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13 daysMerge tag 'for-6.16-rc4-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux Pull btrfs fixes from David Sterba: - tree-log fixes: - fixes of log tracking of directories and subvolumes - fix iteration and error handling of inode references during log replay - fix free space tree rebuild (reported by syzbot) * tag 'for-6.16-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: btrfs: use btrfs_record_snapshot_destroy() during rmdir btrfs: propagate last_unlink_trans earlier when doing a rmdir btrfs: record new subvolume in parent dir earlier to avoid dir logging races btrfs: fix inode lookup error handling during log replay btrfs: fix iteration of extrefs during log replay btrfs: fix missing error handling when searching for inode refs during log replay btrfs: fix failure to rebuild free space tree using multiple transactions
13 daysMerge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Driver fixes plus core sd.c fix are all small and obvious. The larger change to hosts.c is less obvious, but required to avoid data corruption caused by bio splitting" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: ufs: core: Fix spelling of a sysfs attribute name scsi: core: Enforce unlimited max_segment_size when virt_boundary_mask is set scsi: RDMA/srp: Don't set a max_segment_size when virt_boundary_mask is set scsi: sd: Fix VPD page 0xb7 length check scsi: qla4xxx: Fix missing DMA mapping error in qla4xxx_alloc_pdu() scsi: qla2xxx: Fix DMA mapping test in qla24xx_get_port_database()
13 daysMerge tag 'net-6.16-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Including fixes from Bluetooth. Current release - new code bugs: - eth: - txgbe: fix the issue of TX failure - ngbe: specify IRQ vector when the number of VFs is 7 Previous releases - regressions: - sched: always pass notifications when child class becomes empty - ipv4: fix stat increase when udp early demux drops the packet - bluetooth: prevent unintended pause by checking if advertising is active - virtio: fix error reporting in virtqueue_resize - eth: - virtio-net: - ensure the received length does not exceed allocated size - fix the xsk frame's length check - lan78xx: fix WARN in __netif_napi_del_locked on disconnect Previous releases - always broken: - bluetooth: mesh: check instances prior disabling advertising - eth: - idpf: convert control queue mutex to a spinlock - dpaa2: fix xdp_rxq_info leak - amd-xgbe: align CL37 AN sequence as per databook" * tag 'net-6.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (38 commits) vsock/vmci: Clear the vmci transport packet properly when initializing it dt-bindings: net: sophgo,sg2044-dwmac: Drop status from the example net: ngbe: specify IRQ vector when the number of VFs is 7 net: wangxun: revert the adjustment of the IRQ vector sequence net: txgbe: request MISC IRQ in ndo_open virtio_net: Enforce minimum TX ring size for reliability virtio_net: Cleanup '2+MAX_SKB_FRAGS' virtio_ring: Fix error reporting in virtqueue_resize virtio-net: xsk: rx: fix the frame's length check virtio-net: use the check_mergeable_len helper virtio-net: remove redundant truesize check with PAGE_SIZE virtio-net: ensure the received length does not exceed allocated size net: ipv4: fix stat increase when udp early demux drops the packet net: libwx: fix the incorrect display of the queue number amd-xgbe: do not double read link status net/sched: Always pass notifications when child class becomes empty nui: Fix dma_mapping_error() check rose: fix dangling neighbour pointers in rose_rt_device_down() enic: fix incorrect MTU comparison in enic_change_mtu() amd-xgbe: align CL37 AN sequence as per databook ...
13 daysMerge tag 'xfs-fixes-6.16-rc5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds
Pull xfs fixes from Carlos Maiolino: - Fix umount hang with unflushable inodes (and add new tracepoint used for debugging this) - Fix ABBA deadlock in xfs_reclaim_inode() vs xfs_ifree_cluster() - Fix dquot buffer pin deadlock * tag 'xfs-fixes-6.16-rc5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: add FALLOC_FL_ALLOCATE_RANGE to supported flags mask xfs: fix unmount hang with unflushable inodes stuck in the AIL xfs: factor out stale buffer item completion xfs: rearrange code in xfs_buf_item.c xfs: add tracepoints for stale pinned inode state debug xfs: avoid dquot buffer pin deadlock xfs: catch stale AGF/AGF metadata xfs: xfs_ifree_cluster vs xfs_iflush_shutdown_abort deadlock xfs: actually use the xfs_growfs_check_rtgeom tracepoint xfs: Improve error handling in xfs_mru_cache_create() xfs: move xfs_submit_zoned_bio a bit xfs: use xfs_readonly_buftarg in xfs_remount_rw xfs: remove NULL pointer checks in xfs_mru_cache_insert xfs: check for shutdown before going to sleep in xfs_select_zone
13 daysMerge tag 'nvme-6.16-2025-07-03' of git://git.infradead.org/nvme into block-6.16Jens Axboe
Pull NVMe fixes from Christoph: "- fix incorrect cdw15 value in passthru error logging (Alok Tiwari) - fix memory leak of bio integrity in nvmet (Dmitry Bogdanov) - refresh visible attrs after being checked (Eugen Hristev) - fix suspicious RCU usage warning in the multipath code (Geliang Tang) - correctly account for namespace head reference counter (Nilay Shroff)" * tag 'nvme-6.16-2025-07-03' of git://git.infradead.org/nvme: nvme-multipath: fix suspicious RCU usage warning nvme-pci: refresh visible attrs after being checked nvmet: fix memory leak of bio integrity nvme: correctly account for namespace head reference counter nvme: Fix incorrect cdw15 value in passthru error logging
13 daysMerge tag 'apple-soc-fixes-6.16' of ↵Arnd Bergmann
https://git.kernel.org/pub/scm/linux/kernel/git/sven/linux into arm/fixes Apple SoC fixes for 6.16 One devicetree fix for a dtbs_warning that's been present for a while: - Rename the PCIe BCM4377 node to conform to the devicetree binding schema Two devicetree fixes for W=1 warnings that have been introduced recently: - Drop {address,size}-cells from SPI NOR which doesn't have any child nodes such that these don't make sense - Move touchbar mipi {address,size}-cells from the dtsi file where the node is disabled and has no children to the dts file where it's enabled and its children are declared Signed-off-by: Sven Peter <sven@kernel.org> * tag 'apple-soc-fixes-6.16' of https://git.kernel.org/pub/scm/linux/kernel/git/sven/linux: arm64: dts: apple: Move touchbar mipi {address,size}-cells from dtsi to dts arm64: dts: apple: Drop {address,size}-cells from SPI NOR arm64: dts: apple: t8103: Fix PCIe BCM4377 nodename
13 daysMerge tag 'optee-fix-for-v6.16' of ↵Arnd Bergmann
https://git.kernel.org/pub/scm/linux/kernel/git/jenswi/linux-tee into arm/fixes A fix in the OP-TEE driver for v6.16 Fixing a sleep in atomic context in the FF-A notification callback by adding a work queue to process in a non-atomic context. * tag 'optee-fix-for-v6.16' of https://git.kernel.org/pub/scm/linux/kernel/git/jenswi/linux-tee: optee: ffa: fix sleep in atomic context
13 daysMerge tag 'samsung-fixes-6.16' of ↵Arnd Bergmann
https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/fixes Samsung SoC fixes for v6.16 1. Correct CONFIG option in arm64 defconfig enabling the Qualcomm SoC SNPS EUSB2 phy driver, because Kconfig entry was renamed when changing the driver to a common one, shared with Samsung SoC, thus defconfig lost that driver effectively. 2. Exynos ACPM: Fix timeouts happening with multiple requests. * tag 'samsung-fixes-6.16' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: firmware: exynos-acpm: fix timeouts on xfers handling arm64: defconfig: update renamed PHY_SNPS_EUSB2
13 daysdrm/xe: Do not wedge device on killed exec queuesMatthew Brost
When a user closes an exec queue or interrupts an app with Ctrl-C, this does not warrant wedging the device in mode 2. Avoid this by skipping the wedge check for killed exec queues in the TDR and LR exec queue cleanup worker. Signed-off-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://lore.kernel.org/r/20250624174103.2707941-1-matthew.brost@intel.com (cherry picked from commit 5a2f117a80c207372513ca8964eeb178874f4990) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
13 daysdrm/xe: Extend WA 14018094691 to BMGDaniele Ceraolo Spurio
This WA is applicable to BMG as well. Note that this is a GSC WA and we don't load the GSC on BMG, so extending the WA to BMG won't do anything right now. However, it helps future-proof the driver so that if we ever turn the GSC on we won't have to remember to extend this WA. v2: don't use VERSION_RANGE from 2001 to 2004 (Matt) Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Link: https://lore.kernel.org/r/20250613231128.1261815-2-daniele.ceraolospurio@intel.com (cherry picked from commit 1a5ce0c5b95b0624ebd44f574b98003a466973be) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
13 daysMerge tag 'ffa-fixes-6.16' of ↵Arnd Bergmann
https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/fixes Arm FF-A fixes for v6.16 Couple of fixes to address: 1. The safety and memory issues in the FF-A notification callback handler: The fixes replaces a mutex with an rwlock to prevent sleeping in atomic context, resolving kernel warnings. Memory allocation is moved outside the lock to support this transition safely. Additionally, a memory leak in the notifier unregistration path is fixed by properly freeing the callback node. 2. The missing entry in struct ffa_indirect_msg_hdr: The fix adds the missing 32 bit reserved entry in the structure as required by the FF-A specification. * tag 'ffa-fixes-6.16' of https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux: firmware: arm_ffa: Fix the missing entry in struct ffa_indirect_msg_hdr firmware: arm_ffa: Replace mutex with rwlock to avoid sleep in atomic context firmware: arm_ffa: Move memory allocation outside the mutex locking firmware: arm_ffa: Fix memory leak by freeing notifier callback node Link: https://lore.kernel.org/r/20250609105207.1185570-1-sudeep.holla@arm.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
13 daysregulator: gpio: Fix the out-of-bounds access to drvdata::gpiodsManivannan Sadhasivam
drvdata::gpiods is supposed to hold an array of 'gpio_desc' pointers. But the memory is allocated for only one pointer. This will lead to out-of-bounds access later in the code if 'config::ngpios' is > 1. So fix the code to allocate enough memory to hold 'config::ngpios' of GPIO descriptors. While at it, also move the check for memory allocation failure to be below the allocation to make it more readable. Cc: stable@vger.kernel.org # 5.0 Fixes: d6cd33ad7102 ("regulator: gpio: Convert to use descriptors") Signed-off-by: Manivannan Sadhasivam <mani@kernel.org> Link: https://patch.msgid.link/20250703103549.16558-1-mani@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
13 daysRevert "ACPI: battery: negate current when discharging"Rafael J. Wysocki
Revert commit 234f71555019 ("ACPI: battery: negate current when discharging") breaks not one but several userspace implementations of battery monitoring: Steam and MangoHud. Perhaps it breaks more, but those are the two that have been tested. Reported-by: Matthew Schwartz <matthew.schwartz@linux.dev> Closes: https://lore.kernel.org/linux-acpi/87C1B2AF-D430-4568-B620-14B941A8ABA4@linux.dev/ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
13 daysvsock/vmci: Clear the vmci transport packet properly when initializing itHarshaVardhana S A
In vmci_transport_packet_init memset the vmci_transport_packet before populating the fields to avoid any uninitialised data being left in the structure. Cc: Bryan Tan <bryan-bt.tan@broadcom.com> Cc: Vishnu Dasa <vishnu.dasa@broadcom.com> Cc: Broadcom internal kernel review list Cc: Stefano Garzarella <sgarzare@redhat.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Simon Horman <horms@kernel.org> Cc: virtualization@lists.linux.dev Cc: netdev@vger.kernel.org Cc: stable <stable@kernel.org> Signed-off-by: HarshaVardhana S A <harshavardhana.sa@broadcom.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Fixes: d021c344051a ("VSOCK: Introduce VM Sockets") Acked-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://patch.msgid.link/20250701122254.2397440-1-gregkh@linuxfoundation.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
13 daysdt-bindings: net: sophgo,sg2044-dwmac: Drop status from the exampleKrzysztof Kozlowski
Examples should be complete and should not have a 'status' property, especially a disabled one because this disables the dt_binding_check of the example against the schema. Dropping 'status' property shows missing other properties - phy-mode and phy-handle. Fixes: 114508a89ddc ("dt-bindings: net: Add support for Sophgo SG2044 dwmac") Cc: <stable@vger.kernel.org> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Reviewed-by: Chen Wang <unicorn_wang@outlook.com> Link: https://patch.msgid.link/20250701063621.23808-2-krzysztof.kozlowski@linaro.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
13 daysMerge branch 'fix-irq-vectors'Paolo Abeni
Jiawen Wu says: ==================== Fix IRQ vectors The interrupt vector order was adjusted by [1]commit 937d46ecc5f9 ("net: wangxun: add ethtool_ops for channel number") in Linux-6.8. Because at that time, the MISC interrupt acts as the parent interrupt in the GPIO IRQ chip. When the number of Rx/Tx ring changes, the last MISC interrupt must be reallocated. Then the GPIO interrupt controller would be corrupted. So the initial plan was to adjust the sequence of the interrupt vectors, let MISC interrupt to be the first one and do not free it. Later, irq_domain was introduced in [2]commit aefd013624a1 ("net: txgbe: use irq_domain for interrupt controller") to avoid this problem. However, the vector sequence adjustment was not reverted. So there is still one problem that has been left unresolved. Due to hardware limitations of NGBE, queue IRQs can only be requested on vector 0 to 7. When the number of queues is set to the maximum 8, the PCI IRQ vectors are allocated from 0 to 8. The vector 0 is used by MISC interrupt, and althrough the vector 8 is used by queue interrupt, it is unable to receive packets. This will cause some packets to be dropped when RSS is enabled and they are assigned to queue 8. This patch set fix the above problems. [1] https://git.kernel.org/netdev/net-next/c/937d46ecc5f9 [2] https://git.kernel.org/netdev/net-next/c/aefd013624a1 ==================== Link: https://patch.msgid.link/20250701063030.59340-1-jiawenwu@trustnetic.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
13 daysnet: ngbe: specify IRQ vector when the number of VFs is 7Jiawen Wu
For NGBE devices, the queue number is limited to be 1 when SRIOV is enabled. In this case, IRQ vector[0] is used for MISC and vector[1] is used for queue, based on the previous patches. But for the hardware design, the IRQ vector[1] must be allocated for use by the VF[6] when the number of VFs is 7. So the IRQ vector[0] should be shared for PF MISC and QUEUE interrupts. +-----------+----------------------+ | Vector | Assigned To | +-----------+----------------------+ | Vector 0 | PF MISC and QUEUE | | Vector 1 | VF 6 | | Vector 2 | VF 5 | | Vector 3 | VF 4 | | Vector 4 | VF 3 | | Vector 5 | VF 2 | | Vector 6 | VF 1 | | Vector 7 | VF 0 | +-----------+----------------------+ Minimize code modifications, only adjust the IRQ vector number for this case. Fixes: 877253d2cbf2 ("net: ngbe: add sriov function support") Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com> Reviewed-by: Larysa Zaremba <larysa.zaremba@intel.com> Link: https://patch.msgid.link/20250701063030.59340-4-jiawenwu@trustnetic.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
13 daysnet: wangxun: revert the adjustment of the IRQ vector sequenceJiawen Wu
Due to hardware limitations of NGBE, queue IRQs can only be requested on vector 0 to 7. When the number of queues is set to the maximum 8, the PCI IRQ vectors are allocated from 0 to 8. The vector 0 is used by MISC interrupt, and althrough the vector 8 is used by queue interrupt, it is unable to receive packets. This will cause some packets to be dropped when RSS is enabled and they are assigned to queue 8. So revert the adjustment of the MISC IRQ location, to make it be the last one in IRQ vectors. Fixes: 937d46ecc5f9 ("net: wangxun: add ethtool_ops for channel number") Cc: stable@vger.kernel.org Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com> Reviewed-by: Larysa Zaremba <larysa.zaremba@intel.com> Link: https://patch.msgid.link/20250701063030.59340-3-jiawenwu@trustnetic.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
13 daysnet: txgbe: request MISC IRQ in ndo_openJiawen Wu
Move the creating of irq_domain for MISC IRQ from .probe to .ndo_open, and free it in .ndo_stop, to maintain consistency with the queue IRQs. This it for subsequent adjustments to the IRQ vectors. Fixes: aefd013624a1 ("net: txgbe: use irq_domain for interrupt controller") Cc: stable@vger.kernel.org Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com> Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Link: https://patch.msgid.link/20250701063030.59340-2-jiawenwu@trustnetic.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
13 daysMerge branch 'virtio-fixes-for-tx-ring-sizing-and-resize-error-reporting'Paolo Abeni
Laurent Vivier says: ==================== virtio: Fixes for TX ring sizing and resize error reporting This patch series contains two fixes and a cleanup for the virtio subsystem. The first patch fixes an error reporting bug in virtio_ring's virtqueue_resize() function. Previously, errors from internal resize helpers could be masked if the subsequent re-enabling of the virtqueue succeeded. This patch restores the correct error propagation, ensuring that callers of virtqueue_resize() are properly informed of underlying resize failures. The second patch does a cleanup of the use of '2+MAX_SKB_FRAGS' The third patch addresses a reliability issue in virtio_net where the TX ring size could be configured too small, potentially leading to persistently stopped queues and degraded performance. It enforces a minimum TX ring size to ensure there's always enough space for at least one maximally-fragmented packet plus an additional slot. ==================== Link: https://patch.msgid.link/20250521092236.661410-1-lvivier@redhat.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
13 daysvirtio_net: Enforce minimum TX ring size for reliabilityLaurent Vivier
The `tx_may_stop()` logic stops TX queues if free descriptors (`sq->vq->num_free`) fall below the threshold of (`MAX_SKB_FRAGS` + 2). If the total ring size (`ring_num`) is not strictly greater than this value, queues can become persistently stopped or stop after minimal use, severely degrading performance. A single sk_buff transmission typically requires descriptors for: - The virtio_net_hdr (1 descriptor) - The sk_buff's linear data (head) (1 descriptor) - Paged fragments (up to MAX_SKB_FRAGS descriptors) This patch enforces that the TX ring size ('ring_num') must be strictly greater than (MAX_SKB_FRAGS + 2). This ensures that the ring is always large enough to hold at least one maximally-fragmented packet plus at least one additional slot. Reported-by: Lei Yang <leiyang@redhat.com> Signed-off-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com> Acked-by: Jason Wang <jasowang@redhat.com> Link: https://patch.msgid.link/20250521092236.661410-4-lvivier@redhat.com Tested-by: Lei Yang <leiyang@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
13 daysvirtio_net: Cleanup '2+MAX_SKB_FRAGS'Laurent Vivier
Improve consistency by using everywhere it is needed 'MAX_SKB_FRAGS + 2' rather than '2+MAX_SKB_FRAGS' or '2 + MAX_SKB_FRAGS'. No functional change. Signed-off-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com> Acked-by: Jason Wang <jasowang@redhat.com> Link: https://patch.msgid.link/20250521092236.661410-3-lvivier@redhat.com Tested-by: Lei Yang <leiyang@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
13 daysvirtio_ring: Fix error reporting in virtqueue_resizeLaurent Vivier
The virtqueue_resize() function was not correctly propagating error codes from its internal resize helper functions, specifically virtqueue_resize_packet() and virtqueue_resize_split(). If these helpers returned an error, but the subsequent call to virtqueue_enable_after_reset() succeeded, the original error from the resize operation would be masked. Consequently, virtqueue_resize() could incorrectly report success to its caller despite an underlying resize failure. This change restores the original code behavior: if (vdev->config->enable_vq_after_reset(_vq)) return -EBUSY; return err; Fix: commit ad48d53b5b3f ("virtio_ring: separate the logic of reset/enable from virtqueue_resize") Cc: xuanzhuo@linux.alibaba.com Signed-off-by: Laurent Vivier <lvivier@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Link: https://patch.msgid.link/20250521092236.661410-2-lvivier@redhat.com Tested-by: Lei Yang <leiyang@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
13 daysHID: appletb-kbd: fix slab use-after-free bug in appletb_kbd_probeQasim Ijaz
In probe appletb_kbd_probe() a "struct appletb_kbd *kbd" is allocated via devm_kzalloc() to store touch bar keyboard related data. Later on if backlight_device_get_by_name() finds a backlight device with name "appletb_backlight" a timer (kbd->inactivity_timer) is setup with appletb_inactivity_timer() and the timer is armed to run after appletb_tb_dim_timeout (60) seconds. A use-after-free is triggered when failure occurs after the timer is armed. This ultimately means probe failure occurs and as a result the "struct appletb_kbd *kbd" which is device managed memory is freed. After 60 seconds the timer will have expired and __run_timers will attempt to access the timer (kbd->inactivity_timer) however the kdb structure has been freed causing a use-after free. [ 71.636938] ================================================================== [ 71.637915] BUG: KASAN: slab-use-after-free in __run_timers+0x7ad/0x890 [ 71.637915] Write of size 8 at addr ffff8881178c5958 by task swapper/1/0 [ 71.637915] [ 71.637915] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.16.0-rc2-00318-g739a6c93cc75-dirty #12 PREEMPT(voluntary) [ 71.637915] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 71.637915] Call Trace: [ 71.637915] <IRQ> [ 71.637915] dump_stack_lvl+0x53/0x70 [ 71.637915] print_report+0xce/0x670 [ 71.637915] ? __run_timers+0x7ad/0x890 [ 71.637915] kasan_report+0xce/0x100 [ 71.637915] ? __run_timers+0x7ad/0x890 [ 71.637915] __run_timers+0x7ad/0x890 [ 71.637915] ? __pfx___run_timers+0x10/0x10 [ 71.637915] ? update_process_times+0xfc/0x190 [ 71.637915] ? __pfx_update_process_times+0x10/0x10 [ 71.637915] ? _raw_spin_lock_irq+0x80/0xe0 [ 71.637915] ? _raw_spin_lock_irq+0x80/0xe0 [ 71.637915] ? __pfx__raw_spin_lock_irq+0x10/0x10 [ 71.637915] run_timer_softirq+0x141/0x240 [ 71.637915] ? __pfx_run_timer_softirq+0x10/0x10 [ 71.637915] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 71.637915] ? kvm_clock_get_cycles+0x18/0x30 [ 71.637915] ? ktime_get+0x60/0x140 [ 71.637915] handle_softirqs+0x1b8/0x5c0 [ 71.637915] ? __pfx_handle_softirqs+0x10/0x10 [ 71.637915] irq_exit_rcu+0xaf/0xe0 [ 71.637915] sysvec_apic_timer_interrupt+0x6c/0x80 [ 71.637915] </IRQ> [ 71.637915] [ 71.637915] Allocated by task 39: [ 71.637915] kasan_save_stack+0x33/0x60 [ 71.637915] kasan_save_track+0x14/0x30 [ 71.637915] __kasan_kmalloc+0x8f/0xa0 [ 71.637915] __kmalloc_node_track_caller_noprof+0x195/0x420 [ 71.637915] devm_kmalloc+0x74/0x1e0 [ 71.637915] appletb_kbd_probe+0x37/0x3c0 [ 71.637915] hid_device_probe+0x2d1/0x680 [ 71.637915] really_probe+0x1c3/0x690 [ 71.637915] __driver_probe_device+0x247/0x300 [ 71.637915] driver_probe_device+0x49/0x210 [...] [ 71.637915] [ 71.637915] Freed by task 39: [ 71.637915] kasan_save_stack+0x33/0x60 [ 71.637915] kasan_save_track+0x14/0x30 [ 71.637915] kasan_save_free_info+0x3b/0x60 [ 71.637915] __kasan_slab_free+0x37/0x50 [ 71.637915] kfree+0xcf/0x360 [ 71.637915] devres_release_group+0x1f8/0x3c0 [ 71.637915] hid_device_probe+0x315/0x680 [ 71.637915] really_probe+0x1c3/0x690 [ 71.637915] __driver_probe_device+0x247/0x300 [ 71.637915] driver_probe_device+0x49/0x210 [...] The root cause of the issue is that the timer is not disarmed on failure paths leading to it remaining active and accessing freed memory. To fix this call timer_delete_sync() to deactivate the timer. Another small issue is that timer_delete_sync is called unconditionally in appletb_kbd_remove(), fix this by checking for a valid kbd->backlight_dev before calling timer_delete_sync. Fixes: 93a0fc489481 ("HID: hid-appletb-kbd: add support for automatic brightness control while using the touchbar") Cc: stable@vger.kernel.org Signed-off-by: Qasim Ijaz <qasdev00@gmail.com> Reviewed-by: Aditya Garg <gargaditya08@live.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
13 daysvirtio-net: xsk: rx: fix the frame's length checkBui Quang Minh
When calling buf_to_xdp, the len argument is the frame data's length without virtio header's length (vi->hdr_len). We check that len with xsk_pool_get_rx_frame_size() + vi->hdr_len to ensure the provided len does not larger than the allocated chunk size. The additional vi->hdr_len is because in virtnet_add_recvbuf_xsk, we use part of XDP_PACKET_HEADROOM for virtio header and ask the vhost to start placing data from hard_start + XDP_PACKET_HEADROOM - vi->hdr_len not hard_start + XDP_PACKET_HEADROOM But the first buffer has virtio_header, so the maximum frame's length in the first buffer can only be xsk_pool_get_rx_frame_size() not xsk_pool_get_rx_frame_size() + vi->hdr_len like in the current check. This commit adds an additional argument to buf_to_xdp differentiate between the first buffer and other ones to correctly calculate the maximum frame's length. Cc: stable@vger.kernel.org Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com> Fixes: a4e7ba702701 ("virtio_net: xsk: rx: support recv small mode") Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com> Link: https://patch.msgid.link/20250630151315.86722-2-minhquangbui99@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
13 daysMerge branch 'virtio-net-fixes-for-mergeable-xdp-receive-path'Paolo Abeni
Bui Quang Minh says: ==================== virtio-net: fixes for mergeable XDP receive path This series contains fixes for XDP receive path in virtio-net - Patch 1: add a missing check for the received data length with our allocated buffer size in mergeable mode. - Patch 2: remove a redundant truesize check with PAGE_SIZE in mergeable mode - Patch 3: make the current repeated code use the check_mergeable_len to check for received data length in mergeable mode ==================== Link: https://patch.msgid.link/20250630144212.48471-1-minhquangbui99@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
13 daysvirtio-net: use the check_mergeable_len helperBui Quang Minh
Replace the current repeated code to check received length in mergeable mode with the new check_mergeable_len helper. Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com> Acked-by: Jason Wang <jasowang@redhat.com> Link: https://patch.msgid.link/20250630144212.48471-4-minhquangbui99@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
13 daysvirtio-net: remove redundant truesize check with PAGE_SIZEBui Quang Minh
The truesize is guaranteed not to exceed PAGE_SIZE in get_mergeable_buf_len(). It is saved in mergeable context, which is not changeable by the host side, so the check in receive path is quite redundant. Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com> Link: https://patch.msgid.link/20250630144212.48471-3-minhquangbui99@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
13 daysvirtio-net: ensure the received length does not exceed allocated sizeBui Quang Minh
In xdp_linearize_page, when reading the following buffers from the ring, we forget to check the received length with the true allocate size. This can lead to an out-of-bound read. This commit adds that missing check. Cc: <stable@vger.kernel.org> Fixes: 4941d472bf95 ("virtio-net: do not reset during XDP set") Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com> Acked-by: Jason Wang <jasowang@redhat.com> Link: https://patch.msgid.link/20250630144212.48471-2-minhquangbui99@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
13 daysperf: Revert to requiring CAP_SYS_ADMIN for uprobesPeter Zijlstra
Jann reports that uprobes can be used destructively when used in the middle of an instruction. The kernel only verifies there is a valid instruction at the requested offset, but due to variable instruction length cannot determine if this is an instruction as seen by the intended execution stream. Additionally, Mark Rutland notes that on architectures that mix data in the text segment (like arm64), a similar things can be done if the data word is 'mistaken' for an instruction. As such, require CAP_SYS_ADMIN for uprobes. Fixes: c9e0924e5c2b ("perf/core: open access to probes for CAP_PERFMON privileged process") Reported-by: Jann Horn <jannh@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/CAG48ez1n4520sq0XrWYDHKiKxE_+WCfAK+qt9qkY4ZiBGmL-5g@mail.gmail.com
13 daysHID: Fix debug name for BTN_GEAR_DOWN, BTN_GEAR_UP, BTN_WHEELVicki Pfau
The name of BTN_GEAR_DOWN was WheelBtn and BTN_WHEEL was missing. Further, BTN_GEAR_UP had a space in its name and no Btn, which is against convention. This makes the names BtnGearDown, BtnGearUp, and BtnWheel, fixing the errors and matching convention. Signed-off-by: Vicki Pfau <vi@endrift.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
13 daysHID: elecom: add support for ELECOM HUGE 019B variantLeonard Dizon
The ELECOM M-HT1DRBK trackball has an additional device ID (056E:019B) not yet recognized by the driver, despite using the same report descriptor as earlier variants. This patch adds the new ID and applies the same fixups, enabling all 8 buttons to function properly. Signed-off-by: Leonard Dizon <leonard@snekbyte.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
13 daysHID: appletb-kbd: fix memory corruption of input_handler_listQasim Ijaz
In appletb_kbd_probe an input handler is initialised and then registered with input core through input_register_handler(). When this happens input core will add the input handler (specifically its node) to the global input_handler_list. The input_handler_list is central to the functionality of input core and is traversed in various places in input core. An example of this is when a new input device is plugged in and gets registered with input core. The input_handler in probe is allocated as device managed memory. If a probe failure occurs after input_register_handler() the input_handler memory is freed, yet it will remain in the input_handler_list. This effectively means the input_handler_list contains a dangling pointer to data belonging to a freed input handler. This causes an issue when any other input device is plugged in - in my case I had an old PixArt HP USB optical mouse and I decided to plug it in after a failure occurred after input_register_handler(). This lead to the registration of this input device via input_register_device which involves traversing over every handler in the corrupted input_handler_list and calling input_attach_handler(), giving each handler a chance to bind to newly registered device. The core of this bug is a UAF which causes memory corruption of input_handler_list and to fix it we must ensure the input handler is unregistered from input core, this is done through input_unregister_handler(). [ 63.191597] ================================================================== [ 63.192094] BUG: KASAN: slab-use-after-free in input_attach_handler.isra.0+0x1a9/0x1e0 [ 63.192094] Read of size 8 at addr ffff888105ea7c80 by task kworker/0:2/54 [ 63.192094] [ 63.192094] CPU: 0 UID: 0 PID: 54 Comm: kworker/0:2 Not tainted 6.16.0-rc2-00321-g2aa6621d [ 63.192094] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.164 [ 63.192094] Workqueue: usb_hub_wq hub_event [ 63.192094] Call Trace: [ 63.192094] <TASK> [ 63.192094] dump_stack_lvl+0x53/0x70 [ 63.192094] print_report+0xce/0x670 [ 63.192094] kasan_report+0xce/0x100 [ 63.192094] input_attach_handler.isra.0+0x1a9/0x1e0 [ 63.192094] input_register_device+0x76c/0xd00 [ 63.192094] hidinput_connect+0x686d/0xad60 [ 63.192094] hid_connect+0xf20/0x1b10 [ 63.192094] hid_hw_start+0x83/0x100 [ 63.192094] hid_device_probe+0x2d1/0x680 [ 63.192094] really_probe+0x1c3/0x690 [ 63.192094] __driver_probe_device+0x247/0x300 [ 63.192094] driver_probe_device+0x49/0x210 [ 63.192094] __device_attach_driver+0x160/0x320 [ 63.192094] bus_for_each_drv+0x10f/0x190 [ 63.192094] __device_attach+0x18e/0x370 [ 63.192094] bus_probe_device+0x123/0x170 [ 63.192094] device_add+0xd4d/0x1460 [ 63.192094] hid_add_device+0x30b/0x910 [ 63.192094] usbhid_probe+0x920/0xe00 [ 63.192094] usb_probe_interface+0x363/0x9a0 [ 63.192094] really_probe+0x1c3/0x690 [ 63.192094] __driver_probe_device+0x247/0x300 [ 63.192094] driver_probe_device+0x49/0x210 [ 63.192094] __device_attach_driver+0x160/0x320 [ 63.192094] bus_for_each_drv+0x10f/0x190 [ 63.192094] __device_attach+0x18e/0x370 [ 63.192094] bus_probe_device+0x123/0x170 [ 63.192094] device_add+0xd4d/0x1460 [ 63.192094] usb_set_configuration+0xd14/0x1880 [ 63.192094] usb_generic_driver_probe+0x78/0xb0 [ 63.192094] usb_probe_device+0xaa/0x2e0 [ 63.192094] really_probe+0x1c3/0x690 [ 63.192094] __driver_probe_device+0x247/0x300 [ 63.192094] driver_probe_device+0x49/0x210 [ 63.192094] __device_attach_driver+0x160/0x320 [ 63.192094] bus_for_each_drv+0x10f/0x190 [ 63.192094] __device_attach+0x18e/0x370 [ 63.192094] bus_probe_device+0x123/0x170 [ 63.192094] device_add+0xd4d/0x1460 [ 63.192094] usb_new_device+0x7b4/0x1000 [ 63.192094] hub_event+0x234d/0x3fa0 [ 63.192094] process_one_work+0x5bf/0xfe0 [ 63.192094] worker_thread+0x777/0x13a0 [ 63.192094] </TASK> [ 63.192094] [ 63.192094] Allocated by task 54: [ 63.192094] kasan_save_stack+0x33/0x60 [ 63.192094] kasan_save_track+0x14/0x30 [ 63.192094] __kasan_kmalloc+0x8f/0xa0 [ 63.192094] __kmalloc_node_track_caller_noprof+0x195/0x420 [ 63.192094] devm_kmalloc+0x74/0x1e0 [ 63.192094] appletb_kbd_probe+0x39/0x440 [ 63.192094] hid_device_probe+0x2d1/0x680 [ 63.192094] really_probe+0x1c3/0x690 [ 63.192094] __driver_probe_device+0x247/0x300 [ 63.192094] driver_probe_device+0x49/0x210 [ 63.192094] __device_attach_driver+0x160/0x320 [...] [ 63.192094] [ 63.192094] Freed by task 54: [ 63.192094] kasan_save_stack+0x33/0x60 [ 63.192094] kasan_save_track+0x14/0x30 [ 63.192094] kasan_save_free_info+0x3b/0x60 [ 63.192094] __kasan_slab_free+0x37/0x50 [ 63.192094] kfree+0xcf/0x360 [ 63.192094] devres_release_group+0x1f8/0x3c0 [ 63.192094] hid_device_probe+0x315/0x680 [ 63.192094] really_probe+0x1c3/0x690 [ 63.192094] __driver_probe_device+0x247/0x300 [ 63.192094] driver_probe_device+0x49/0x210 [ 63.192094] __device_attach_driver+0x160/0x320 [...] Fixes: 7d62ba8deacf ("HID: hid-appletb-kbd: add support for fn toggle between media and function mode") Cc: stable@vger.kernel.org Reviewed-by: Aditya Garg <gargaditya08@live.com> Signed-off-by: Qasim Ijaz <qasdev00@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
13 daysdrm/v3d: Disable interrupts before resetting the GPUMaíra Canal
Currently, an interrupt can be triggered during a GPU reset, which can lead to GPU hangs and NULL pointer dereference in an interrupt context as shown in the following trace: [ 314.035040] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000c0 [ 314.043822] Mem abort info: [ 314.046606] ESR = 0x0000000096000005 [ 314.050347] EC = 0x25: DABT (current EL), IL = 32 bits [ 314.055651] SET = 0, FnV = 0 [ 314.058695] EA = 0, S1PTW = 0 [ 314.061826] FSC = 0x05: level 1 translation fault [ 314.066694] Data abort info: [ 314.069564] ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000 [ 314.075039] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 314.080080] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 314.085382] user pgtable: 4k pages, 39-bit VAs, pgdp=0000000102728000 [ 314.091814] [00000000000000c0] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000 [ 314.100511] Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP [ 314.106770] Modules linked in: v3d i2c_brcmstb vc4 snd_soc_hdmi_codec gpu_sched drm_shmem_helper drm_display_helper cec drm_dma_helper drm_kms_helper drm drm_panel_orientation_quirks snd_soc_core snd_compress snd_pcm_dmaengine snd_pcm snd_timer snd backlight [ 314.129654] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.25+rpt-rpi-v8 #1 Debian 1:6.12.25-1+rpt1 [ 314.139388] Hardware name: Raspberry Pi 4 Model B Rev 1.4 (DT) [ 314.145211] pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 314.152165] pc : v3d_irq+0xec/0x2e0 [v3d] [ 314.156187] lr : v3d_irq+0xe0/0x2e0 [v3d] [ 314.160198] sp : ffffffc080003ea0 [ 314.163502] x29: ffffffc080003ea0 x28: ffffffec1f184980 x27: 021202b000000000 [ 314.170633] x26: ffffffec1f17f630 x25: ffffff8101372000 x24: ffffffec1f17d9f0 [ 314.177764] x23: 000000000000002a x22: 000000000000002a x21: ffffff8103252000 [ 314.184895] x20: 0000000000000001 x19: 00000000deadbeef x18: 0000000000000000 [ 314.192026] x17: ffffff94e51d2000 x16: ffffffec1dac3cb0 x15: c306000000000000 [ 314.199156] x14: 0000000000000000 x13: b2fc982e03cc5168 x12: 0000000000000001 [ 314.206286] x11: ffffff8103f8bcc0 x10: ffffffec1f196868 x9 : ffffffec1dac3874 [ 314.213416] x8 : 0000000000000000 x7 : 0000000000042a3a x6 : ffffff810017a180 [ 314.220547] x5 : ffffffec1ebad400 x4 : ffffffec1ebad320 x3 : 00000000000bebeb [ 314.227677] x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 [ 314.234807] Call trace: [ 314.237243] v3d_irq+0xec/0x2e0 [v3d] [ 314.240906] __handle_irq_event_percpu+0x58/0x218 [ 314.245609] handle_irq_event+0x54/0xb8 [ 314.249439] handle_fasteoi_irq+0xac/0x240 [ 314.253527] handle_irq_desc+0x48/0x68 [ 314.257269] generic_handle_domain_irq+0x24/0x38 [ 314.261879] gic_handle_irq+0x48/0xd8 [ 314.265533] call_on_irq_stack+0x24/0x58 [ 314.269448] do_interrupt_handler+0x88/0x98 [ 314.273624] el1_interrupt+0x34/0x68 [ 314.277193] el1h_64_irq_handler+0x18/0x28 [ 314.281281] el1h_64_irq+0x64/0x68 [ 314.284673] default_idle_call+0x3c/0x168 [ 314.288675] do_idle+0x1fc/0x230 [ 314.291895] cpu_startup_entry+0x3c/0x50 [ 314.295810] rest_init+0xe4/0xf0 [ 314.299030] start_kernel+0x5e8/0x790 [ 314.302684] __primary_switched+0x80/0x90 [ 314.306691] Code: 940029eb 360ffc13 f9442ea0 52800001 (f9406017) [ 314.312775] ---[ end trace 0000000000000000 ]--- [ 314.317384] Kernel panic - not syncing: Oops: Fatal exception in interrupt [ 314.324249] SMP: stopping secondary CPUs [ 314.328167] Kernel Offset: 0x2b9da00000 from 0xffffffc080000000 [ 314.334076] PHYS_OFFSET: 0x0 [ 314.336946] CPU features: 0x08,00002013,c0200000,0200421b [ 314.342337] Memory Limit: none [ 314.345382] ---[ end Kernel panic - not syncing: Oops: Fatal exception in interrupt ]--- Before resetting the GPU, it's necessary to disable all interrupts and deal with any interrupt handler still in-flight. Otherwise, the GPU might reset with jobs still running, or yet, an interrupt could be handled during the reset. Cc: stable@vger.kernel.org Fixes: 57692c94dcbe ("drm/v3d: Introduce a new DRM driver for Broadcom V3D V3.x+") Reviewed-by: Juan A. Suarez <jasuarez@igalia.com> Reviewed-by: Iago Toral Quiroga <itoral@igalia.com> Link: https://lore.kernel.org/r/20250628224243.47599-1-mcanal@igalia.com Signed-off-by: Maíra Canal <mcanal@igalia.com>
13 daysMerge branch '200GbE' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue Tony Nguyen says: ==================== Intel Wired LAN Driver Updates 2025-07-01 (idpf, igc) For idpf: Michal returns 0 for key size when RSS is not supported. Ahmed changes control queue to a spinlock due to sleeping calls. For igc: Vitaly disables L1.2 PCI-E link substate on I226 devices to resolve performance issues. * '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue: igc: disable L1.2 PCI-E link substate to avoid performance issue idpf: convert control queue mutex to a spinlock idpf: return 0 size for RSS key if not supported ==================== Link: https://patch.msgid.link/20250701164317.2983952-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
13 daysnet: ipv4: fix stat increase when udp early demux drops the packetAntoine Tenart
udp_v4_early_demux now returns drop reasons as it either returns 0 or ip_mc_validate_source, which returns itself a drop reason. However its use was not converted in ip_rcv_finish_core and the drop reason is ignored, leading to potentially skipping increasing LINUX_MIB_IPRPFILTER if the drop reason is SKB_DROP_REASON_IP_RPFILTER. This is a fix and we're not converting udp_v4_early_demux to explicitly return a drop reason to ease backports; this can be done as a follow-up. Fixes: d46f827016d8 ("net: ip: make ip_mc_validate_source() return drop reason") Cc: Menglong Dong <menglong8.dong@gmail.com> Reported-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: Antoine Tenart <atenart@kernel.org> Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Link: https://patch.msgid.link/20250701074935.144134-1-atenart@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
13 daysnet: libwx: fix the incorrect display of the queue numberJiawen Wu
When setting "ethtool -L eth0 combined 1", the number of RX/TX queue is changed to be 1. RSS is disabled at this moment, and the indices of FDIR have not be changed in wx_set_rss_queues(). So the combined count still shows the previous value. This issue was introduced when supporting FDIR. Fix it for those devices that support FDIR. Fixes: 34744a7749b3 ("net: txgbe: add FDIR info to ethtool ops") Cc: stable@vger.kernel.org Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/A5C8FE56D6C04608+20250701070625.73680-1-jiawenwu@trustnetic.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
13 daysamd-xgbe: do not double read link statusRaju Rangoju
The link status is latched low so that momentary link drops can be detected. Always double-reading the status defeats this design feature. Only double read if link was already down This prevents unnecessary duplicate readings of the link status. Fixes: 4f3b20bfbb75 ("amd-xgbe: add support for rx-adaptation") Signed-off-by: Raju Rangoju <Raju.Rangoju@amd.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250701065016.4140707-1-Raju.Rangoju@amd.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
13 daysnet/sched: Always pass notifications when child class becomes emptyLion Ackermann
Certain classful qdiscs may invoke their classes' dequeue handler on an enqueue operation. This may unexpectedly empty the child qdisc and thus make an in-flight class passive via qlen_notify(). Most qdiscs do not expect such behaviour at this point in time and may re-activate the class eventually anyways which will lead to a use-after-free. The referenced fix commit attempted to fix this behavior for the HFSC case by moving the backlog accounting around, though this turned out to be incomplete since the parent's parent may run into the issue too. The following reproducer demonstrates this use-after-free: tc qdisc add dev lo root handle 1: drr tc filter add dev lo parent 1: basic classid 1:1 tc class add dev lo parent 1: classid 1:1 drr tc qdisc add dev lo parent 1:1 handle 2: hfsc def 1 tc class add dev lo parent 2: classid 2:1 hfsc rt m1 8 d 1 m2 0 tc qdisc add dev lo parent 2:1 handle 3: netem tc qdisc add dev lo parent 3:1 handle 4: blackhole echo 1 | socat -u STDIN UDP4-DATAGRAM:127.0.0.1:8888 tc class delete dev lo classid 1:1 echo 1 | socat -u STDIN UDP4-DATAGRAM:127.0.0.1:8888 Since backlog accounting issues leading to a use-after-frees on stale class pointers is a recurring pattern at this point, this patch takes a different approach. Instead of trying to fix the accounting, the patch ensures that qdisc_tree_reduce_backlog always calls qlen_notify when the child qdisc is empty. This solves the problem because deletion of qdiscs always involves a call to qdisc_reset() and / or qdisc_purge_queue() which ultimately resets its qlen to 0 thus causing the following qdisc_tree_reduce_backlog() to report to the parent. Note that this may call qlen_notify on passive classes multiple times. This is not a problem after the recent patch series that made all the classful qdiscs qlen_notify() handlers idempotent. Fixes: 3f981138109f ("sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue()") Signed-off-by: Lion Ackermann <nnamrec@gmail.com> Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com> Acked-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Link: https://patch.msgid.link/d912cbd7-193b-4269-9857-525bee8bbb6a@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
14 daysPM: sleep: docs: Replace "diasble" with "disable"Sumanth Gavini
Fix misspelling reported by codespell. Signed-off-by: Sumanth Gavini <sumanth.gavini@yahoo.com> Link: https://patch.msgid.link/20250523220238.455718-1-sumanth.gavini@yahoo.com [ rjw: Subject rewrite ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
14 daysMerge tag 'riscv-fixes-6.16-rc4' of ↵Palmer Dabbelt
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/alexghiti/linux into fixes riscv fixes for 6.16-rc4 - A fix for a percpu variable that may lie in the vmalloc region and on which we used __pa() - A fix to require at least clang-17 to prevent build issues with previous versions on kCFI * tag 'riscv-fixes-6.16-rc4' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/alexghiti/linux: riscv: cpu_ops_sbi: Use static array for boot_data riscv: Require clang-17 or newer for kCFI
14 daysMerge tag 'mmc-v6.16-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc Pull MMC fixes from Ulf Hansson: "MMC core: - Apply BROKEN_SD_DISCARD quirk earlier during init - Silence some confusing error messages for SD UHS-II cards MMC host: - mtk-sd: - Prevent memory corruption from DMA map failure - Fix a pagefault in dma_unmap_sg() for not prepared data - sdhci: Revert "Disable SD card clock before changing parameters" - sdhci-of-k1: Fix error code in probe() - sdhci-uhs2: Silence some confusing error messages for SD UHS-II cards" * tag 'mmc-v6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mtk-sd: reset host->mrq on prepare_data() error Revert "mmc: sdhci: Disable SD card clock before changing parameters" mmc: sdhci-uhs2: Adjust some error messages and register dump for SD UHS-II card mmc: sdhci: Add a helper function for dump register in dynamic debug mode mmc: core: Adjust some error messages for SD UHS-II cards mtk-sd: Prevent memory corruption from DMA map failure mtk-sd: Fix a pagefault in dma_unmap_sg() for not prepared data mmc: sdhci-of-k1: Fix error code in probe() mmc: core: sd: Apply BROKEN_SD_DISCARD quirk earlier
14 daysMerge tag 's390-6.16-4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Alexander Gordeev: - Fix PCI error recovery and bring it in line with AER/EEH * tag 's390-6.16-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/pci: Allow automatic recovery with minimal driver support s390/pci: Do not try re-enabling load/store if device is disabled s390/pci: Fix stale function handles in error handling
14 daysMerge tag 'for-linus-iommufd' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd Pull iommufd fixes from Jason Gunthorpe: "Some changes to the userspace selftest framework cause the iommufd tests to start failing. This turned out to be bugs in the iommufd side that were just getting uncovered. - Deal with MAP_HUGETLB mmaping more than requested even when in MAP_FIXED mode - Fixup missing error flow cleanup in the test - Check that the memory allocations suceeded - Suppress some bogus gcc 'may be used uninitialized' warnings" * tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd: iommufd/selftest: Fix build warnings due to uninitialized mfd iommufd/selftest: Add asserts testing global mfd iommufd/selftest: Add missing close(mfd) in memfd_mmap() iommufd/selftest: Fix iommufd_dirty_tracking with large hugepage sizes
14 daysMerge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds
Pull rdma fixes from Jason Gunthorpe: "Several mlx5 bugs, crashers, and reports: - Limit stack usage - Fix mis-use of __xa_store/erase() without holding the lock to a locked version - Rate limit prints in the gid cache error cases - Fully initialize the event object before making it globally visible in an xarray - Fix deadlock inside the ODP code if the MMU notifier was called from a reclaim context - Include missed counters for some switchdev configurations and mulit-port MPV mode - Fix loopback packet support when in mulit-port MPV mode" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: RDMA/mlx5: Fix vport loopback for MPV device RDMA/mlx5: Fix CC counters query for MPV RDMA/mlx5: Fix HW counters query for non-representor devices IB/core: Annotate umem_mutex acquisition under fs_reclaim for lockdep IB/mlx5: Fix potential deadlock in MR deregistration RDMA/mlx5: Initialize obj_event->obj_sub_list before xa_insert RDMA/core: Rate limit GID cache warning messages RDMA/mlx5: Fix unsafe xarray access in implicit ODP handling RDMA/mlx5: reduce stack usage in mlx5_ib_ufile_hw_cleanup
14 daysdt-bindings: i2c: realtek,rtl9301: Fix missing 'reg' constraintKrzysztof Kozlowski
Lists should have fixed amount if items, so add missing constraint to the 'reg' property (only one address space entry). Fixes: c5eda0333076 ("dt-bindings: i2c: Add Realtek RTL I2C Controller") Cc: <stable@vger.kernel.org> # v6.13+ Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Andi Shyti <andi.shyti@kernel.org> Link: https://lore.kernel.org/r/20250702061530.6940-2-krzysztof.kozlowski@linaro.org
14 daysanon_inode: rework assertionsChristian Brauner
Making anonymous inodes regular files comes with a lot of risk and regression potential as evidenced by a recent hickup in io_uring. We're better of continuing to not have them be regular files. Since we have S_ANON_INODE we can port all of our assertions easily. Link: https://lore.kernel.org/20250702-work-fixes-v1-1-ff76ea589e33@kernel.org Fixes: cfd86ef7e8e7 ("anon_inode: use a proper mode internally") Acked-by: Jens Axboe <axboe@kernel.dk> Cc: stable@kernel.org Reported-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Christian Brauner <brauner@kernel.org>
14 daysnui: Fix dma_mapping_error() checkThomas Fourier
dma_map_XXX() functions return values DMA_MAPPING_ERROR as error values which is often ~0. The error value should be tested with dma_mapping_error(). This patch creates a new function in niu_ops to test if the mapping failed. The test is fixed in niu_rbr_add_page(), added in niu_start_xmit() and the successfully mapped pages are unmaped upon error. Fixes: ec2deec1f352 ("niu: Fix to check for dma mapping errors.") Signed-off-by: Thomas Fourier <fourier.thomas@gmail.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
14 daysplatform/x86: think-lmi: Fix sysfs group cleanupKurt Borja
Many error paths in tlmi_sysfs_init() lead to sysfs groups being removed when they were not even created. Fix this by letting the kobject core manage these groups through their kobj_type's defult_groups. Fixes: a40cd7ef22fb ("platform/x86: think-lmi: Add WMI interface support on Lenovo platforms") Cc: stable@vger.kernel.org Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Kurt Borja <kuurtb@gmail.com> Link: https://lore.kernel.org/r/20250630-lmi-fix-v3-3-ce4f81c9c481@gmail.com Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
14 daysplatform/x86: think-lmi: Fix kobject cleanupKurt Borja
In tlmi_analyze(), allocated structs with an embedded kobject are freed in error paths after the they were already initialized. Fix this by first by avoiding the initialization of kobjects in tlmi_analyze() and then by correctly cleaning them up in tlmi_release_attr() using their kset's kobject list. Fixes: a40cd7ef22fb ("platform/x86: think-lmi: Add WMI interface support on Lenovo platforms") Fixes: 30e78435d3bf ("platform/x86: think-lmi: Split kobject_init() and kobject_add() calls") Cc: stable@vger.kernel.org Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Kurt Borja <kuurtb@gmail.com> Link: https://lore.kernel.org/r/20250630-lmi-fix-v3-2-ce4f81c9c481@gmail.com Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>