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1,398,758 commits

Author SHA1 Message Date
Linus Torvalds
82ebd4e320 regulator: Fixes for v6.18
A couple of fixes for incorrect device descriptions in the rtq2208
 driver.
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Merge tag 'regulator-fix-v6.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
 "A couple of fixes for incorrect device descriptions in the rtq2208
  driver"

* tag 'regulator-fix-v6.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: rtq2208: Correct LDO2 logic judgment bits
  regulator: rtq2208: Correct buck group2 phase mapping logic
2025-11-28 14:06:05 -08:00
Linus Torvalds
9917bf8e7f io_uring-6.18-20251128
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Merge tag 'io_uring-6.18-20251128' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull io_uring fixes from Jens Axboe:

 - Ensure that vectored registered buffer imports ties the lifetime of
   those to the zero-copy send notification, not the parent request

 - Fix a bug introduced in this merge window, with the introduction of
   mixed sized CQE support

* tag 'io_uring-6.18-20251128' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
  io_uring: fix mixed cqe overflow handling
  io_uring/net: ensure vectored buffer node import is tied to notification
2025-11-28 12:42:11 -08:00
Linus Torvalds
f3b17337b9 vfs-6.18-rc8.fixes
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Merge tag 'vfs-6.18-rc8.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs fixes from Christian Brauner:

 - afs: Fix delayed allocation of a cell's anonymous key

   The allocation of a cell's anonymous key is done in a background
   thread along with other cell setup such as doing a DNS upcall. The
   normal key lookup tries to use the key description on the anonymous
   authentication key as the reference for request_key() - but it may
   not yet be set, causing an oops

 - ovl: fail ovl_lock_rename_workdir() if either target is unhashed

   As well as checking that the parent hasn't changed after getting the
   lock, the code needs to check that the dentry hasn't been unhashed.
   Otherwise overlayfs might try to rename something that has been
   removed

 - namespace: fix a reference leak in grab_requested_mnt_ns

   lookup_mnt_ns() already takes a reference on mnt_ns, and so
   grab_requested_mnt_ns() doesn't need to take an extra reference

* tag 'vfs-6.18-rc8.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  afs: Fix delayed allocation of a cell's anonymous key
  ovl: fail ovl_lock_rename_workdir() if either target is unhashed
  fs/namespace: fix reference leak in grab_requested_mnt_ns
2025-11-28 10:01:24 -08:00
Linus Torvalds
7fa0d7744c soc: fixes for 6.18, part 4
A few last minute fixes came in this week:
 
  - interrupt and gpio numbers in foud separate i.MX8 specific
    devicetree files were wrong.
 
  - The vector length property in the C906 CPU description
    used the wrong unit.
 
  - Two bugs with uninitialized stack variables in the tee
    subsystem.
 
  - Alexander Stein now maintains additional devicetree files.
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Merge tag 'soc-fixes-6.18-4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC fixes from Arnd Bergmann:
 "A few last minute fixes came in this week:

   - interrupt and gpio numbers in foud separate i.MX8 specific
     devicetree files were wrong

   - The vector length property in the C906 CPU description used the
     wrong unit

   - Two bugs with uninitialized stack variables in the tee subsystem

   - Alexander Stein now maintains additional devicetree files"

* tag 'soc-fixes-6.18-4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  riscv: dts: allwinner: d1: fix vlenb property
  MAINTAINERS: Add entry for TQ-Systems AM335 device trees
  tee: qcomtee: initialize result before use in release worker
  arm64: dts: imx8qm-mek: fix mux-controller select/enable-gpios polarity
  tee: qcomtee: fix uninitialized pointers with free attribute
  ARM: dts: nxp: imx6ul: correct SAI3 interrupt line
  arm64: dts: imx8dxl-ss-conn: swap interrupts number of eqos
  arm64: dts: imx8dxl: Correct pcie-ep interrupt number
2025-11-28 09:57:31 -08:00
Linus Torvalds
6cf62f0174 Char/Misc/IIO fixes for 6.18-rc8
Here are some much-delayed char/misc/iio driver fixes for 6.18-rc8.
 
 Fixes in here include:
   - lots of iio driver bugfixes for reported issues.
   - counter driver bugfix
   - slimbus driver bugfix
   - mei tiny bugfix
   - nvmem layout uevent bugfix
 
 All of these have been in linux-next for a while, but due to travel on
 my side, I haven't had a chance to get them to you.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.18-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char / misc / IIO fixes from Greg KH:
 "Here are some much-delayed char/misc/iio driver fixes for 6.18-rc8.

  Fixes in here include:

   - lots of iio driver bugfixes for reported issues.

   - counter driver bugfix

   - slimbus driver bugfix

   - mei tiny bugfix

   - nvmem layout uevent bugfix

  All of these have been in linux-next for a while, but due to travel on
  my side, I haven't had a chance to get them to you"

* tag 'char-misc-6.18-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (23 commits)
  nvmem: layouts: fix nvmem_layout_bus_uevent
  iio: accel: bmc150: Fix irq assumption regression
  most: usb: fix double free on late probe failure
  slimbus: ngd: Fix reference count leak in qcom_slim_ngd_notify_slaves
  firmware: stratix10-svc: fix bug in saving controller data
  mei: fix error flow in probe
  iio: st_lsm6dsx: Fixed calibrated timestamp calculation
  iio: humditiy: hdc3020: fix units for thresholds and hysteresis
  iio: humditiy: hdc3020: fix units for temperature and humidity measurement
  iio: imu: st_lsm6dsx: fix array size for st_lsm6dsx_settings fields
  iio: accel: fix ADXL355 startup race condition
  iio: adc: ad7124: fix temperature channel
  iio:common:ssp_sensors: Fix an error handling path ssp_probe()
  iio: adc: ad7280a: fix ad7280_store_balance_timer()
  iio: buffer-dmaengine: enable .get_dma_dev()
  iio: buffer-dma: support getting the DMA channel
  iio: buffer: support getting dma channel from the buffer
  iio: pressure: bmp280: correct meas_time_us calculation
  iio: adc: stm32-dfsdm: fix st,adc-alt-channel property handling
  iio: adc: ad7380: fix SPI offload trigger rate
  ...
2025-11-28 09:44:48 -08:00
Linus Torvalds
dabf127d64 Serial driver fixes for 6.18-rc8
Here are 2 serial driver fixes for reported issues for 6.18-rc8.
 
 These are:
   - fix for a much reported symbol build loop that broke the build for
     some kernel configurations.
   - amba-pl011 driver bugfix for a reported issue
 
 Both have been in linux next (the last for weeks, the first for a
 shorter amount of time), with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-6.18-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull serial driver fixes from Greg KH:
 "Here are two serial driver fixes for reported issues for 6.18-rc8.

  These are:

   - fix for a much reported symbol build loop that broke the build for
     some kernel configurations

   - amba-pl011 driver bugfix for a reported issue

  Both have been in linux next (the last for weeks, the first for a
  shorter amount of time), with no reported issues"

* tag 'tty-6.18-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  serial: 8250: Fix 8250_rsa symbol loop
  serial: amba-pl011: prefer dma_mapping_error() over explicit address checking
2025-11-28 09:16:20 -08:00
Linus Torvalds
5d324e5159 USB/Thunderbolt fixes for 6.18-rc8
Here are some last-minutes USB and Thunderbolt driver fixes and new
 device ids for 6.18-rc8.  Included in here are:
   - usb storage quirk fixup
   - xhci driver fixes for reported issues
   - usb gadget driver fixes
   - dwc3 driver fixes
   - UAS driver fixup
   - thunderbolt new device ids
   - usb-serial driver new ids
 
 All of these have been in linux-next with no reported issues, many for
 many weeks.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.18-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/Thunderbolt fixes from Greg KH:
 "Here are some last-minutes USB and Thunderbolt driver fixes and new
  device ids for 6.18-rc8. Included in here are:

   - usb storage quirk fixup

   - xhci driver fixes for reported issues

   - usb gadget driver fixes

   - dwc3 driver fixes

   - UAS driver fixup

   - thunderbolt new device ids

   - usb-serial driver new ids

  All of these have been in linux-next with no reported issues, many for
  many weeks"

* tag 'usb-6.18-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (21 commits)
  usb: gadget: renesas_usbf: Handle devm_pm_runtime_enable() errors
  USB: storage: Remove subclass and protocol overrides from Novatek quirk
  usb: uas: fix urb unmapping issue when the uas device is remove during ongoing data transfer
  usb: dwc3: Fix race condition between concurrent dwc3_remove_requests() call paths
  xhci: dbgtty: fix device unregister
  usb: storage: sddr55: Reject out-of-bound new_pba
  USB: serial: option: add support for Rolling RW101R-GL
  usb: typec: ucsi: psy: Set max current to zero when disconnected
  usb: gadget: f_eem: Fix memory leak in eem_unwrap
  usb: dwc3: pci: Sort out the Intel device IDs
  usb: dwc3: pci: add support for the Intel Nova Lake -S
  drivers/usb/dwc3: fix PCI parent check
  usb: storage: Fix memory leak in USB bulk transport
  xhci: sideband: Fix race condition in sideband unregister
  xhci: dbgtty: Fix data corruption when transmitting data form DbC to host
  xhci: fix stale flag preventig URBs after link state error is cleared
  USB: serial: ftdi_sio: add support for u-blox EVK-M101
  usb: cdns3: Fix double resource release in cdns3_pci_probe
  usb: gadget: udc: fix use-after-free in usb_gadget_state_work
  usb: renesas_usbhs: Fix synchronous external abort on unbind
  ...
2025-11-28 09:12:40 -08:00
Linus Torvalds
24a84ea4ee omap: check for pending msgs only when mbox is exclusive
mailbox-test: debugfs_create_dir error checking
 mtk: cmdq: fix DMA address handling
      gpueb: Add missing 'static' to mailbox ops struct
 pcc: don't zero error register
 th1520: fix clock imbalance on probe failure
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Merge tag 'mailbox-fixes-v6.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox

Pull mailbox fixes from Jassi Brar:

 - omap: check for pending msgs only when mbox is exclusive

 - mailbox-test: debugfs_create_dir error checking

 - mtk:
     - cmdq: fix DMA address handling
     - gpueb: Add missing 'static' to mailbox ops struct

 - pcc: don't zero error register

 - th1520: fix clock imbalance on probe failure

* tag 'mailbox-fixes-v6.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox:
  mailbox: th1520: fix clock imbalance on probe failure
  mailbox: pcc: don't zero error register
  mailbox: mtk-gpueb: Add missing 'static' to mailbox ops struct
  mailbox: mtk-cmdq: Refine DMA address handling for the command buffer
  mailbox: mailbox-test: Fix debugfs_create_dir error checking
  mailbox: omap-mailbox: Check for pending msgs only when mbox is exclusive
2025-11-28 09:09:33 -08:00
Arnd Bergmann
3ecfcf34f0 Allwinner fixes for 6.18
Just one fix to correct the "thead,vlenb" property for the RISC-V based
 D1 SoC family.
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Merge tag 'sunxi-fixes-for-6.18' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/fixes

Allwinner fixes for 6.18

Just one fix to correct the "thead,vlenb" property for the RISC-V based
D1 SoC family.

* tag 'sunxi-fixes-for-6.18' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  riscv: dts: allwinner: d1: fix vlenb property
2025-11-28 17:37:13 +01:00
Arnd Bergmann
a6737fe620 MAINTAINERS: Add entry for TQ-Systems AM335 device trees
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Merge tag 'omap-for-v6.19/maintainers-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap into arm/fixes

MAINTAINERS: Add entry for TQ-Systems AM335 device trees

* tag 'omap-for-v6.19/maintainers-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap:
  MAINTAINERS: Add entry for TQ-Systems AM335 device trees
2025-11-28 17:36:52 +01:00
Linus Torvalds
4331989728 MMC host:
- sdhci-of-dwcmshc: Fix reset handling for some variants
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Merge tag 'mmc-v6.18-rc2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC fix from Ulf Hansson:

 - sdhci-of-dwcmshc: Fix reset handling for some variants

* tag 'mmc-v6.18-rc2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: sdhci-of-dwcmshc: Promote the th1520 reset handling to ip level
2025-11-28 08:20:14 -08:00
Linus Torvalds
f849f26f77 pmdomain providers:
- mediatek: Fix spinlock recursion in probe
  - tegra: Use GENPD_FLAG_NO_STAY_ON to restore old behaviour
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Merge tag 'pmdomain-v6.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm

Pull pmdomain fixes from Ulf Hansson:

 - mediatek: Fix spinlock recursion in probe

 - tegra: Use GENPD_FLAG_NO_STAY_ON to restore old behaviour

* tag 'pmdomain-v6.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm:
  pmdomain: tegra: Add GENPD_FLAG_NO_STAY_ON flag
  pmdomains: mtk-pm-domains: Fix spinlock recursion in probe
2025-11-28 08:08:02 -08:00
Johan Hovold
e3cee98f2f mailbox: th1520: fix clock imbalance on probe failure
The purpose of the devm_add_action_or_reset() helper is to call the
action function in case adding an action ever fails so drop the clock
disable from the error path to avoid disabling the clocks twice.

Fixes: 5d4d263e1c ("mailbox: Introduce support for T-head TH1520 Mailbox driver")
Cc: Michal Wilczynski <m.wilczynski@samsung.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Michal Wilczynski <m.wilczynski@samsung.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
2025-11-28 09:47:44 -06:00
Jamie Iles
ff0e4d4c97 mailbox: pcc: don't zero error register
The error status mask for a type 3/4 subspace is used for reading the
error status, and the bitwise inverse is used for clearing the error
with the intent being to preserve any of the non-error bits.  However,
we were previously applying the mask to extract the status and then
applying the inverse to the result which ended up clearing all bits.

Instead, store the inverse mask in the preserve mask and then use that
on the original value read from the error status so that only the error
is cleared.

Fixes: c45ded7e11 ("mailbox: pcc: Add support for PCCT extended PCC subspaces(type 3/4)")
Signed-off-by: Jamie Iles <jamie.iles@oss.qualcomm.com>
Signed-off-by: Punit Agrawal <punit.agrawal@oss.qualcomm.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
2025-11-28 09:31:53 -06:00
Nicolas Frattaroli
094b53ecaa mailbox: mtk-gpueb: Add missing 'static' to mailbox ops struct
mtk_gpueb_mbox_ops should be declared static. However, due to its const
nature, this specifier was missed, as it compiled fine without it and
with no warning by the compiler.

arc-linux-gcc (GCC) 12.5.0 doesn't seem to like it however, so add the
static to fix that.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202510100629.3nGvrhEU-lkp@intel.com/
Fixes: dbca0eabb8 ("mailbox: add MediaTek GPUEB IPI mailbox")
Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
2025-11-28 09:31:53 -06:00
Jason-JH Lin
a195c7ccfb mailbox: mtk-cmdq: Refine DMA address handling for the command buffer
GCE can only fetch the command buffer address from a 32-bit register.
Some SoCs support a 35-bit command buffer address for GCE, which
requires a right shift of 3 bits before setting the address into
the 32-bit register. A comment has been added to the header of
cmdq_get_shift_pa() to explain this requirement.

To prevent the GCE command buffer address from being DMA mapped beyond
its supported bit range, the DMA bit mask for the device is set during
initialization.

Additionally, to ensure the correct shift is applied when setting or
reading the register that stores the GCE command buffer address,
new APIs, cmdq_convert_gce_addr() and cmdq_revert_gce_addr(), have
been introduced for consistent operations on this register.

The variable type for the command buffer address has been standardized
to dma_addr_t to prevent handling issues caused by type mismatches.

Fixes: 0858fde496 ("mailbox: cmdq: variablize address shift in platform")
Signed-off-by: Jason-JH Lin <jason-jh.lin@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
2025-11-28 09:31:53 -06:00
Haotian Zhang
3acf1028f5 mailbox: mailbox-test: Fix debugfs_create_dir error checking
The debugfs_create_dir() function returns ERR_PTR() on error, not NULL.
The current null-check fails to catch errors.

Use IS_ERR() to correctly check for errors.

Fixes: 8ea4484d0c ("mailbox: Add generic mechanism for testing Mailbox Controllers")
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
2025-11-28 09:31:52 -06:00
Beleswar Padhi
060e4e835f mailbox: omap-mailbox: Check for pending msgs only when mbox is exclusive
On TI K3 devices, the mailbox resides in the Always-On power domain
(LPSC_main_alwayson) and is shared among multiple processors. The
mailbox is not solely exclusive to Linux.

Currently, the suspend path checks all FIFO queues for pending messages
and blocks suspend if any are present. This behavior is unnecessary for
K3 devices, since some of the FIFOs are used for RTOS<->RTOS
communication and are independent of Linux.

For FIFOs used in Linux<->RTOS communication, any pending message would
trigger an interrupt, which naturally prevents suspend from completing.
Hence, there is no need for the mailbox driver to explicitly check for
pending messages on K3 platforms.

Introduce a device match flag to indicate whether the mailbox instance
is exclusive to Linux, and skip the pending message check for
non-exclusive instances (such as in K3).

Fixes: a49f991e74 ("arm64: dts: ti: k3-am62-verdin: Add missing cfg for TI IPC Firmware")
Closes: https://lore.kernel.org/all/sid7gtg5vay5qgicsl6smnzwg5mnneoa35cempt5ddwjvedaio@hzsgcx6oo74l/
Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
Tested-by: Hiago De Franco <hiago.franco@toradex.com>
Reviewed-by: Andrew Davis <afd@ti.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
2025-11-28 09:31:52 -06:00
David Howells
d27c712578
afs: Fix delayed allocation of a cell's anonymous key
The allocation of a cell's anonymous key is done in a background thread
along with other cell setup such as doing a DNS upcall.  In the reported
bug, this is triggered by afs_parse_source() parsing the device name given
to mount() and calling afs_lookup_cell() with the name of the cell.

The normal key lookup then tries to use the key description on the
anonymous authentication key as the reference for request_key() - but it
may not yet be set and so an oops can happen.

This has been made more likely to happen by the fix for dynamic lookup
failure.

Fix this by firstly allocating a reference name and attaching it to the
afs_cell record when the record is created.  It can share the memory
allocation with the cell name (unfortunately it can't just overlap the cell
name by prepending it with "afs@" as the cell name already has a '.'
prepended for other purposes).  This reference name is then passed to
request_key().

Secondly, the anon key is now allocated on demand at the point a key is
requested in afs_request_key() if it is not already allocated.  A mutex is
used to prevent multiple allocation for a cell.

Thirdly, make afs_request_key_rcu() return NULL if the anonymous key isn't
yet allocated (if we need it) and then the caller can return -ECHILD to
drop out of RCU-mode and afs_request_key() can be called.

Note that the anonymous key is kind of necessary to make the key lookup
cache work as that doesn't currently cache a negative lookup, but it's
probably worth some investigation to see if NULL can be used instead.

Fixes: 330e2c5148 ("afs: Fix dynamic lookup to fail on cell lookup failure")
Reported-by: syzbot+41c68824eefb67cdf00c@syzkaller.appspotmail.com
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://patch.msgid.link/800328.1764325145@warthog.procyon.org.uk
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-11-28 11:30:10 +01:00
NeilBrown
e9c70084a6
ovl: fail ovl_lock_rename_workdir() if either target is unhashed
As well as checking that the parent hasn't changed after getting the
lock we need to check that the dentry hasn't been unhashed.
Otherwise we might try to rename something that has been removed.

Reported-by: syzbot+bfc9a0ccf0de47d04e8c@syzkaller.appspotmail.com
Fixes: d2c995581c ("ovl: Call ovl_create_temp() without lock held.")
Signed-off-by: NeilBrown <neil@brown.name>
Link: https://patch.msgid.link/176429295510.634289.1552337113663461690@noble.neil.brown.name
Tested-by: syzbot+bfc9a0ccf0de47d04e8c@syzkaller.appspotmail.com
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-11-28 10:42:32 +01:00
Linus Torvalds
e538109ac7 drm fixes for 6.18 final
i915:
 - Reject async flips when PSR's selective fetch is enabled
 
 xe:
 - Fix resource leak in xe_guc_ct_init_noalloc()'s error path
 - Fix stack_depot usage without STACKDEPOT_ALWAYS_INIT
 - Fix overflow in conversion from clock tics to msec
 
 amdgpu:
 - Unified MES fix
 - HDMI fix
 - Cursor fix
 - Bightness fix
 - EDID reading improvement
 - UserQ fix
 - Cyan Skillfish IP discovery fix
 
 bridge:
 - sil902x: Fix HDMI detection
 
 imagination:
 - Update documentation
 
 sti:
 - Fix leaks in probe
 
 vga_switcheroo:
 - Avoid race condition during fbcon initialization
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Merge tag 'drm-fixes-2025-11-28' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "Last one for this round hopefully, mostly the usual suspects,
  xe/amdgpu, with some single fixes otherwise.

  There is one amdgpu HDMI blackscreen bug that came in late in the
  cycle, but it was bisected and the revert is in here.

  i915:
   - Reject async flips when PSR's selective fetch is enabled

  xe:
   - Fix resource leak in xe_guc_ct_init_noalloc()'s error path
   - Fix stack_depot usage without STACKDEPOT_ALWAYS_INIT
   - Fix overflow in conversion from clock tics to msec

  amdgpu:
   - Unified MES fix
   - HDMI fix
   - Cursor fix
   - Bightness fix
   - EDID reading improvement
   - UserQ fix
   - Cyan Skillfish IP discovery fix

  bridge:
   - sil902x: Fix HDMI detection

  imagination:
   - Update documentation

  sti:
   - Fix leaks in probe

  vga_switcheroo:
   - Avoid race condition during fbcon initialization"

* tag 'drm-fixes-2025-11-28' of https://gitlab.freedesktop.org/drm/kernel:
  drm/amdgpu: fix cyan_skillfish2 gpu info fw handling
  drm/amdgpu: attach tlb fence to the PTs update
  drm/amd/display: Increase EDID read retries
  drm/amd/display: Don't change brightness for disabled connectors
  drm/amd/display: Check NULL before accessing
  Revert "drm/amd/display: Move setup_stream_attribute"
  drm/xe: Fix conversion from clock ticks to milliseconds
  drm/xe/guc: Fix stack_depot usage
  drm/xe/guc: Fix resource leak in xe_guc_ct_init_noalloc()
  drm/i915/psr: Reject async flips when selective fetch is enabled
  drm, fbcon, vga_switcheroo: Avoid race condition in fbcon setup
  drm/amd/amdgpu: reserve vm invalidation engine for uni_mes
  drm: sti: fix device leaks at component probe
  drm/imagination: Document pvr_device.power member
  drm/bridge: sii902x: Fix HDMI detection with DRM_BRIDGE_ATTACH_NO_CONNECTOR
2025-11-27 21:06:27 -08:00
Dave Airlie
6dbcb801e1 Driver Changes:
- Fix resource leak in xe_guc_ct_init_noalloc()'s error path (Shuicheng Lin)
  - Fix stack_depot usage without STACKDEPOT_ALWAYS_INIT (Lucas)
  - Fix overflow in conversion from clock tics to msec (Harish Chegondi)
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Merge tag 'drm-xe-fixes-2025-11-27' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes

Driver Changes:
 - Fix resource leak in xe_guc_ct_init_noalloc()'s error path (Shuicheng Lin)
 - Fix stack_depot usage without STACKDEPOT_ALWAYS_INIT (Lucas)
 - Fix overflow in conversion from clock tics to msec (Harish Chegondi)

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patch.msgid.link/7ejiqjgthpqybg5svmkind2pszk4fqadxuq7rngchaaw76iept@5pn6sngqj6lk
2025-11-28 12:10:25 +10:00
Dave Airlie
26c7a181fd Short summary of fixes pull:
bridge:
 - sil902x: Fix HDMI detection
 
 imagination:
 - Update documentation
 
 sti:
 - Fix leaks in probe
 
 vga_switcheroo:
 - Avoid race condition during fbcon initialization
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Merge tag 'drm-misc-fixes-2025-11-27' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes

Short summary of fixes pull:

bridge:
- sil902x: Fix HDMI detection

imagination:
- Update documentation

sti:
- Fix leaks in probe

vga_switcheroo:
- Avoid race condition during fbcon initialization

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20251127081007.GA13578@2a02-2454-fd5e-fd00-689d-32c0-780c-bb87.dyn6.pyur.net
2025-11-28 12:04:20 +10:00
Dave Airlie
4fc3ad63dd amd-drm-fixes-6.18-2025-11-26:
amdgpu:
 - Unified MES fix
 - HDMI fix
 - Cursor fix
 - Bightness fix
 - EDID reading improvement
 - UserQ fix
 - Cyan Skillfish IP discovery fix
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Merge tag 'amd-drm-fixes-6.18-2025-11-26' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-6.18-2025-11-26:

amdgpu:
- Unified MES fix
- HDMI fix
- Cursor fix
- Bightness fix
- EDID reading improvement
- UserQ fix
- Cyan Skillfish IP discovery fix

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patch.msgid.link/20251126204925.3316684-1-alexander.deucher@amd.com
2025-11-28 11:57:04 +10:00
Linus Torvalds
aa7243aaf1 dma-mapping fixes for Linux 6.18
- two last minute fixes for the recently modified DMA API infrastructure:
 a proper handling of DMA_ATTR_MMIO in dma_iova_unlink() function (me) and
 a regression fix for the code refactoring related to P2PDMA (Pranjal
 Shrivastava)
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Merge tag 'dma-mapping-6.18-2025-11-27' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux

Pull dma-mapping fixes from Marek Szyprowski:
 "Two last minute fixes for the recently modified DMA API infrastructure:

   - proper handling of DMA_ATTR_MMIO in dma_iova_unlink() function (me)

   - regression fix for the code refactoring related to P2PDMA (Pranjal
     Shrivastava)"

* tag 'dma-mapping-6.18-2025-11-27' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux:
  dma-direct: Fix missing sg_dma_len assignment in P2PDMA bus mappings
  iommu/dma: add missing support for DMA_ATTR_MMIO for dma_iova_unlink()
2025-11-27 17:29:15 -08:00
Linus Torvalds
3fa77874b4 One more urgent ACPI support fix for 6.18
There is one more commit that needs to be reverted after reverting
 problematic commit 7a8c994cbb ("ACPI: processor: idle: Optimize
 ACPI idle driver registration"), so revert it.
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Merge tag 'acpi-6.18-rc8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fix from Rafael Wysocki:
 "One more urgent ACPI support fix for 6.18

  There is one more commit that needs to be reverted after reverting
  problematic commit 7a8c994cbb ("ACPI: processor: idle: Optimize ACPI
  idle driver registration"), so revert it"

* tag 'acpi-6.18-rc8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  Revert "ACPI: processor: Update cpuidle driver check in __acpi_processor_start()"
2025-11-27 17:25:46 -08:00
Dave Airlie
b31e2e3bb7 - Reject async flips when PSR's selective fetch is enabled (Ville)
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Merge tag 'drm-intel-fixes-2025-11-26' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes

- Reject async flips when PSR's selective fetch is enabled (Ville)

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/aScgY8QMjmyJRBX2@intel.com
2025-11-28 11:16:13 +10:00
Rafael J. Wysocki
fbf04215d9 Revert "ACPI: processor: Update cpuidle driver check in __acpi_processor_start()"
Revert commit 8a1b5d412c ("ACPI: processor: Update cpuidle driver
check in __acpi_processor_start()") which depends on commit
7a8c994cbb ("ACPI: processor: idle: Optimize ACPI idle driver
registration") that got reverted.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-11-27 20:52:55 +01:00
Linus Torvalds
e1afacb685 A patch to make sparse read handling work in msgr2 secure mode from
Slava and a couple of fixes from Ziming and myself to avoid operating
 on potentially invalid memory, all marked for stable.
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Merge tag 'ceph-for-6.18-rc8' of https://github.com/ceph/ceph-client

Pull ceph fixes from Ilya Dryomov:
 "A patch to make sparse read handling work in msgr2 secure mode from
  Slava and a couple of fixes from Ziming and myself to avoid operating
  on potentially invalid memory, all marked for stable"

* tag 'ceph-for-6.18-rc8' of https://github.com/ceph/ceph-client:
  libceph: prevent potential out-of-bounds writes in handle_auth_session_key()
  libceph: replace BUG_ON with bounds check for map->max_osd
  ceph: fix crash in process_v2_sparse_read() for encrypted directories
  libceph: drop started parameter of __ceph_open_session()
  libceph: fix potential use-after-free in have_mon_and_osd_map()
2025-11-27 11:11:03 -08:00
Linus Torvalds
1f5e808aa6 Including fixes from bluetooth and CAN. No known outstanding
regressions.
 
 Current release - regressions:
 
   - mptcp: initialize rcv_mss before calling tcp_send_active_reset()
 
   - eth: mlx5e: fix validation logic in rate limiting
 
 Previous releases - regressions:
 
   - xsk: avoid data corruption on cq descriptor number
 
   - bluetooth:
     - prevent race in socket write iter and sock bind
     - fix not generating mackey and ltk when repairing
 
   - can:
     - kvaser_usb: fix potential infinite loop in command parsers
     - rcar_canfd: fix CAN-FD mode as default
 
   - eth: veth: reduce XDP no_direct return section to fix race
 
   - eth: virtio-net: avoid unnecessary checksum calculation on guest RX
 
 Previous releases - always broken:
 
   - sched: fix TCF_LAYER_TRANSPORT handling in tcf_get_base_ptr()
 
   - bluetooth: mediatek: fix kernel crash when releasing iso interface
 
   - vhost: rewind next_avail_head while discarding descriptors
 
   - eth: r8169: fix RTL8127 hang on suspend/shutdown
 
   - eth: aquantia: add missing descriptor cache invalidation on ATL2
 
   - dsa: microchip: fix resource releases in error path
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.18-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from bluetooth and CAN. No known outstanding
  regressions.

  Current release - regressions:

   - mptcp: initialize rcv_mss before calling tcp_send_active_reset()

   - eth: mlx5e: fix validation logic in rate limiting

  Previous releases - regressions:

   - xsk: avoid data corruption on cq descriptor number

   - bluetooth:
       - prevent race in socket write iter and sock bind
       - fix not generating mackey and ltk when repairing

   - can:
       - kvaser_usb: fix potential infinite loop in command parsers
       - rcar_canfd: fix CAN-FD mode as default

   - eth:
       - veth: reduce XDP no_direct return section to fix race
       - virtio-net: avoid unnecessary checksum calculation on guest RX

  Previous releases - always broken:

   - sched: fix TCF_LAYER_TRANSPORT handling in tcf_get_base_ptr()

   - bluetooth: mediatek: fix kernel crash when releasing iso interface

   - vhost: rewind next_avail_head while discarding descriptors

   - eth:
       - r8169: fix RTL8127 hang on suspend/shutdown
       - aquantia: add missing descriptor cache invalidation on ATL2

   - dsa: microchip: fix resource releases in error path"

* tag 'net-6.18-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (47 commits)
  mptcp: Initialise rcv_mss before calling tcp_send_active_reset() in mptcp_do_fastclose().
  net: fec: do not register PPS event for PEROUT
  net: fec: do not allow enabling PPS and PEROUT simultaneously
  net: fec: do not update PEROUT if it is enabled
  net: fec: cancel perout_timer when PEROUT is disabled
  net: mctp: unconditionally set skb->dev on dst output
  net: atlantic: fix fragment overflow handling in RX path
  MAINTAINERS: separate VIRTIO NET DRIVER and add netdev
  virtio-net: avoid unnecessary checksum calculation on guest RX
  eth: fbnic: Fix counter roll-over issue
  mptcp: clear scheduled subflows on retransmit
  net: dsa: sja1105: fix SGMII linking at 10M or 100M but not passing traffic
  s390/net: list Aswin Karuvally as maintainer
  net: wwan: mhi: Keep modem name match with Foxconn T99W640
  vhost: rewind next_avail_head while discarding descriptors
  net/sched: em_canid: fix uninit-value in em_canid_match
  can: rcar_canfd: Fix CAN-FD mode as default
  xsk: avoid data corruption on cq descriptor number
  r8169: fix RTL8127 hang on suspend/shutdown
  net: sxgbe: fix potential NULL dereference in sxgbe_rx()
  ...
2025-11-27 09:18:40 -08:00
Linus Torvalds
a76dce0e54 platform-drivers-x86 for v6.18-5
Fixes:
 
 - arm64/thinkpad-t14s-ec:
 
   - Fix IRQ race condition
 
   - Sleep after EC access
 
 - intel/punit_ipc: Fix memory corruption
 
 The following is an automated shortlog grouped by driver:
 
 arm64: thinkpad-t14s-ec:
  -  fix IRQ race condition
  -  sleep after EC access
 
 intel: punit_ipc:
  -  fix memory corruption
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Merge tag 'platform-drivers-x86-v6.18-5' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull platform driver fixes from Ilpo Järvinen:

 - arm64/thinkpad-t14s-ec:
    - Fix IRQ race condition
    - Sleep after EC access

 - intel/punit_ipc: Fix memory corruption

* tag 'platform-drivers-x86-v6.18-5' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  platform/x86: intel: punit_ipc: fix memory corruption
  platform: arm64: thinkpad-t14s-ec: sleep after EC access
  platform: arm64: thinkpad-t14s-ec: fix IRQ race condition
2025-11-27 08:51:36 -08:00
Kuniyuki Iwashima
f07f4ea53e mptcp: Initialise rcv_mss before calling tcp_send_active_reset() in mptcp_do_fastclose().
syzbot reported divide-by-zero in __tcp_select_window() by
MPTCP socket. [0]

We had a similar issue for the bare TCP and fixed in commit
499350a5a6 ("tcp: initialize rcv_mss to TCP_MIN_MSS instead
of 0").

Let's apply the same fix to mptcp_do_fastclose().

[0]:
Oops: divide error: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 6068 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__tcp_select_window+0x824/0x1320 net/ipv4/tcp_output.c:3336
Code: ff ff ff 44 89 f1 d3 e0 89 c1 f7 d1 41 01 cc 41 21 c4 e9 a9 00 00 00 e8 ca 49 01 f8 e9 9c 00 00 00 e8 c0 49 01 f8 44 89 e0 99 <f7> 7c 24 1c 41 29 d4 48 bb 00 00 00 00 00 fc ff df e9 80 00 00 00
RSP: 0018:ffffc90003017640 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88807b469e40
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003017730 R08: ffff888033268143 R09: 1ffff1100664d028
R10: dffffc0000000000 R11: ffffed100664d029 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  000055557faa0500(0000) GS:ffff888126135000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f64a1912ff8 CR3: 0000000072122000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 tcp_select_window net/ipv4/tcp_output.c:281 [inline]
 __tcp_transmit_skb+0xbc7/0x3aa0 net/ipv4/tcp_output.c:1568
 tcp_transmit_skb net/ipv4/tcp_output.c:1649 [inline]
 tcp_send_active_reset+0x2d1/0x5b0 net/ipv4/tcp_output.c:3836
 mptcp_do_fastclose+0x27e/0x380 net/mptcp/protocol.c:2793
 mptcp_disconnect+0x238/0x710 net/mptcp/protocol.c:3253
 mptcp_sendmsg_fastopen+0x2f8/0x580 net/mptcp/protocol.c:1776
 mptcp_sendmsg+0x1774/0x1980 net/mptcp/protocol.c:1855
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg+0xe5/0x270 net/socket.c:742
 __sys_sendto+0x3bd/0x520 net/socket.c:2244
 __do_sys_sendto net/socket.c:2251 [inline]
 __se_sys_sendto net/socket.c:2247 [inline]
 __x64_sys_sendto+0xde/0x100 net/socket.c:2247
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f66e998f749
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffff9acedb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f66e9be5fa0 RCX: 00007f66e998f749
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007ffff9acee10 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f66e9be5fa0 R14: 00007f66e9be5fa0 R15: 0000000000000006
 </TASK>

Fixes: ae15506024 ("mptcp: fix duplicate reset on fastclose")
Reported-by: syzbot+3a92d359bc2ec6255a33@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/69260882.a70a0220.d98e3.00b4.GAE@google.com/
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20251125195331.309558-1-kuniyu@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-11-27 13:10:16 +01:00
ChiYuan Huang
8684229e19
regulator: rtq2208: Correct LDO2 logic judgment bits
The LDO2 judgement bit position should be 7, not 6.

Cc: stable@vger.kernel.org
Reported-by: Yoon Dong Min <dm.youn@telechips.com>
Fixes: b65439d901 ("regulator: rtq2208: Fix the LDO DVS capability")
Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
Link: https://patch.msgid.link/faadb009f84b88bfcabe39fc5009c7357b00bbe2.1764209258.git.cy_huang@richtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-11-27 11:41:00 +00:00
ChiYuan Huang
45cc214152
regulator: rtq2208: Correct buck group2 phase mapping logic
Correct buck group2 H and F mapping logic.

Cc: stable@vger.kernel.org
Reported-by: Yoon Dong Min <dm.youn@telechips.com>
Fixes: 1742e7e978 ("regulator: rtq2208: Fix incorrect buck converter phase mapping")
Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
Link: https://patch.msgid.link/8527ae02a72b754d89b7580a5fe7474d6f80f5c3.1764209258.git.cy_huang@richtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-11-27 11:40:59 +00:00
Paolo Abeni
36d7478664 Merge branch 'net-fec-fix-some-ptp-related-issues'
Wei Fang says:

====================
net: fec: fix some PTP related issues

There are some issues which were introduced by the commit 350749b909
("net: fec: Add support for periodic output signal of PPS"). See each
patch for more details.
====================

Link: https://patch.msgid.link/20251125085210.1094306-1-wei.fang@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-11-27 11:57:47 +01:00
Wei Fang
9a060d0fac net: fec: do not register PPS event for PEROUT
There are currently two situations that can trigger the PTP interrupt,
one is the PPS event, the other is the PEROUT event. However, the irq
handler fec_pps_interrupt() does not check the irq event type and
directly registers a PPS event into the system, but the event may be
a PEROUT event. This is incorrect because PEROUT is an output signal,
while PPS is the input of the kernel PPS system. Therefore, add a check
for the event type, if pps_enable is true, it means that the current
event is a PPS event, and then the PPS event is registered.

Fixes: 350749b909 ("net: fec: Add support for periodic output signal of PPS")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20251125085210.1094306-5-wei.fang@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-11-27 11:57:45 +01:00
Wei Fang
c0a1f3d7e1 net: fec: do not allow enabling PPS and PEROUT simultaneously
In the current driver, PPS and PEROUT use the same channel to generate
the events, so they cannot be enabled at the same time. Otherwise, the
later configuration will overwrite the earlier configuration. Therefore,
when configuring PPS, the driver will check whether PEROUT is enabled.
Similarly, when configuring PEROUT, the driver will check whether PPS
is enabled.

Fixes: 350749b909 ("net: fec: Add support for periodic output signal of PPS")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20251125085210.1094306-4-wei.fang@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-11-27 11:57:45 +01:00
Wei Fang
e97faa0c20 net: fec: do not update PEROUT if it is enabled
If the previously set PEROUT is already active, updating it will cause
the new PEROUT to start immediately instead of at the specified time.
This is because fep->reload_period is updated whithout check whether
the PEROUT is enabled, and the old PEROUT is not disabled. Therefore,
the pulse period will be updated immediately in the pulse interrupt
handler fec_pps_interrupt().

Currently, the driver does not support directly updating PEROUT and it
will make the logic be more complicated. To fix the current issue, add
a check before enabling the PEROUT, the driver will return an error if
PEROUT is enabled. If users wants to update a new PEROUT, they should
disable the old PEROUT first.

Fixes: 350749b909 ("net: fec: Add support for periodic output signal of PPS")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20251125085210.1094306-3-wei.fang@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-11-27 11:57:45 +01:00
Wei Fang
50caa74468 net: fec: cancel perout_timer when PEROUT is disabled
The PEROUT allows the user to set a specified future time to output the
periodic signal. If the future time is far from the current time, the FEC
driver will use hrtimer to configure PEROUT one second before the future
time. However, the hrtimer will not be canceled if the PEROUT is disabled
before the hrtimer expires. So the PEROUT will be configured when the
hrtimer expires, which is not as expected. Therefore, cancel the hrtimer
in fec_ptp_pps_disable() to fix this issue.

Fixes: 350749b909 ("net: fec: Add support for periodic output signal of PPS")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20251125085210.1094306-2-wei.fang@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-11-27 11:57:45 +01:00
Jeremy Kerr
b3e528a581 net: mctp: unconditionally set skb->dev on dst output
On transmit, we are currently relying on skb->dev being set by
mctp_local_output() when we first set up the skb destination fields.
However, forwarded skbs do not use the local_output path, so will retain
their incoming netdev as their ->dev on tx. This does not work when
we're forwarding between interfaces.

Set skb->dev unconditionally in the transmit path, to allow for proper
forwarding.

We keep the skb->dev initialisation in mctp_local_output(), as we use it
for fragmentation.

Fixes: 269936db5e ("net: mctp: separate routing database from routing operations")
Suggested-by: Vince Chang <vince_chang@aspeedtech.com>
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Link: https://patch.msgid.link/20251125-dev-forward-v1-1-54ecffcd0616@codeconstruct.com.au
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-11-27 11:39:12 +01:00
ziming zhang
7fce830ecd libceph: prevent potential out-of-bounds writes in handle_auth_session_key()
The len field originates from untrusted network packets. Boundary
checks have been added to prevent potential out-of-bounds writes when
decrypting the connection secret or processing service tickets.

[ idryomov: changelog ]

Cc: stable@vger.kernel.org
Signed-off-by: ziming zhang <ezrakiez@gmail.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2025-11-27 09:59:49 +01:00
ziming zhang
ec3797f043 libceph: replace BUG_ON with bounds check for map->max_osd
OSD indexes come from untrusted network packets. Boundary checks are
added to validate these against map->max_osd.

[ idryomov: drop BUG_ON in ceph_get_primary_affinity(), minor cosmetic
  edits ]

Cc: stable@vger.kernel.org
Signed-off-by: ziming zhang <ezrakiez@gmail.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2025-11-27 09:59:42 +01:00
Viacheslav Dubeyko
43962db4a6 ceph: fix crash in process_v2_sparse_read() for encrypted directories
The crash in process_v2_sparse_read() for fscrypt-encrypted directories
has been reported. Issue takes place for Ceph msgr2 protocol in secure
mode. It can be reproduced by the steps:

sudo mount -t ceph :/ /mnt/cephfs/ -o name=admin,fs=cephfs,ms_mode=secure

(1) mkdir /mnt/cephfs/fscrypt-test-3
(2) cp area_decrypted.tar /mnt/cephfs/fscrypt-test-3
(3) fscrypt encrypt --source=raw_key --key=./my.key /mnt/cephfs/fscrypt-test-3
(4) fscrypt lock /mnt/cephfs/fscrypt-test-3
(5) fscrypt unlock --key=my.key /mnt/cephfs/fscrypt-test-3
(6) cat /mnt/cephfs/fscrypt-test-3/area_decrypted.tar
(7) Issue has been triggered

[  408.072247] ------------[ cut here ]------------
[  408.072251] WARNING: CPU: 1 PID: 392 at net/ceph/messenger_v2.c:865
ceph_con_v2_try_read+0x4b39/0x72f0
[  408.072267] Modules linked in: intel_rapl_msr intel_rapl_common
intel_uncore_frequency_common intel_pmc_core pmt_telemetry pmt_discovery
pmt_class intel_pmc_ssram_telemetry intel_vsec kvm_intel joydev kvm irqbypass
polyval_clmulni ghash_clmulni_intel aesni_intel rapl input_leds psmouse
serio_raw i2c_piix4 vga16fb bochs vgastate i2c_smbus floppy mac_hid qemu_fw_cfg
pata_acpi sch_fq_codel rbd msr parport_pc ppdev lp parport efi_pstore
[  408.072304] CPU: 1 UID: 0 PID: 392 Comm: kworker/1:3 Not tainted 6.17.0-rc7+
[  408.072307] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.17.0-5.fc42 04/01/2014
[  408.072310] Workqueue: ceph-msgr ceph_con_workfn
[  408.072314] RIP: 0010:ceph_con_v2_try_read+0x4b39/0x72f0
[  408.072317] Code: c7 c1 20 f0 d4 ae 50 31 d2 48 c7 c6 60 27 d5 ae 48 c7 c7 f8
8e 6f b0 68 60 38 d5 ae e8 00 47 61 fe 48 83 c4 18 e9 ac fc ff ff <0f> 0b e9 06
fe ff ff 4c 8b 9d 98 fd ff ff 0f 84 64 e7 ff ff 89 85
[  408.072319] RSP: 0018:ffff88811c3e7a30 EFLAGS: 00010246
[  408.072322] RAX: ffffed1024874c6f RBX: ffffea00042c2b40 RCX: 0000000000000f38
[  408.072324] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[  408.072325] RBP: ffff88811c3e7ca8 R08: 0000000000000000 R09: 00000000000000c8
[  408.072326] R10: 00000000000000c8 R11: 0000000000000000 R12: 00000000000000c8
[  408.072327] R13: dffffc0000000000 R14: ffff8881243a6030 R15: 0000000000003000
[  408.072329] FS:  0000000000000000(0000) GS:ffff88823eadf000(0000)
knlGS:0000000000000000
[  408.072331] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  408.072332] CR2: 000000c0003c6000 CR3: 000000010c106005 CR4: 0000000000772ef0
[  408.072336] PKRU: 55555554
[  408.072337] Call Trace:
[  408.072338]  <TASK>
[  408.072340]  ? sched_clock_noinstr+0x9/0x10
[  408.072344]  ? __pfx_ceph_con_v2_try_read+0x10/0x10
[  408.072347]  ? _raw_spin_unlock+0xe/0x40
[  408.072349]  ? finish_task_switch.isra.0+0x15d/0x830
[  408.072353]  ? __kasan_check_write+0x14/0x30
[  408.072357]  ? mutex_lock+0x84/0xe0
[  408.072359]  ? __pfx_mutex_lock+0x10/0x10
[  408.072361]  ceph_con_workfn+0x27e/0x10e0
[  408.072364]  ? metric_delayed_work+0x311/0x2c50
[  408.072367]  process_one_work+0x611/0xe20
[  408.072371]  ? __kasan_check_write+0x14/0x30
[  408.072373]  worker_thread+0x7e3/0x1580
[  408.072375]  ? __pfx__raw_spin_lock_irqsave+0x10/0x10
[  408.072378]  ? __pfx_worker_thread+0x10/0x10
[  408.072381]  kthread+0x381/0x7a0
[  408.072383]  ? __pfx__raw_spin_lock_irq+0x10/0x10
[  408.072385]  ? __pfx_kthread+0x10/0x10
[  408.072387]  ? __kasan_check_write+0x14/0x30
[  408.072389]  ? recalc_sigpending+0x160/0x220
[  408.072392]  ? _raw_spin_unlock_irq+0xe/0x50
[  408.072394]  ? calculate_sigpending+0x78/0xb0
[  408.072395]  ? __pfx_kthread+0x10/0x10
[  408.072397]  ret_from_fork+0x2b6/0x380
[  408.072400]  ? __pfx_kthread+0x10/0x10
[  408.072402]  ret_from_fork_asm+0x1a/0x30
[  408.072406]  </TASK>
[  408.072407] ---[ end trace 0000000000000000 ]---
[  408.072418] Oops: general protection fault, probably for non-canonical
address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI
[  408.072984] KASAN: null-ptr-deref in range [0x0000000000000000-
0x0000000000000007]
[  408.073350] CPU: 1 UID: 0 PID: 392 Comm: kworker/1:3 Tainted: G        W
6.17.0-rc7+ #1 PREEMPT(voluntary)
[  408.073886] Tainted: [W]=WARN
[  408.074042] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.17.0-5.fc42 04/01/2014
[  408.074468] Workqueue: ceph-msgr ceph_con_workfn
[  408.074694] RIP: 0010:ceph_msg_data_advance+0x79/0x1a80
[  408.074976] Code: fc ff df 49 8d 77 08 48 c1 ee 03 80 3c 16 00 0f 85 07 11 00
00 48 ba 00 00 00 00 00 fc ff df 49 8b 5f 08 48 89 de 48 c1 ee 03 <0f> b6 14 16
84 d2 74 09 80 fa 03 0f 8e 0f 0e 00 00 8b 13 83 fa 03
[  408.075884] RSP: 0018:ffff88811c3e7990 EFLAGS: 00010246
[  408.076305] RAX: ffff8881243a6388 RBX: 0000000000000000 RCX: 0000000000000000
[  408.076909] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff8881243a6378
[  408.077466] RBP: ffff88811c3e7a20 R08: 0000000000000000 R09: 00000000000000c8
[  408.078034] R10: ffff8881243a6388 R11: 0000000000000000 R12: ffffed1024874c71
[  408.078575] R13: dffffc0000000000 R14: ffff8881243a6030 R15: ffff8881243a6378
[  408.079159] FS:  0000000000000000(0000) GS:ffff88823eadf000(0000)
knlGS:0000000000000000
[  408.079736] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  408.080039] CR2: 000000c0003c6000 CR3: 000000010c106005 CR4: 0000000000772ef0
[  408.080376] PKRU: 55555554
[  408.080513] Call Trace:
[  408.080630]  <TASK>
[  408.080729]  ceph_con_v2_try_read+0x49b9/0x72f0
[  408.081115]  ? __pfx_ceph_con_v2_try_read+0x10/0x10
[  408.081348]  ? _raw_spin_unlock+0xe/0x40
[  408.081538]  ? finish_task_switch.isra.0+0x15d/0x830
[  408.081768]  ? __kasan_check_write+0x14/0x30
[  408.081986]  ? mutex_lock+0x84/0xe0
[  408.082160]  ? __pfx_mutex_lock+0x10/0x10
[  408.082343]  ceph_con_workfn+0x27e/0x10e0
[  408.082529]  ? metric_delayed_work+0x311/0x2c50
[  408.082737]  process_one_work+0x611/0xe20
[  408.082948]  ? __kasan_check_write+0x14/0x30
[  408.083156]  worker_thread+0x7e3/0x1580
[  408.083331]  ? __pfx__raw_spin_lock_irqsave+0x10/0x10
[  408.083557]  ? __pfx_worker_thread+0x10/0x10
[  408.083751]  kthread+0x381/0x7a0
[  408.083922]  ? __pfx__raw_spin_lock_irq+0x10/0x10
[  408.084139]  ? __pfx_kthread+0x10/0x10
[  408.084310]  ? __kasan_check_write+0x14/0x30
[  408.084510]  ? recalc_sigpending+0x160/0x220
[  408.084708]  ? _raw_spin_unlock_irq+0xe/0x50
[  408.084917]  ? calculate_sigpending+0x78/0xb0
[  408.085138]  ? __pfx_kthread+0x10/0x10
[  408.085335]  ret_from_fork+0x2b6/0x380
[  408.085525]  ? __pfx_kthread+0x10/0x10
[  408.085720]  ret_from_fork_asm+0x1a/0x30
[  408.085922]  </TASK>
[  408.086036] Modules linked in: intel_rapl_msr intel_rapl_common
intel_uncore_frequency_common intel_pmc_core pmt_telemetry pmt_discovery
pmt_class intel_pmc_ssram_telemetry intel_vsec kvm_intel joydev kvm irqbypass
polyval_clmulni ghash_clmulni_intel aesni_intel rapl input_leds psmouse
serio_raw i2c_piix4 vga16fb bochs vgastate i2c_smbus floppy mac_hid qemu_fw_cfg
pata_acpi sch_fq_codel rbd msr parport_pc ppdev lp parport efi_pstore
[  408.087778] ---[ end trace 0000000000000000 ]---
[  408.088007] RIP: 0010:ceph_msg_data_advance+0x79/0x1a80
[  408.088260] Code: fc ff df 49 8d 77 08 48 c1 ee 03 80 3c 16 00 0f 85 07 11 00
00 48 ba 00 00 00 00 00 fc ff df 49 8b 5f 08 48 89 de 48 c1 ee 03 <0f> b6 14 16
84 d2 74 09 80 fa 03 0f 8e 0f 0e 00 00 8b 13 83 fa 03
[  408.089118] RSP: 0018:ffff88811c3e7990 EFLAGS: 00010246
[  408.089357] RAX: ffff8881243a6388 RBX: 0000000000000000 RCX: 0000000000000000
[  408.089678] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff8881243a6378
[  408.090020] RBP: ffff88811c3e7a20 R08: 0000000000000000 R09: 00000000000000c8
[  408.090360] R10: ffff8881243a6388 R11: 0000000000000000 R12: ffffed1024874c71
[  408.090687] R13: dffffc0000000000 R14: ffff8881243a6030 R15: ffff8881243a6378
[  408.091035] FS:  0000000000000000(0000) GS:ffff88823eadf000(0000)
knlGS:0000000000000000
[  408.091452] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  408.092015] CR2: 000000c0003c6000 CR3: 000000010c106005 CR4: 0000000000772ef0
[  408.092530] PKRU: 55555554
[  417.112915]
==================================================================
[  417.113491] BUG: KASAN: slab-use-after-free in
__mutex_lock.constprop.0+0x1522/0x1610
[  417.114014] Read of size 4 at addr ffff888124870034 by task kworker/2:0/4951

[  417.114587] CPU: 2 UID: 0 PID: 4951 Comm: kworker/2:0 Tainted: G      D W
6.17.0-rc7+ #1 PREEMPT(voluntary)
[  417.114592] Tainted: [D]=DIE, [W]=WARN
[  417.114593] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.17.0-5.fc42 04/01/2014
[  417.114596] Workqueue: events handle_timeout
[  417.114601] Call Trace:
[  417.114602]  <TASK>
[  417.114604]  dump_stack_lvl+0x5c/0x90
[  417.114610]  print_report+0x171/0x4dc
[  417.114613]  ? __pfx__raw_spin_lock_irqsave+0x10/0x10
[  417.114617]  ? kasan_complete_mode_report_info+0x80/0x220
[  417.114621]  kasan_report+0xbd/0x100
[  417.114625]  ? __mutex_lock.constprop.0+0x1522/0x1610
[  417.114628]  ? __mutex_lock.constprop.0+0x1522/0x1610
[  417.114630]  __asan_report_load4_noabort+0x14/0x30
[  417.114633]  __mutex_lock.constprop.0+0x1522/0x1610
[  417.114635]  ? queue_con_delay+0x8d/0x200
[  417.114638]  ? __pfx___mutex_lock.constprop.0+0x10/0x10
[  417.114641]  ? __send_subscribe+0x529/0xb20
[  417.114644]  __mutex_lock_slowpath+0x13/0x20
[  417.114646]  mutex_lock+0xd4/0xe0
[  417.114649]  ? __pfx_mutex_lock+0x10/0x10
[  417.114652]  ? ceph_monc_renew_subs+0x2a/0x40
[  417.114654]  ceph_con_keepalive+0x22/0x110
[  417.114656]  handle_timeout+0x6b3/0x11d0
[  417.114659]  ? _raw_spin_unlock_irq+0xe/0x50
[  417.114662]  ? __pfx_handle_timeout+0x10/0x10
[  417.114664]  ? queue_delayed_work_on+0x8e/0xa0
[  417.114669]  process_one_work+0x611/0xe20
[  417.114672]  ? __kasan_check_write+0x14/0x30
[  417.114676]  worker_thread+0x7e3/0x1580
[  417.114678]  ? __pfx__raw_spin_lock_irqsave+0x10/0x10
[  417.114682]  ? __pfx_sched_setscheduler_nocheck+0x10/0x10
[  417.114687]  ? __pfx_worker_thread+0x10/0x10
[  417.114689]  kthread+0x381/0x7a0
[  417.114692]  ? __pfx__raw_spin_lock_irq+0x10/0x10
[  417.114694]  ? __pfx_kthread+0x10/0x10
[  417.114697]  ? __kasan_check_write+0x14/0x30
[  417.114699]  ? recalc_sigpending+0x160/0x220
[  417.114703]  ? _raw_spin_unlock_irq+0xe/0x50
[  417.114705]  ? calculate_sigpending+0x78/0xb0
[  417.114707]  ? __pfx_kthread+0x10/0x10
[  417.114710]  ret_from_fork+0x2b6/0x380
[  417.114713]  ? __pfx_kthread+0x10/0x10
[  417.114715]  ret_from_fork_asm+0x1a/0x30
[  417.114720]  </TASK>

[  417.125171] Allocated by task 2:
[  417.125333]  kasan_save_stack+0x26/0x60
[  417.125522]  kasan_save_track+0x14/0x40
[  417.125742]  kasan_save_alloc_info+0x39/0x60
[  417.125945]  __kasan_slab_alloc+0x8b/0xb0
[  417.126133]  kmem_cache_alloc_node_noprof+0x13b/0x460
[  417.126381]  copy_process+0x320/0x6250
[  417.126595]  kernel_clone+0xb7/0x840
[  417.126792]  kernel_thread+0xd6/0x120
[  417.126995]  kthreadd+0x85c/0xbe0
[  417.127176]  ret_from_fork+0x2b6/0x380
[  417.127378]  ret_from_fork_asm+0x1a/0x30

[  417.127692] Freed by task 0:
[  417.127851]  kasan_save_stack+0x26/0x60
[  417.128057]  kasan_save_track+0x14/0x40
[  417.128267]  kasan_save_free_info+0x3b/0x60
[  417.128491]  __kasan_slab_free+0x6c/0xa0
[  417.128708]  kmem_cache_free+0x182/0x550
[  417.128906]  free_task+0xeb/0x140
[  417.129070]  __put_task_struct+0x1d2/0x4f0
[  417.129259]  __put_task_struct_rcu_cb+0x15/0x20
[  417.129480]  rcu_do_batch+0x3d3/0xe70
[  417.129681]  rcu_core+0x549/0xb30
[  417.129839]  rcu_core_si+0xe/0x20
[  417.130005]  handle_softirqs+0x160/0x570
[  417.130190]  __irq_exit_rcu+0x189/0x1e0
[  417.130369]  irq_exit_rcu+0xe/0x20
[  417.130531]  sysvec_apic_timer_interrupt+0x9f/0xd0
[  417.130768]  asm_sysvec_apic_timer_interrupt+0x1b/0x20

[  417.131082] Last potentially related work creation:
[  417.131305]  kasan_save_stack+0x26/0x60
[  417.131484]  kasan_record_aux_stack+0xae/0xd0
[  417.131695]  __call_rcu_common+0xcd/0x14b0
[  417.131909]  call_rcu+0x31/0x50
[  417.132071]  delayed_put_task_struct+0x128/0x190
[  417.132295]  rcu_do_batch+0x3d3/0xe70
[  417.132478]  rcu_core+0x549/0xb30
[  417.132658]  rcu_core_si+0xe/0x20
[  417.132808]  handle_softirqs+0x160/0x570
[  417.132993]  __irq_exit_rcu+0x189/0x1e0
[  417.133181]  irq_exit_rcu+0xe/0x20
[  417.133353]  sysvec_apic_timer_interrupt+0x9f/0xd0
[  417.133584]  asm_sysvec_apic_timer_interrupt+0x1b/0x20

[  417.133921] Second to last potentially related work creation:
[  417.134183]  kasan_save_stack+0x26/0x60
[  417.134362]  kasan_record_aux_stack+0xae/0xd0
[  417.134566]  __call_rcu_common+0xcd/0x14b0
[  417.134782]  call_rcu+0x31/0x50
[  417.134929]  put_task_struct_rcu_user+0x58/0xb0
[  417.135143]  finish_task_switch.isra.0+0x5d3/0x830
[  417.135366]  __schedule+0xd30/0x5100
[  417.135534]  schedule_idle+0x5a/0x90
[  417.135712]  do_idle+0x25f/0x410
[  417.135871]  cpu_startup_entry+0x53/0x70
[  417.136053]  start_secondary+0x216/0x2c0
[  417.136233]  common_startup_64+0x13e/0x141

[  417.136894] The buggy address belongs to the object at ffff888124870000
                which belongs to the cache task_struct of size 10504
[  417.138122] The buggy address is located 52 bytes inside of
                freed 10504-byte region [ffff888124870000, ffff888124872908)

[  417.139465] The buggy address belongs to the physical page:
[  417.140016] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0
pfn:0x124870
[  417.140789] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0
pincount:0
[  417.141519] memcg:ffff88811aa20e01
[  417.141874] anon flags:
0x17ffffc0000040(head|node=0|zone=2|lastcpupid=0x1fffff)
[  417.142600] page_type: f5(slab)
[  417.142922] raw: 0017ffffc0000040 ffff88810094f040 0000000000000000
dead000000000001
[  417.143554] raw: 0000000000000000 0000000000030003 00000000f5000000
ffff88811aa20e01
[  417.143954] head: 0017ffffc0000040 ffff88810094f040 0000000000000000
dead000000000001
[  417.144329] head: 0000000000000000 0000000000030003 00000000f5000000
ffff88811aa20e01
[  417.144710] head: 0017ffffc0000003 ffffea0004921c01 00000000ffffffff
00000000ffffffff
[  417.145106] head: ffffffffffffffff 0000000000000000 00000000ffffffff
0000000000000008
[  417.145485] page dumped because: kasan: bad access detected

[  417.145859] Memory state around the buggy address:
[  417.146094]  ffff88812486ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
fc
[  417.146439]  ffff88812486ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
fc
[  417.146791] >ffff888124870000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb
fb
[  417.147145]                                      ^
[  417.147387]  ffff888124870080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
fb
[  417.147751]  ffff888124870100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
fb
[  417.148123]
==================================================================

First of all, we have warning in get_bvec_at() because
cursor->total_resid contains zero value. And, finally,
we have crash in ceph_msg_data_advance() because
cursor->data is NULL. It means that get_bvec_at()
receives not initialized ceph_msg_data_cursor structure
because data is NULL and total_resid contains zero.

Moreover, we don't have likewise issue for the case of
Ceph msgr1 protocol because ceph_msg_data_cursor_init()
has been called before reading sparse data.

This patch adds calling of ceph_msg_data_cursor_init()
in the beginning of process_v2_sparse_read() with
the goal to guarantee that logic of reading sparse data
works correctly for the case of Ceph msgr2 protocol.

Cc: stable@vger.kernel.org
Link: https://tracker.ceph.com/issues/73152
Signed-off-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2025-11-27 09:59:34 +01:00
Linus Torvalds
765e56e41a smb client mount fix
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Merge tag 'v6.18rc7-SMB-client-fix' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fix from Steve French:
 "smb client multiuser (with cifscreds) mount fix"

* tag 'v6.18rc7-SMB-client-fix' of git://git.samba.org/sfrench/cifs-2.6:
  smb: client: fix memory leak in cifs_construct_tcon()
2025-11-26 20:22:20 -08:00
Jakub Kicinski
8ec205e879 linux-can-fixes-for-6.18-20251126
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Merge tag 'linux-can-fixes-for-6.18-20251126' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can

Marc Kleine-Budde says:

====================
pull-request: can 2025-11-26

this is a pull request of 8 patches for net/main.

Seungjin Bae provides a patch for the kvaser_usb driver to fix a
potential infinite loop in the USB data stream command parser.

Thomas Mühlbacher's patch for the sja1000 driver IRQ handler's max
loop handling, that might lead to unhandled interrupts.

3 patches by me for the gs_usb driver fix handling of failed transmit
URBs and add checking of the actual length of received URBs before
accessing the data.

The next patch is by me and is a port of Thomas Mühlbacher's patch
(fix IRQ handler's max loop handling, that might lead to unhandled
interrupts.) to the sun4i_can driver.

Biju Das provides a patch for the rcar_canfd driver to fix the CAN-FD
mode setting.

The last patch is by Shaurya Rane for the em_canid filter to ensure
that the complete CAN frame is present in the linear data buffer
before accessing it.

* tag 'linux-can-fixes-for-6.18-20251126' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can:
  net/sched: em_canid: fix uninit-value in em_canid_match
  can: rcar_canfd: Fix CAN-FD mode as default
  can: sun4i_can: sun4i_can_interrupt(): fix max irq loop handling
  can: gs_usb: gs_usb_receive_bulk_callback(): check actual_length before accessing data
  can: gs_usb: gs_usb_receive_bulk_callback(): check actual_length before accessing header
  can: gs_usb: gs_usb_xmit_callback(): fix handling of failed transmitted URBs
  can: sja1000: fix max irq loop handling
  can: kvaser_usb: leaf: Fix potential infinite loop in command parsers
====================

Link: https://patch.msgid.link/20251126155713.217105-1-mkl@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-26 19:56:00 -08:00
Jiefeng Zhang
5ffcb7b890 net: atlantic: fix fragment overflow handling in RX path
The atlantic driver can receive packets with more than MAX_SKB_FRAGS (17)
fragments when handling large multi-descriptor packets. This causes an
out-of-bounds write in skb_add_rx_frag_netmem() leading to kernel panic.

The issue occurs because the driver doesn't check the total number of
fragments before calling skb_add_rx_frag(). When a packet requires more
than MAX_SKB_FRAGS fragments, the fragment index exceeds the array bounds.

Fix by assuming there will be an extra frag if buff->len > AQ_CFG_RX_HDR_SIZE,
then all fragments are accounted for. And reusing the existing check to
prevent the overflow earlier in the code path.

This crash occurred in production with an Aquantia AQC113 10G NIC.

Stack trace from production environment:
```
RIP: 0010:skb_add_rx_frag_netmem+0x29/0xd0
Code: 90 f3 0f 1e fa 0f 1f 44 00 00 48 89 f8 41 89
ca 48 89 d7 48 63 ce 8b 90 c0 00 00 00 48 c1 e1 04 48 01 ca 48 03 90
c8 00 00 00 <48> 89 7a 30 44 89 52 3c 44 89 42 38 40 f6 c7 01 75 74 48
89 fa 83
RSP: 0018:ffffa9bec02a8d50 EFLAGS: 00010287
RAX: ffff925b22e80a00 RBX: ffff925ad38d2700 RCX:
fffffffe0a0c8000
RDX: ffff9258ea95bac0 RSI: ffff925ae0a0c800 RDI:
0000000000037a40
RBP: 0000000000000024 R08: 0000000000000000 R09:
0000000000000021
R10: 0000000000000848 R11: 0000000000000000 R12:
ffffa9bec02a8e24
R13: ffff925ad8615570 R14: 0000000000000000 R15:
ffff925b22e80a00
FS: 0000000000000000(0000)
GS:ffff925e47880000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff9258ea95baf0 CR3: 0000000166022004 CR4:
0000000000f72ef0
PKRU: 55555554
Call Trace:
<IRQ>
aq_ring_rx_clean+0x175/0xe60 [atlantic]
? aq_ring_rx_clean+0x14d/0xe60 [atlantic]
? aq_ring_tx_clean+0xdf/0x190 [atlantic]
? kmem_cache_free+0x348/0x450
? aq_vec_poll+0x81/0x1d0 [atlantic]
? __napi_poll+0x28/0x1c0
? net_rx_action+0x337/0x420
```

Fixes: 6aecbba12b ("net: atlantic: add check for MAX_SKB_FRAGS")
Changes in v4:
- Add Fixes: tag to satisfy patch validation requirements.

Changes in v3:
- Fix by assuming there will be an extra frag if buff->len > AQ_CFG_RX_HDR_SIZE,
  then all fragments are accounted for.

Signed-off-by: Jiefeng Zhang <jiefeng.z.zhang@gmail.com>
Link: https://patch.msgid.link/20251126032249.69358-1-jiefeng.z.zhang@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-26 19:52:49 -08:00
Jon Kohler
384c1a4e27 MAINTAINERS: separate VIRTIO NET DRIVER and add netdev
Changes to virtio network stack should be cc'd to netdev DL, separate
it into its own group to add netdev in addition to virtualization DL.

Signed-off-by: Jon Kohler <jon@nutanix.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://patch.msgid.link/20251126015750.2200267-1-jon@nutanix.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-26 19:48:34 -08:00
Jon Kohler
1cd1c47234 virtio-net: avoid unnecessary checksum calculation on guest RX
Commit a2fb4bc4e2 ("net: implement virtio helpers to handle UDP
GSO tunneling.") inadvertently altered checksum offload behavior
for guests not using UDP GSO tunneling.

Before, tun_put_user called tun_vnet_hdr_from_skb, which passed
has_data_valid = true to virtio_net_hdr_from_skb.

After, tun_put_user began calling tun_vnet_hdr_tnl_from_skb instead,
which passes has_data_valid = false into both call sites.

This caused virtio hdr flags to not include VIRTIO_NET_HDR_F_DATA_VALID
for SKBs where skb->ip_summed == CHECKSUM_UNNECESSARY. As a result,
guests are forced to recalculate checksums unnecessarily.

Restore the previous behavior by ensuring has_data_valid = true is
passed in the !tnl_gso_type case, but only from tun side, as
virtio_net_hdr_tnl_from_skb() is used also by the virtio_net driver,
which in turn must not use VIRTIO_NET_HDR_F_DATA_VALID on tx.

cc: stable@vger.kernel.org
Fixes: a2fb4bc4e2 ("net: implement virtio helpers to handle UDP GSO tunneling.")
Signed-off-by: Jon Kohler <jon@nutanix.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Link: https://patch.msgid.link/20251125222754.1737443-1-jon@nutanix.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-26 19:45:54 -08:00
Mohsin Bashir
6d66e093e0 eth: fbnic: Fix counter roll-over issue
Fix a potential counter roll-over issue in fbnic_mbx_alloc_rx_msgs()
when calculating descriptor slots. The issue occurs when head - tail
results in a large positive value (unsigned) and the compiler interprets
head - tail - 1 as a signed value.

Since FBNIC_IPC_MBX_DESC_LEN is a power of two, use a masking operation,
which is a common way of avoiding this problem when dealing with these
sort of ring space calculations.

Fixes: da3cde0820 ("eth: fbnic: Add FW communication mechanism")
Signed-off-by: Mohsin Bashir <mohsin.bashr@gmail.com>
Link: https://patch.msgid.link/20251125211704.3222413-1-mohsin.bashr@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-26 18:25:52 -08:00
Paolo Abeni
27fd028601 mptcp: clear scheduled subflows on retransmit
When __mptcp_retrans() kicks-in, it schedules one or more subflows for
retransmission, but such subflows could be actually left alone if there
is no more data to retransmit and/or in case of concurrent fallback.

Scheduled subflows could be processed much later in time, i.e. when new
data will be transmitted, leading to bad subflow selection.

Explicitly clear all scheduled subflows before leaving the
retransmission function.

Fixes: ee2708aeda ("mptcp: use get_retrans wrapper")
Cc: stable@vger.kernel.org
Reported-by: Filip Pokryvka <fpokryvk@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20251125-net-mptcp-clear-sched-rtx-v1-1-1cea4ad2165f@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-26 18:24:35 -08:00