	2020-09-08 22:21:32 -04:00
Linus Torvalds	6c32978414	Merge tag 'notifications-20200601' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs ... Pull notification queue from David Howells: "This adds a general notification queue concept and adds an event source for keys/keyrings, such as linking and unlinking keys and changing their attributes. Thanks to Debarshi Ray, we do have a pull request to use this to fix a problem with gnome-online-accounts - as mentioned last time: https://gitlab.gnome.org/GNOME/gnome-online-accounts/merge_requests/47 Without this, g-o-a has to constantly poll a keyring-based kerberos cache to find out if kinit has changed anything. [ There are other notification pending: mount/sb fsinfo notifications for libmount that Karel Zak and Ian Kent have been working on, and Christian Brauner would like to use them in lxc, but let's see how this one works first ] LSM hooks are included: - A set of hooks are provided that allow an LSM to rule on whether or not a watch may be set. Each of these hooks takes a different "watched object" parameter, so they're not really shareable. The LSM should use current's credentials. [Wanted by SELinux & Smack] - A hook is provided to allow an LSM to rule on whether or not a particular message may be posted to a particular queue. This is given the credentials from the event generator (which may be the system) and the watch setter. [Wanted by Smack] I've provided SELinux and Smack with implementations of some of these hooks. WHY === Key/keyring notifications are desirable because if you have your kerberos tickets in a file/directory, your Gnome desktop will monitor that using something like fanotify and tell you if your credentials cache changes. However, we also have the ability to cache your kerberos tickets in the session, user or persistent keyring so that it isn't left around on disk across a reboot or logout. Keyrings, however, cannot currently be monitored asynchronously, so the desktop has to poll for it - not so good on a laptop. This facility will allow the desktop to avoid the need to poll. DESIGN DECISIONS ================ - The notification queue is built on top of a standard pipe. Messages are effectively spliced in. The pipe is opened with a special flag: pipe2(fds, O_NOTIFICATION_PIPE); The special flag has the same value as O_EXCL (which doesn't seem like it will ever be applicable in this context)[?]. It is given up front to make it a lot easier to prohibit splice&co from accessing the pipe. [?] Should this be done some other way? I'd rather not use up a new O_* flag if I can avoid it - should I add a pipe3() system call instead? The pipe is then configured:: ioctl(fds[1], IOC_WATCH_QUEUE_SET_SIZE, queue_depth); ioctl(fds[1], IOC_WATCH_QUEUE_SET_FILTER, &filter); Messages are then read out of the pipe using read(). - It should be possible to allow write() to insert data into the notification pipes too, but this is currently disabled as the kernel has to be able to insert messages into the pipe *without* holding pipe->mutex and the code to make this work needs careful auditing. - sendfile(), splice() and vmsplice() are disabled on notification pipes because of the pipe->mutex issue and also because they sometimes want to revert what they just did - but one or more notification messages might've been interleaved in the ring. - The kernel inserts messages with the wait queue spinlock held. This means that pipe_read() and pipe_write() have to take the spinlock to update the queue pointers. - Records in the buffer are binary, typed and have a length so that they can be of varying size. This allows multiple heterogeneous sources to share a common buffer; there are 16 million types available, of which I've used just a few, so there is scope for others to be used. Tags may be specified when a watchpoint is created to help distinguish the sources. - Records are filterable as types have up to 256 subtypes that can be individually filtered. Other filtration is also available. - Notification pipes don't interfere with each other; each may be bound to a different set of watches. Any particular notification will be copied to all the queues that are currently watching for it - and only those that are watching for it. - When recording a notification, the kernel will not sleep, but will rather mark a queue as having lost a message if there's insufficient space. read() will fabricate a loss notification message at an appropriate point later. - The notification pipe is created and then watchpoints are attached to it, using one of: keyctl_watch_key(KEY_SPEC_SESSION_KEYRING, fds[1], 0x01); watch_mount(AT_FDCWD, "/", 0, fd, 0x02); watch_sb(AT_FDCWD, "/mnt", 0, fd, 0x03); where in both cases, fd indicates the queue and the number after is a tag between 0 and 255. - Watches are removed if either the notification pipe is destroyed or the watched object is destroyed. In the latter case, a message will be generated indicating the enforced watch removal. Things I want to avoid: - Introducing features that make the core VFS dependent on the network stack or networking namespaces (ie. usage of netlink). - Dumping all this stuff into dmesg and having a daemon that sits there parsing the output and distributing it as this then puts the responsibility for security into userspace and makes handling namespaces tricky. Further, dmesg might not exist or might be inaccessible inside a container. - Letting users see events they shouldn't be able to see. TESTING AND MANPAGES ==================== - The keyutils tree has a pipe-watch branch that has keyctl commands for making use of notifications. Proposed manual pages can also be found on this branch, though a couple of them really need to go to the main manpages repository instead. If the kernel supports the watching of keys, then running "make test" on that branch will cause the testing infrastructure to spawn a monitoring process on the side that monitors a notifications pipe for all the key/keyring changes induced by the tests and they'll all be checked off to make sure they happened. https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/keyutils.git/log/?h=pipe-watch - A test program is provided (samples/watch_queue/watch_test) that can be used to monitor for keyrings, mount and superblock events. Information on the notifications is simply logged to stdout" * tag 'notifications-20200601' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: smack: Implement the watch_key and post_notification hooks selinux: Implement the watch_key security hook keys: Make the KEY_NEED_* perms an enum rather than a mask pipe: Add notification lossage handling pipe: Allow buffers to be marked read-whole-or-error for notifications Add sample notification program watch_queue: Add a key/keyring notification facility security: Add hooks to rule on setting a watch pipe: Add general notification queue support pipe: Add O_NOTIFICATION_PIPE security: Add a hook for the point of notification insertion uapi: General notification queue definitions	2020-06-13 09:56:21 -07:00
Linus Torvalds	ae03c53d00	Merge branch 'work.splice' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs ... Pull splice updates from Al Viro: "Christoph's assorted splice cleanups" * 'work.splice' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fs: rename pipe_buf ->steal to ->try_steal fs: make the pipe_buf_operations ->confirm operation optional fs: make the pipe_buf_operations ->steal operation optional trace: remove tracing_pipe_buf_ops pipe: merge anon_pipe_buf*_ops fs: simplify do_splice_from fs: simplify do_splice_to	2020-06-03 15:52:19 -07:00
Linus Torvalds	1ee08de1e2	Merge tag 'for-5.8/io_uring-2020-06-01' of git://git.kernel.dk/linux-block ... Pull io_uring updates from Jens Axboe: "A relatively quiet round, mostly just fixes and code improvements. In particular: - Make statx just use the generic statx handler, instead of open coding it. We don't need that anymore, as we always call it async safe (Bijan) - Enable closing of the ring itself. Also fixes O_PATH closure (me) - Properly name completion members (me) - Batch reap of dead file registrations (me) - Allow IORING_OP_POLL with double waitqueues (me) - Add tee(2) support (Pavel) - Remove double off read (Pavel) - Fix overflow cancellations (Pavel) - Improve CQ timeouts (Pavel) - Async defer drain fixes (Pavel) - Add support for enabling/disabling notifications on a registered eventfd (Stefano) - Remove dead state parameter (Xiaoguang) - Disable SQPOLL submit on dying ctx (Xiaoguang) - Various code cleanups" * tag 'for-5.8/io_uring-2020-06-01' of git://git.kernel.dk/linux-block: (29 commits) io_uring: fix overflowed reqs cancellation io_uring: off timeouts based only on completions io_uring: move timeouts flushing to a helper statx: hide interfaces no longer used by io_uring io_uring: call statx directly statx: allow system call to be invoked from io_uring io_uring: add io_statx structure io_uring: get rid of manual punting in io_close io_uring: separate DRAIN flushing into a cold path io_uring: don't re-read sqe->off in timeout_prep() io_uring: simplify io_timeout locking io_uring: fix flush req->refs underflow io_uring: don't submit sqes when ctx->refs is dying io_uring: async task poll trigger cleanup io_uring: add tee(2) support splice: export do_tee() io_uring: don't repeat valid flag list io_uring: rename io_file_put() io_uring: remove req->needs_fixed_files io_uring: cleanup io_poll_remove_one() logic ...	2020-06-02 15:42:50 -07:00
Tetsuo Handa	566d136289	pipe: Fix pipe_full() test in opipe_prep(). ... syzbot is reporting that splice()ing from non-empty read side to already-full write side causes unkillable task, for opipe_prep() is by error not inverting pipe_full() test. CPU: 0 PID: 9460 Comm: syz-executor.5 Not tainted 5.6.0-rc3-next-20200228-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rol32 include/linux/bitops.h:105 [inline] RIP: 0010:iterate_chain_key kernel/locking/lockdep.c:369 [inline] RIP: 0010:__lock_acquire+0x6a3/0x5270 kernel/locking/lockdep.c:4178 Call Trace: lock_acquire+0x197/0x420 kernel/locking/lockdep.c:4720 __mutex_lock_common kernel/locking/mutex.c:956 [inline] __mutex_lock+0x156/0x13c0 kernel/locking/mutex.c:1103 pipe_lock_nested fs/pipe.c:66 [inline] pipe_double_lock+0x1a0/0x1e0 fs/pipe.c:104 splice_pipe_to_pipe fs/splice.c:1562 [inline] do_splice+0x35f/0x1520 fs/splice.c:1141 __do_sys_splice fs/splice.c:1447 [inline] __se_sys_splice fs/splice.c:1427 [inline] __x64_sys_splice+0x2b5/0x320 fs/splice.c:1427 do_syscall_64+0xf6/0x790 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xbe Reported-by: syzbot+b48daca8639150bc5e73@syzkaller.appspotmail.com Link: https://syzkaller.appspot.com/bug?id=9386d051e11e09973d5a4cf79af5e8cedf79386d Fixes: 8cefc107ca ("pipe: Use head and tail pointers for the ring, not cursor and length") Cc: stable@vger.kernel.org # 5.5+ Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>	2020-05-20 10:54:29 -07:00
Christoph Hellwig	c928f642c2	fs: rename pipe_buf ->steal to ->try_steal ... And replace the arcane return value convention with a simple bool where true means success and false means failure. [AV: braino fix folded in] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>	2020-05-20 12:14:10 -04:00
Christoph Hellwig	b8d9e7f241	fs: make the pipe_buf_operations ->confirm operation optional ... Just return 0 for success if it is not present. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>	2020-05-20 12:11:26 -04:00
Christoph Hellwig	76887c2567	fs: make the pipe_buf_operations ->steal operation optional ... Just return 1 for failure if it is not present. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>	2020-05-20 12:11:26 -04:00
Christoph Hellwig	f6dd975583	pipe: merge anon_pipe_buf*_ops ... All the op vectors are exactly the same, they are just used to encode packet or nomerge behavior. There already is a flag for the packet behavior, so just add a new one to allow for merging. Inverting it vs the previous nomerge special casing actually allows for much nicer code. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>	2020-05-20 12:11:26 -04:00
Christoph Hellwig	00c285d0d0	fs: simplify do_splice_from ... No need for a local function pointer when we can trivial branch on the ->splice_write presence. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>	2020-05-20 12:11:26 -04:00
Christoph Hellwig	2bc010600d	fs: simplify do_splice_to ... No need for a local function pointer when we can trivial branch on the ->splice_read presence. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>	2020-05-20 12:11:25 -04:00
David Howells	c73be61ced	pipe: Add general notification queue support ... Make it possible to have a general notification queue built on top of a standard pipe. Notifications are 'spliced' into the pipe and then read out. splice(), vmsplice() and sendfile() are forbidden on pipes used for notifications as post_one_notification() cannot take pipe->mutex. This means that notifications could be posted in between individual pipe buffers, making iov_iter_revert() difficult to effect. The way the notification queue is used is: (1) An application opens a pipe with a special flag and indicates the number of messages it wishes to be able to queue at once (this can only be set once): pipe2(fds, O_NOTIFICATION_PIPE); ioctl(fds[0], IOC_WATCH_QUEUE_SET_SIZE, queue_depth); (2) The application then uses poll() and read() as normal to extract data from the pipe. read() will return multiple notifications if the buffer is big enough, but it will not split a notification across buffers - rather it will return a short read or EMSGSIZE. Notification messages include a length in the header so that the caller can split them up. Each message has a header that describes it: struct watch_notification { __u32 type:24; __u32 subtype:8; __u32 info; }; The type indicates the source (eg. mount tree changes, superblock events, keyring changes, block layer events) and the subtype indicates the event type (eg. mount, unmount; EIO, EDQUOT; link, unlink). The info field indicates a number of things, including the entry length, an ID assigned to a watchpoint contributing to this buffer and type-specific flags. Supplementary data, such as the key ID that generated an event, can be attached in additional slots. The maximum message size is 127 bytes. Messages may not be padded or aligned, so there is no guarantee, for example, that the notification type will be on a 4-byte bounary. Signed-off-by: David Howells <dhowells@redhat.com>	2020-05-19 15:08:24 +01:00
Pavel Begunkov	9dafdfc2f0	splice: export do_tee() ... export do_tee() for use in io_uring Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>	2020-05-17 14:10:07 -06:00
Pavel Begunkov	90da2e3f25	splice: move f_mode checks to do_{splice,tee}() ... do_splice() is used by io_uring, as will be do_tee(). Move f_mode checks from sys_{splice,tee}() to do_{splice,tee}(), so they're enforced for io_uring as well. Fixes: 7d67af2c01 ("io_uring: add splice(2) support") Reported-by: Jann Horn <jannh@google.com> Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>	2020-05-07 09:45:07 -06:00
Pavel Begunkov	444ebb5768	splice: make do_splice public ... Make do_splice(), so other kernel parts can reuse it Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>	2020-03-02 14:04:31 -07:00
Linus Torvalds	0ddad21d3e	pipe: use exclusive waits when reading or writing ... This makes the pipe code use separate wait-queues and exclusive waiting for readers and writers, avoiding a nasty thundering herd problem when there are lots of readers waiting for data on a pipe (or, less commonly, lots of writers waiting for a pipe to have space). While this isn't a common occurrence in the traditional "use a pipe as a data transport" case, where you typically only have a single reader and a single writer process, there is one common special case: using a pipe as a source of "locking tokens" rather than for data communication. In particular, the GNU make jobserver code ends up using a pipe as a way to limit parallelism, where each job consumes a token by reading a byte from the jobserver pipe, and releases the token by writing a byte back to the pipe. This pattern is fairly traditional on Unix, and works very well, but will waste a lot of time waking up a lot of processes when only a single reader needs to be woken up when a writer releases a new token. A simplified test-case of just this pipe interaction is to create 64 processes, and then pass a single token around between them (this test-case also intentionally passes another token that gets ignored to test the "wake up next" logic too, in case anybody wonders about it): #include <unistd.h> int main(int argc, char **argv) { int fd[2], counters[2]; pipe(fd); counters[0] = 0; counters[1] = -1; write(fd[1], counters, sizeof(counters)); /* 64 processes */ fork(); fork(); fork(); fork(); fork(); fork(); do { int i; read(fd[0], &i, sizeof(i)); if (i < 0) continue; counters[0] = i+1; write(fd[1], counters, (1+(i & 1)) *sizeof(int)); } while (counters[0] < 1000000); return 0; } and in a perfect world, passing that token around should only cause one context switch per transfer, when the writer of a token causes a directed wakeup of just a single reader. But with the "writer wakes all readers" model we traditionally had, on my test box the above case causes more than an order of magnitude more scheduling: instead of the expected ~1M context switches, "perf stat" shows 231,852.37 msec task-clock # 15.857 CPUs utilized 11,250,961 context-switches # 0.049 M/sec 616,304 cpu-migrations # 0.003 M/sec 1,648 page-faults # 0.007 K/sec 1,097,903,998,514 cycles # 4.735 GHz 120,781,778,352 instructions # 0.11 insn per cycle 27,997,056,043 branches # 120.754 M/sec 283,581,233 branch-misses # 1.01% of all branches 14.621273891 seconds time elapsed 0.018243000 seconds user 3.611468000 seconds sys before this commit. After this commit, I get 5,229.55 msec task-clock # 3.072 CPUs utilized 1,212,233 context-switches # 0.232 M/sec 103,951 cpu-migrations # 0.020 M/sec 1,328 page-faults # 0.254 K/sec 21,307,456,166 cycles # 4.074 GHz 12,947,819,999 instructions # 0.61 insn per cycle 2,881,985,678 branches # 551.096 M/sec 64,267,015 branch-misses # 2.23% of all branches 1.702148350 seconds time elapsed 0.004868000 seconds user 0.110786000 seconds sys instead. Much better. [ Note! This kernel improvement seems to be very good at triggering a race condition in the make jobserver (in GNU make 4.2.1) for me. It's a long known bug that was fixed back in June 2017 by GNU make commit b552b0525198 ("[SV 51159] Use a non-blocking read with pselect to avoid hangs."). But there wasn't a new release of GNU make until 4.3 on Jan 19 2020, so a number of distributions may still have the buggy version. Some have backported the fix to their 4.2.1 release, though, and even without the fix it's quite timing-dependent whether the bug actually is hit. ] Josh Triplett says: "I've been hammering on your pipe fix patch (switching to exclusive wait queues) for a month or so, on several different systems, and I've run into no issues with it. The patch *substantially* improves parallel build times on large (~100 CPU) systems, both with parallel make and with other things that use make's pipe-based jobserver. All current distributions (including stable and long-term stable distributions) have versions of GNU make that no longer have the jobserver bug" Tested-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>	2020-02-08 11:39:19 -08:00
Linus Torvalds	a28c8b9db8	pipe: remove 'waiting_writers' merging logic ... This code is ancient, and goes back to when we only had a single page for the pipe buffers. The exact history is hidden in the mists of time (ie "before git", and in fact predates the BK repository too). At that long-ago point in time, it actually helped to try to merge big back-and-forth pipe reads and writes, and not limit pipe reads to the single pipe buffer in length just because that was all we had at a time. However, since then we've expanded the pipe buffers to multiple pages, and this logic really doesn't seem to make sense. And a lot of it is somewhat questionable (ie "hmm, the user asked for a non-blocking read, but we see that there's a writer pending, so let's wait anyway to get the extra data that the writer will have"). But more importantly, it makes the "go to sleep" logic much less obvious, and considering the wakeup issues we've had, I want to make for less of those kinds of things. Cc: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>	2019-12-07 13:21:01 -08:00
Linus Torvalds	ec057595cb	pipe: fix incorrect caching of pipe state over pipe_wait() ... Similarly to commit 8f868d68d3 ("pipe: Fix missing mask update after pipe_wait()") this fixes a case where the pipe rewrite ended up caching the pipe state incorrectly over a pipe lock drop event. It wasn't quite as obvious, because you needed to splice data from a pipe to a file, which is a fairly unusual operation, but it's completely wrong. Make sure we load the pipe head/tail/size information only after we've waited for there to be data in the pipe. While in that file, also make one of the splice helper functions use the canonical arghument order for pipe_empty(). That's syntactic - pipe emptiness is just that head and tail are equal, and thus mixing up head and tail doesn't really matter. It's still wrong, though. Reported-by: David Sterba <dsterba@suse.cz> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>	2019-12-06 12:40:35 -08:00
Linus Torvalds	6a965666b7	Merge tag 'notifications-pipe-prep-20191115' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs ... Pull pipe rework from David Howells: "This is my set of preparatory patches for building a general notification queue on top of pipes. It makes a number of significant changes: - It removes the nr_exclusive argument from __wake_up_sync_key() as this is always 1. This prepares for the next step: - Adds wake_up_interruptible_sync_poll_locked() so that poll can be woken up from a function that's holding the poll waitqueue spinlock. - Change the pipe buffer ring to be managed in terms of unbounded head and tail indices rather than bounded index and length. This means that reading the pipe only needs to modify one index, not two. - A selection of helper functions are provided to query the state of the pipe buffer, plus a couple to apply updates to the pipe indices. - The pipe ring is allowed to have kernel-reserved slots. This allows many notification messages to be spliced in by the kernel without allowing userspace to pin too many pages if it writes to the same pipe. - Advance the head and tail indices inside the pipe waitqueue lock and use wake_up_interruptible_sync_poll_locked() to poke poll without having to take the lock twice. - Rearrange pipe_write() to preallocate the buffer it is going to write into and then drop the spinlock. This allows kernel notifications to then be added the ring whilst it is filling the buffer it allocated. The read side is stalled because the pipe mutex is still held. - Don't wake up readers on a pipe if there was already data in it when we added more. - Don't wake up writers on a pipe if the ring wasn't full before we removed a buffer" * tag 'notifications-pipe-prep-20191115' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: pipe: Remove sync on wake_ups pipe: Increase the writer-wakeup threshold to reduce context-switch count pipe: Check for ring full inside of the spinlock in pipe_write() pipe: Remove redundant wakeup from pipe_write() pipe: Rearrange sequence in pipe_write() to preallocate slot pipe: Conditionalise wakeup in pipe_read() pipe: Advance tail pointer inside of wait spinlock in pipe_read() pipe: Allow pipes to have kernel-reserved slots pipe: Use head and tail pointers for the ring, not cursor and length Add wake_up_interruptible_sync_poll_locked() Remove the nr_exclusive argument from __wake_up_sync_key() pipe: Reduce #inclusion of pipe_fs_i.h	2019-11-30 14:12:13 -08:00
David Howells	6718b6f855	pipe: Allow pipes to have kernel-reserved slots ... Split pipe->ring_size into two numbers: (1) pipe->ring_size - indicates the hard size of the pipe ring. (2) pipe->max_usage - indicates the maximum number of pipe ring slots that userspace orchestrated events can fill. This allows for a pipe that is both writable by the general kernel notification facility and by userspace, allowing plenty of ring space for notifications to be added whilst preventing userspace from being able to pin too much unswappable kernel space. Signed-off-by: David Howells <dhowells@redhat.com>	2019-11-15 16:22:54 +00:00
David Howells	8cefc107ca	pipe: Use head and tail pointers for the ring, not cursor and length ... Convert pipes to use head and tail pointers for the buffer ring rather than pointer and length as the latter requires two atomic ops to update (or a combined op) whereas the former only requires one. (1) The head pointer is the point at which production occurs and points to the slot in which the next buffer will be placed. This is equivalent to pipe->curbuf + pipe->nrbufs. The head pointer belongs to the write-side. (2) The tail pointer is the point at which consumption occurs. It points to the next slot to be consumed. This is equivalent to pipe->curbuf. The tail pointer belongs to the read-side. (3) head and tail are allowed to run to UINT_MAX and wrap naturally. They are only masked off when the array is being accessed, e.g.: pipe->bufs[head & mask] This means that it is not necessary to have a dead slot in the ring as head == tail isn't ambiguous. (4) The ring is empty if "head == tail". A helper, pipe_empty(), is provided for this. (5) The occupancy of the ring is "head - tail". A helper, pipe_occupancy(), is provided for this. (6) The number of free slots in the ring is "pipe->ring_size - occupancy". A helper, pipe_space_for_user() is provided to indicate how many slots userspace may use. (7) The ring is full if "head - tail >= pipe->ring_size". A helper, pipe_full(), is provided for this. Signed-off-by: David Howells <dhowells@redhat.com>	2019-10-31 15:12:34 +00:00
Darrick J. Wong	3253d9d093	splice: only read in as much information as there is pipe buffer space ... Andreas Grünbacher reports that on the two filesystems that support iomap directio, it's possible for splice() to return -EAGAIN (instead of a short splice) if the pipe being written to has less space available in its pipe buffers than the length supplied by the calling process. Months ago we fixed splice_direct_to_actor to clamp the length of the read request to the size of the splice pipe. Do the same to do_splice. Fixes: 1761444557 ("splice: don't read more than available pipe space") Reported-by: syzbot+3c01db6025f26530cf8d@syzkaller.appspotmail.com Reported-by: Andreas Grünbacher <andreas.gruenbacher@gmail.com> Reviewed-by: Andreas Grünbacher <andreas.gruenbacher@gmail.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>	2019-10-15 08:44:32 -07:00
Jens Axboe	87e5e6dab6	uio: make import_iovec()/compat_import_iovec() return bytes on success ... Currently these functions return < 0 on error, and 0 for success. Change that so that we return < 0 on error, but number of bytes for success. Some callers already treat the return value that way, others need a slight tweak. Signed-off-by: Jens Axboe <axboe@kernel.dk>	2019-05-31 15:30:03 -06:00
Thomas Gleixner	457c899653	treewide: Add SPDX license identifier for missed files ... Add SPDX license identifiers to all files which: - Have no license information of any form - Have EXPORT_.*_SYMBOL_GPL inside which was used in the initial scan/conversion to ignore the file These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>	2019-05-21 10:50:45 +02:00
Linus Torvalds	e9e1a2e7b4	Merge tag 'trace-v5.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace ... Pull tracing fixes from Steven Rostedt: "Three tracing fixes: - Use "nosteal" for ring buffer splice pages - Memory leak fix in error path of trace_pid_write() - Fix preempt_enable_no_resched() (use preempt_enable()) in ring buffer code" * tag 'trace-v5.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: trace: Fix preempt_enable_no_resched() abuse tracing: Fix a memory leak by early error exit in trace_pid_write() tracing: Fix buffer_ref pipe ops	2019-04-26 11:09:55 -07:00
Jann Horn	b987222654	tracing: Fix buffer_ref pipe ops ... This fixes multiple issues in buffer_pipe_buf_ops: - The ->steal() handler must not return zero unless the pipe buffer has the only reference to the page. But generic_pipe_buf_steal() assumes that every reference to the pipe is tracked by the page's refcount, which isn't true for these buffers - buffer_pipe_buf_get(), which duplicates a buffer, doesn't touch the page's refcount. Fix it by using generic_pipe_buf_nosteal(), which refuses every attempted theft. It should be easy to actually support ->steal, but the only current users of pipe_buf_steal() are the virtio console and FUSE, and they also only use it as an optimization. So it's probably not worth the effort. - The ->get() and ->release() handlers can be invoked concurrently on pipe buffers backed by the same struct buffer_ref. Make them safe against concurrency by using refcount_t. - The pointers stored in ->private were only zeroed out when the last reference to the buffer_ref was dropped. As far as I know, this shouldn't be necessary anyway, but if we do it, let's always do it. Link: http://lkml.kernel.org/r/20190404215925.253531-1-jannh@google.com Cc: Ingo Molnar <mingo@redhat.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: stable@vger.kernel.org Fixes: 73a757e631 ("ring-buffer: Return reader page back into existing ring buffer") Signed-off-by: Jann Horn <jannh@google.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>	2019-04-26 11:44:39 -04:00
Linus Torvalds	6b3a707736	Merge branch 'page-refs' (page ref overflow) ... Merge page ref overflow branch. Jann Horn reported that he can overflow the page ref count with sufficient memory (and a filesystem that is intentionally extremely slow). Admittedly it's not exactly easy. To have more than four billion references to a page requires a minimum of 32GB of kernel memory just for the pointers to the pages, much less any metadata to keep track of those pointers. Jann needed a total of 140GB of memory and a specially crafted filesystem that leaves all reads pending (in order to not ever free the page references and just keep adding more). Still, we have a fairly straightforward way to limit the two obvious user-controllable sources of page references: direct-IO like page references gotten through get_user_pages(), and the splice pipe page duplication. So let's just do that. * branch page-refs: fs: prevent page refcount overflow in pipe_buf_get mm: prevent get_user_pages() from overflowing page refcount mm: add 'try_get_page()' helper function mm: make page ref count overflow check tighter and more explicit	2019-04-14 15:09:40 -07:00
Matthew Wilcox	15fab63e1e	fs: prevent page refcount overflow in pipe_buf_get ... Change pipe_buf_get() to return a bool indicating whether it succeeded in raising the refcount of the page (if the thing in the pipe is a page). This removes another mechanism for overflowing the page refcount. All callers converted to handle a failure. Reported-by: Jann Horn <jannh@google.com> Signed-off-by: Matthew Wilcox <willy@infradead.org> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>	2019-04-14 10:00:04 -07:00
Linus Torvalds	5f739e4a49	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs ... Pull misc vfs updates from Al Viro: "Assorted fixes (really no common topic here)" * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: vfs: Make __vfs_write() static vfs: fix preadv64v2 and pwritev64v2 compat syscalls with offset == -1 pipe: stop using ->can_merge splice: don't merge into linked buffers fs: move generic stat response attr handling to vfs_getattr_nosec orangefs: don't reinitialize result_mask in ->getattr fs/devpts: always delete dcache dentry-s in dput()	2019-03-12 13:27:20 -07:00
Slavomir Kaslev	ee5e001196	fs: Make splice() and tee() take into account O_NONBLOCK flag on pipes ... The current implementation of splice() and tee() ignores O_NONBLOCK set on pipe file descriptors and checks only the SPLICE_F_NONBLOCK flag for blocking on pipe arguments. This is inconsistent since splice()-ing from/to non-pipe file descriptors does take O_NONBLOCK into consideration. Fix this by promoting O_NONBLOCK, when set on a pipe, to SPLICE_F_NONBLOCK. Some context for how the current implementation of splice() leads to inconsistent behavior. In the ongoing work[1] to add VM tracing capability to trace-cmd we stream tracing data over named FIFOs or vsockets from guests back to the host. When we receive SIGINT from user to stop tracing, we set O_NONBLOCK on the input file descriptor and set SPLICE_F_NONBLOCK for the next call to splice(). If splice() was blocked waiting on data from the input FIFO, after SIGINT splice() restarts with the same arguments (no SPLICE_F_NONBLOCK) and blocks again instead of returning -EAGAIN when no data is available. This differs from the splice() behavior when reading from a vsocket or when we're doing a traditional read()/write() loop (trace-cmd's --nosplice argument). With this patch applied we get the same behavior in all situations after setting O_NONBLOCK which also matches the behavior of doing a read()/write() loop instead of splice(). This change does have potential of breaking users who don't expect EAGAIN from splice() when SPLICE_F_NONBLOCK is not set. OTOH programs that set O_NONBLOCK and don't anticipate EAGAIN are arguably buggy[2]. [1] https://github.com/skaslev/trace-cmd/tree/vsock [2] d47e3da175/fs/read_write.c (L1425) Signed-off-by: Slavomir Kaslev <kaslevs@vmware.com> Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>	2019-03-04 16:10:17 -08:00