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1,464,947 commits

Author SHA1 Message Date
Manish Khadka
46c8beeccd HID: letsketch: fix UAF on inrange_timer at driver unbind
letsketch_driver does not provide a .remove callback, but
letsketch_probe() arms a per-device timer:

    timer_setup(&data->inrange_timer, letsketch_inrange_timeout, 0);

The timer is re-armed from letsketch_raw_event() with a 100 ms
timeout on every pen-in-range report, and its callback dereferences
data->input_tablet to deliver a synthetic BTN_TOOL_PEN release.

letsketch_data is allocated with devm_kzalloc(), and its input_dev
fields are devm-allocated via letsketch_setup_input_tablet().  On
device unbind (USB unplug or rmmod), the HID core runs its default
teardown and devm cleanup frees both letsketch_data and the input
devices.  Because no .remove callback exists, nothing drains the
timer first: if raw_event armed it within ~100 ms of the unbind,
the pending timer fires on freed memory.  This is a UAF read of
data and of data->input_tablet, followed by input_report_key() /
input_sync() into the freed input_dev.

The same problem can occur on the probe error path: if
hid_hw_start() enabled I/O on an always-poll-quirk device and then
failed, raw_event may have armed the timer before devm releases
data.

Fix by adding a .remove callback that calls hid_hw_stop() first.
hid_hw_stop() synchronously kills the URBs that deliver raw_event(),
so once it returns no path can re-arm the timer.  timer_shutdown_sync()
then drains any in-flight callback and permanently disables further
mod_timer() calls.  Apply the same timer_shutdown_sync() in the probe
error path so the timer is guaranteed not to outlive data.

Fixes: 33a5c27934 ("HID: Add new Letsketch tablet driver")
Cc: stable@vger.kernel.org
Signed-off-by: Manish Khadka <maskmemanish@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-06-29 10:43:23 +02:00
André Draszik
032a6f6ce2 dma-fence: use correct callback in dma_fence_timeline_name()
dma_fence_timeline_name() is a wrapper around
dma_fence_ops::get_timeline_name(). Since the blamed commit below, it
calls an incorrect callback.

Update it to restore functionality by calling the intended callback.

Fixes: 62918542b7 ("dma-fence: Fix sparse warnings due __rcu annotations")
Cc: <stable@vger.kernel.org> # v7.1+
[tursulin: added cc stable]
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Philipp Stanner <phasta@kernel.org>
Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net>
Link: https://lore.kernel.org/r/20260618-linux-drm_crtc_fix-v1-1-801f29c9853d@linaro.org
2026-06-29 09:10:02 +01:00
jiazhenyuan
7f53bf79bd xfs: fix AGFL extent count calculation in xrep_agfl_fill
In xrep_agfl_fill(), the call to xagb_bitmap_set() passes
'agbno - 1' as the length argument. However, xagb_bitmap_set()
expects a length (number of blocks), not an end block number.
Passing 'agbno - 1' causes used_extents to record an incorrect
range.

Fix this by calculating the correct length as 'agbno - start',
which represents the actual number of blocks filled into the AGFL.

Signed-off-by: jiazhenyuan <jiazhenyuan@uniontech.com>
Fixes: 014ad53732 ("xfs: use per-AG bitmaps to reap unused AG metadata blocks during repair")
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
2026-06-29 09:54:22 +02:00
Christoph Hellwig
19dc95d4b6 xfs: simplify the failure path in xfs_buf_alloc_vmalloc
Look at the __GFP_NORETRY flag set for readahead so that we don't
have to pass both the gfp_t and the flags in.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
2026-06-29 09:37:06 +02:00
Christoph Hellwig
0144bcf619 xfs: fix incorrect use of gfp flags in xfs_buf_alloc_backing_mem
xfs_buf_alloc_backing_mem currently has two issues with how the GFP_
flags are set:

  - when aiming for a large folio allocation, the gfp mask is adjusted
    to try less hard, but these flags then persist for the vmalloc
    allocation, which is bogus.
  - the __GFP_NOFAIL for small allocations is also applied when readahead
    force __GFP_NORETRY which doesn't make any sense.

Fix this by only applying __GFP_NOFAIL when __GFP_NORETRY is not set,
and by reordering the code so that the large folio gfp adjustments
are performed locally just for that allocation.

Fixes: 94c78cfa3b ("xfs: convert buffer cache to use high order folios")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
2026-06-29 09:37:06 +02:00
Christoph Hellwig
27d7d15184 xfs: lift setting __GFP_NOFAIL from xfs_buf_alloc_kmem to the caller
The current __GFP_NOFAIL setting is wrong in some cases.  Prepare
for fixing that by giving control to the caller.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
2026-06-29 09:37:05 +02:00
Christoph Hellwig
c752838874 xfs: split up xfs_buf_alloc_backing_mem
Split out helpers for folio and vmalloc allocations to prepare for a bug
fix.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
2026-06-29 09:37:05 +02:00
Bartosz Golaszewski
2ed2e359de Linux 7.2-rc1
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Merge tag 'v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into gpio/for-current

Linux 7.2-rc1
2026-06-29 09:30:53 +02:00
Johan Hovold
5c1ea24b53 USB: serial: digi_acceleport: fix hard lockup on disconnect
If submitting the OOB write urb fails persistently (e.g if the device is
being disconnected) the driver would loop indefinitely with interrupts
disabled.

Check for urb submission errors when sending OOB commands to avoid
hanging if, for example, open(), set_termios() or close() races with a
physical disconnect.

This is issue was flagged by Sashiko when reviewing an unrelated change
to the driver.

Link: https://sashiko.dev/#/patchset/20260610132232.356139-1-johan%40kernel.org?part=1
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2026-06-29 08:52:34 +02:00
Johan Hovold
24ca1fea8f USB: serial: digi_acceleport: fix write buffer corruption
The digi_write_inb_command() is supposed to wait for the write urb to
become available or return an error, but instead it updates the transfer
buffer and tries to resubmit the urb on timeout.

To make things worse, for commands like break control where no timeout
is used, the driver would corrupt the urb immediately due to a broken
jiffies comparison (on 32-bit machines this takes five minutes of uptime
to trigger due to INITIAL_JIFFIES).

Fix this by adding the missing return on timeout and waiting
indefinitely when no timeout has been specified as intended.

This issue was (sort of) flagged by Sashiko when reviewing an unrelated
change to the driver.

Link: https://sashiko.dev/#/patchset/20260610132232.356139-1-johan%40kernel.org?part=11
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2026-06-29 08:52:34 +02:00
Bjorn Andersson
a74a98f956 arm64: dts: qcom: glymur: fix QUP serial engine IRQs
The Geni serial-engine interrupts from QUP wrapper 0 all fall in ESPI
INTIDs space. While some of the i2c instances has gotten their
interrupt specifiers corrected, even the other functions on the same
serial-engines are wrong.

Ensure that all the serial engine interrupts for QUP wrapper 0 matches
the datasheet.

Assisted-by: Codex:GPT-5.5
Fixes: 41b6e8db40 ("arm64: dts: qcom: Introduce Glymur base dtsi")
Signed-off-by: Bjorn Andersson <bjorn.andersson@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260611-glymur-geni-irqs-v1-1-269428faeb6d@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2026-06-28 20:02:17 -05:00
Bjorn Andersson
52c7084c8f arm64: dts: qcom: glymur: fix PCIe SMMU interrupts
The PCIe SMMUv3 wired interrupts are routed to GIC extended SPI INTIDs
4100, 4098 and 4096. Describe them as ESPIs with the ESPI-relative
interrupt numbers instead of regular SPIs 964, 962 and 960.

Assisted-by: Codex:GPT-5.5
Fixes: 41b6e8db40 ("arm64: dts: qcom: Introduce Glymur base dtsi")
Signed-off-by: Bjorn Andersson <bjorn.andersson@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260611-glymur-pcie-smmu-espi-v1-1-5effbaa3e1af@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2026-06-28 20:02:15 -05:00
Randy Dunlap
667d0fb321 driver core: add missing kernel-doc for union members
The use of __SYSFS_FUNCTION_ALTERNATIVE() adds an anonymous union (or
struct if CONFIG_CFI=y).*

Describe the additional struct/union members to avoid docs build
warnings.

Warning: include/linux/device.h:117 struct member 'show_const' not described in 'device_attribute'
Warning: include/linux/device.h:117 struct member 'store_const' not described in 'device_attribute'

*: kernel-doc ignores CONFIG_ symbols in source files; it is using the
first definition of __SYSFS_FUNCTION_ALTERNATIVE(), which is struct
instead of union.

Fixes: 434506b86a ("driver core: Allow the constification of device attributes")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20260623190023.407781-1-rdunlap@infradead.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2026-06-29 00:59:24 +02:00
Linus Torvalds
dc59e4fea9 Linux 7.2-rc1 v7.2-rc1 2026-06-28 12:01:31 -07:00
Linus Torvalds
0716f9b933 NTB updates include an EPF bug fix to prevent an invalid unmap during
device removal, along with documentation fixes and minor AMD driver
 cleanups.
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Merge tag 'ntb-7.2' of https://github.com/jonmason/ntb

Pull NTB updates from Jon Mason:
 "An EPF bug fix to prevent an invalid unmap during device removal,
  along with documentation fixes and minor AMD driver cleanups"

* tag 'ntb-7.2' of https://github.com/jonmason/ntb:
  ntb: amd: Use named initializer for pci_device_id::driver_data
  NTB: fix kernel-doc warnings in ntb.h
  NTB: epf: Avoid pci_iounmap() with offset when PEER_SPAD and CONFIG share BAR
  ntb_hw_amd: Fix incorrect debug message in link disable path
2026-06-28 07:46:12 -07:00
Linus Torvalds
8b69c04758 Input updates for v7.2-rc0-2
- Updates to Synaptics RMI4 driver to fix potential OOB accesses in
   F30 and F3A keymap handling
 
 - A workaround in Synaptics RMI4 to tolerate buggy firmware on some
   touchpads (e.g. ThinkPad T14 Gen 1) that report incomplete register
   descriptor structures, preventing probe failures
 
 - A revert of an incorrect register descriptor address calculation in
   Synaptics RMI4 driver
 
 - A fix for a regression in HP GSC PS/2 (gscps2) driver where the
   receive buffer write index was not advanced, leaving keyboard and
   mouse unusable.
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Merge tag 'input-for-v7.2-rc0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

Pull more input updates from Dmitry Torokhov:

 - Updates to Synaptics RMI4 driver to fix potential OOB accesses in F30
   and F3A keymap handling

 - A workaround in Synaptics RMI4 to tolerate buggy firmware on some
   touchpads (e.g. ThinkPad T14 Gen 1) that report incomplete register
   descriptor structures, preventing probe failures

 - A revert of an incorrect register descriptor address calculation in
   Synaptics RMI4 driver

 - A fix for a regression in HP GSC PS/2 (gscps2) driver where the
   receive buffer write index was not advanced, leaving keyboard and
   mouse unusable.

* tag 'input-for-v7.2-rc0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: gscps2 - advance receive buffer write index
  Input: rmi4 - tolerate short register descriptor structure
  Revert "Input: rmi4 - fix register descriptor address calculation"
  Input: synaptics-rmi4 - bound the F30 keymap to the GPIO/LED count
  Input: synaptics-rmi4 - bound the F3A keymap to the GPIO count
2026-06-28 04:40:05 -07:00
Sven Eckelmann
26560c4a03
batman-adv: dat: ensure accessible eth_hdr proto field
When batadv_get_vid() accesses the proto field of the ethernet header, it
is not checking if the data itself is accessible. The caller is responsible
for it. But in contrast to other call sites, batadv_dat_get_vid() and its
caller didn't make sure this is true. This could have caused an
out-of-bounds access.

Cc: stable@vger.kernel.org
Reported-by: Sashiko <sashiko-bot@kernel.org>
Fixes: be1db4f661 ("batman-adv: make the Distributed ARP Table vlan aware")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
2026-06-28 11:49:04 +02:00
Sven Eckelmann
cdf3b5af2b
batman-adv: bla: reacquire gw address after skb realloc
The pskb_may_pull() called by batadv_bla_is_backbone_gw() could reallocate
the buffer behind the skb. Variables which were pointing to the old buffer
need to be reassigned to avoid an use-after-free.

Cc: stable@vger.kernel.org
Fixes: 9e794b6bf4 ("batman-adv: drop unicast packets from other backbone gw")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
2026-06-28 09:58:34 +02:00
Sven Eckelmann
48067b2ae4
batman-adv: dat: acquire ARP hw source only after skb realloc
The pskb_may_pull() called by batadv_get_vid() could reallocate the buffer
behind the skb. Variables which were pointing to the old buffer need to be
reassigned to avoid an use-after-free.

Cc: stable@vger.kernel.org
Fixes: b61ec31c85 ("batman-adv: Snoop DHCPACKs for DAT")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
2026-06-28 09:58:29 +02:00
Sven Eckelmann
77880a3be8
batman-adv: gw: acquire ethernet header only after skb realloc
The pskb_may_pull() called by batadv_get_vid() could reallocate the buffer
behind the skb. Variables which were pointing to the old buffer need to be
reassigned to avoid an use-after-free.

Cc: stable@vger.kernel.org
Fixes: 6c413b1c22 ("batman-adv: send every DHCP packet as bat-unicast")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
2026-06-28 09:58:22 +02:00
Sven Eckelmann
7141990add
batman-adv: access unicast_ttvn skb->data only after skb realloc
The pskb_may_pull() called by batadv_get_vid() could reallocate the buffer
behind the skb. Variables which were pointing to the old buffer need to be
reassigned to avoid an use-after-free.

This was done correctly for the ethernet header but missed for the
unicast_packet pointer.

Cc: stable@vger.kernel.org
Reported-by: Sashiko <sashiko-bot@kernel.org>
Fixes: c018ad3de6 ("batman-adv: add the VLAN ID attribute to the TT entry")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
2026-06-28 09:58:13 +02:00
Sven Eckelmann
035e1fed89
batman-adv: retrieve ethhdr after potential skb realloc on RX
pskb_may_pull() in batadv_interface_rx() could reallocate the buffer behind
the skb. Variables which were pointing to the old buffer need to be
reassigned to avoid an use-after-free.

This was done correctly for the VLAN header but missed for the ethernet
header which is later used for the TT and AP isolation handling.

Cc: stable@vger.kernel.org
Reported-by: Sashiko <sashiko-bot@kernel.org>
Fixes: c6c8fea297 ("net: Add batman-adv meshing protocol")
Fixes: c78296665c ("batman-adv: Check skb size before using encapsulated ETH+VLAN header")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
2026-06-28 07:56:46 +02:00
Lorenzo Bianconi
32f1c2bbb2 net: airoha: dma map xmit frags with skb_frag_dma_map()
Map xmit skb fragments using skb_frag_dma_map() instead of
dma_map_single(skb_frag_address()). skb_frag_address() relies on
page_address() to obtain a kernel virtual address, which is not
guaranteed to work for all page types (e.g. highmem pages or
user-pinned pages from MSG_ZEROCOPY).
skb_frag_dma_map() maps the fragment directly via its struct page and
offset through dma_map_page(), avoiding the need for a kernel virtual
address entirely.
Introduce an enum airoha_dma_map_type to track how each queue entry was
mapped (single vs page), so that the matching unmap function is called
on completion and in error paths.

Fixes: 23020f0493 ("net: airoha: Introduce ethernet support for EN7581 SoC")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Harshitha Ramamurthy <hramamurthy@google.com>
Link: https://patch.msgid.link/20260625-airoha-eth-skb_frag_dma_map-v1-1-31d9e460aae6@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-06-27 15:44:30 -07:00
Linus Walleij
d4be5f6f90 net: dsa: Fix skb ownership in taggers
The tag_8021q.c tagger calls vlan_insert_tag() in dsa_8021q_xmit().
vlan_insert_tag() will consume the skb with kfree_skb() on failure
and return NULL.

When NULL is returned as error code to ->xmit() in dsa_user_xmit()
it will free the same skb again leading to a double-free.

The idea of dsa_user_xmit() and dsa_switch_rcv() dropping the skb
they held before the call to ->xmit() and ->rcv() is conceptually
wrong: the pattern elsewhere in the networking code is that consumers
drop their skb:s on failure.

Modify the ->xmit() and ->rcv() call sites to not drop the SKB if
the taggers return NULL from any of these calls. Move those drops into
the taggers so every callback error path that retains ownership consumes
the skb before returning NULL.

Keep the existing helper ownership rules: VLAN insertion helpers already
free on failure (this is the case in tag_8021q.c), while deferred
transmit paths either transfer the skb reference to worker context or
hold a worker reference with skb_get() and drop the caller's reference.

For SJA1105 meta RX, transfer the buffered stampable skb under the meta
lock and return NULL while the skb is waiting for its meta frame: the
skb is not dropped in this case.

NOTICE: Backporting patches to taggers (e.g. for stable kernels) after
this point cannot be mechanical or they will introduce double
kfree_skb().

Reported-by: Sashiko AI Review <sashiko-bot@kernel.org>
Closes: https://lore.kernel.org/r/20260610153952.1685895-1-kuba@kernel.org/
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: David Yang <mmyangfl@gmail.com> # yt921x
Acked-by: Kurt Kanzenbach <kurt@linutronix.de> # hellcreek
Reviewed-by: Wei Fang <wei.fang@nxp.com> # netc
Signed-off-by: Linus Walleij <linusw@kernel.org>
Link: https://patch.msgid.link/20260625-dsa-fix-free-skb-v5-1-b5931e4cbdb0@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-06-27 15:44:12 -07:00
Xin Long
414c5447fe sctp: add INIT verification after cookie unpacking
In SCTP handshake, the INIT chunk is initially processed by the server
and embedded into the cookie carried in INIT-ACK. The client then
returns this cookie via COOKIE-ECHO, where the server unpacks it and
reconstructs the original INIT chunk.

When cookie authentication is enabled, the cookie contents are protected
against tampering, so reusing the unpacked INIT without re-verification
is safe.

However, when cookie authentication is disabled, the reconstructed INIT
can no longer be trusted. In this case, the INIT must be explicitly
validated after unpacking to avoid processing potentially tampered data.

Add sctp_verify_init() checks after cookie unpacking in COOKIE-ECHO
processing paths (sctp_sf_do_5_1D_ce() and sctp_sf_do_5_2_4_dupcook())
when cookie_auth_enable is disabled. On failure, the new association is
freed and the packet is discarded.

Also tighten cookie validation in sctp_unpack_cookie() by verifying the
embedded chunk type is SCTP_CID_INIT before treating it as an INIT
chunk.

Finally, update sctp_verify_init() to validate parameter bounds using
the actual embedded INIT length instead of chunk->chunk_end, since the
INIT stored in COOKIE-ECHO may not span the entire chunk buffer.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Link: https://patch.msgid.link/ebcbbac574815b0850f371b4bdb02f2e602b94d3.1782341592.git.lucien.xin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-06-27 15:43:40 -07:00
Breno Leitao
45f1458a85 netpoll: fix a use-after-free on shutdown path
There is a use-after-free error on netpoll, which is clearly detected by
KASAN.

      BUG: KASAN: slab-use-after-free in _raw_spin_lock_irqsave+0x3b/0x80
      Read of size 1 at addr ... by task kworker/9:1
      Workqueue: events queue_process
      Call Trace:
       skb_dequeue+0x1e/0xb0
       queue_process+0x2c/0x600
       process_scheduled_works+0x4b6/0x850
       worker_thread+0x414/0x5a0
      Allocated by task 242:
       __netpoll_setup+0x201/0x4a0
       netpoll_setup+0x249/0x550
       enabled_store+0x32f/0x380
      Freed by task 0:
       kfree+0x1b7/0x540
       rcu_core+0x3f8/0x7a0

The problem happens when there is a pending TX worker running in
parallel with the cleanup path.

This is what happens on netpoll shutdown path:

1) __netpoll_cleanup() is called
2) set dev->npinfo to NULL
3) call_rcu() with rcu_cleanup_netpoll_info()
  3.1) rcu_cleanup_netpoll_info() tries to cancel all workers with
       cancel_delayed_work(), but doesn't wait for the worker to finish
4) and kfree(npinfo);

Because 3.1) doesn't really cancel the work, as the comment says "we
can't call cancel_delayed_work_sync here, as we are in softirq", the TX
worker can run after 4).

Tl;DR: queue_process() is not an RCU reader, it reaches npinfo through
the work item via container_of().

Use disable_delayed_work_sync() to ensure the worker is completely
stopped and prevent any future re-arming attempts. Once npinfo is set
to NULL, senders will bail out and not queue new work. The disable flag
ensures any in-flight re-arming attempts also fail silently.

In the future, we can do the cleanup inline here without needing the
npinfo->rcu rcu_head, but that is net-next material.

Cc: stable@vger.kernel.org
Fixes: 38e6bc185d ("netpoll: make __netpoll_cleanup non-block")
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20260625-netpoll_rcu_fix-v2-1-0748ffac1e98@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-06-27 15:39:59 -07:00
Yousef Alhouseen
2b9f5ef534 sctp: fix SCTP_RESET_STREAMS stream list length limit
SCTP_RESET_STREAMS carries a flexible array of u16 stream IDs, but the
optlen clamps treat USHRT_MAX as a byte count and then multiply
sizeof(__u16) by the fixed header size.

That caps the copied and validated option buffer at about 64 KiB, which
rejects valid requests containing more than about half of the u16 stream
ID range.

Use struct_size_t() for the maximum struct sctp_reset_streams layout
instead, so the bound matches the flexible array described by
srs_number_streams.

Fixes: 5960cefab9 ("sctp: add a ceiling to optlen in some sockopts")
Acked-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Yousef Alhouseen <alhouseenyousef@gmail.com>
Link: https://patch.msgid.link/20260625142354.2600-1-alhouseenyousef@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-06-27 15:39:35 -07:00
Wei Fang
555c5475e7 net: enetc: check the number of BDs needed for xdp_frame
The size of xdp_redirect_arr array is ENETC_MAX_SKB_FRAGS. However, the
number of fragments contained in xdp_frame may be greater than or equal
to ENETC_MAX_SKB_FRAGS, which will cause the access to xdp_redirect_arr
to be out of bounds.

Fixes: 9d2b68cc10 ("net: enetc: add support for XDP_REDIRECT")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20260626073244.2168214-1-wei.fang@oss.nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-06-27 15:18:36 -07:00
Ratheesh Kannoth
56114690ff MAINTAINERS: Update Marvell octeontx2 driver maintainers
Update the maintainer entries for the Marvell OcteonTX (RVU) drivers to
reflect recent organizational changes.

Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>
Link: https://patch.msgid.link/20260626044819.3004811-1-rkannoth@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-06-27 15:08:09 -07:00
Linus Torvalds
780d569e6c pwm: Changes for v7.2-rc1 (2nd batch)
Two more fixes that I managed to put into the public branch merged into
 next before my first PR but missed to include them in it. The first
 change is a relevant change that fixes misconfigurations due to a
 variable overflow. The 2nd is only cosmetic but very obviously an
 improvement.
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Merge tag 'pwm/for-7.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux

Pull pwm fixes from Uwe Kleine-König:
 "Two more fixes that I managed to put into the public branch merged
  into next before my first pull request but missed to include them in
  it.

  The first change is a relevant change that fixes misconfigurations due
  to a variable overflow. The second is only cosmetic but very obviously
  an improvement"

* tag 'pwm/for-7.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux:
  pwm: rzg2l-gpt: Add missing newlines to dev_err_probe() messages
  pwm: rzg2l-gpt: Fix period_ticks type from u32 to u64
2026-06-27 13:48:12 -07:00
Linus Torvalds
f21df87320 additional fbdev fixes & cleanups for 7.2-rc1:
Fixes:
 - fbcon: fix NULL pointer dereference for a console without vc_data [Ian Bridges]
 - fbdev: fix fb_new_modelist to prevent null-ptr-deref in fb_videomode_to_var [Ian Bridges]
 
 Fixes in failure paths:
 - pm2fb: unwind write-cache setting on probe failure [Haoxiang Li]
 - goldfishfb: fail pan display on base-update timeout [Pengpeng Hou]
 - viafb: return error on DMA copy time-out [Pengpeng Hou]
 - fbcon: fix out-of-bounds read in error path of fbcon_do_set_font() [Mingyu Wang]
 - fbdev: fix modelist use-after-free in store_modes() [Ian Bridges]
 
 Code cleanup:
 - vga16fb: clean up platform_device_id table [Uwe Kleine-König]
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Merge tag 'fbdev-for-7.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev

Pull more fbdev updates from Helge Deller:
 "Fixes for generic fbdev & fbcon code for the handling of modelists
  and preventing a potential NULL ptr dereference in the console code.

  Fix missed cleanups in the error path of various fbdev drivers.

  And Uwe Kleine-König contributed a cleanup patch to use named
  initializers in the vga16fb driver"

* tag 'fbdev-for-7.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
  fbdev: Fix fb_new_modelist to prevent null-ptr-deref in fb_videomode_to_var
  fbcon: fix NULL pointer dereference for a console without vc_data
  fbdev: fix use-after-free in store_modes()
  fbdev: viafb: return an error when DMA copy times out
  fbdev: goldfishfb: fail pan display on base-update timeout
  fbdev: fbcon: fix out-of-bounds read in err_out of fbcon_do_set_font()
  fbdev: pm2fb: unwind WC setup on probe failure
  fbdev: vga16fb: Drop unused assignment of platform_device_id driver data
2026-06-27 12:52:20 -07:00
Linus Torvalds
14923571e7 sound fixes for 7.2-rc1
A collection of small bug fixes accumulated over the last week.
 Most are device-specific fixes while there are a few core fixes as
 well.
 
 Here are the highlights:
 
 ALSA Core:
 - A fix for an uninitialised heap leak in ALSA sequencer core
 - A fix for error handling/resource leak in compress-offload API
 
 USB-audio:
 - A teardown-ordering fix in USB MIDI 2.0 to prevent use-after-free
 - Bounds and length checks for packet data in Native Instruments caiaq
   / Traktor Kontrol input parsers
 - Avoidance of expensive kobject path lookups in DualSense controller
   matches
 - Robustness/memory leak fixes for Qualcomm USB offload driver
 - Focusrite Control Protocol (FCP) NULL-pointer dereference fix and a
   new device quirk (ISA C8X)
 - Device-specific quirks for Yamaha CDS3000 and SC13A
 
 HD-Audio:
 - A bunch of quirks and mute/mic-mute LED fixups for various laptops
   (Acer, Clevo, Lenovo, HP)
 
 ASoC & SoundWire:
 - Avoid failing card registration if the device_link creation fails
 - A workaround for SoundWire randconfig build failures by making
   helper functions static inline
 - Corrected MCLK reference validation for CS530x codecs
 - Clean up of untested, problematic guard() macro replacements in
   Rockchip SAI driver
 - Fix for eDMA maxburst misalignment with channel count in Freescale
   ASRC
 - Miscellaneous hardware-specific fixes (qcom, rt5650, tlv320aic3x,
   tas2781/3)
 
 Others:
 - Bounds and length checks for packet data in Apple iSight
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Merge tag 'sound-fix-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of small bug fixes accumulated over the last week.
  Most are device-specific fixes while there are a few core fixes as
  well.

  Here are the highlights:

  ALSA Core:
   - A fix for an uninitialised heap leak in ALSA sequencer core
   - A fix for error handling/resource leak in compress-offload API

  USB-audio:
   - A teardown-ordering fix in USB MIDI 2.0 to prevent use-after-free
   - Bounds and length checks for packet data in Native Instruments
     caiaq / Traktor Kontrol input parsers
   - Avoidance of expensive kobject path lookups in DualSense controller
     matches
   - Robustness/memory leak fixes for Qualcomm USB offload driver
   - Focusrite Control Protocol (FCP) NULL-pointer dereference fix and a
     new device quirk (ISA C8X)
   - Device-specific quirks for Yamaha CDS3000 and SC13A

  HD-Audio:
   - A bunch of quirks and mute/mic-mute LED fixups for various laptops
     (Acer, Clevo, Lenovo, HP)

  ASoC & SoundWire:
   - Avoid failing card registration if the device_link creation fails
   - A workaround for SoundWire randconfig build failures by making
     helper functions static inline
   - Corrected MCLK reference validation for CS530x codecs
   - Clean up of untested, problematic guard() macro replacements in
     Rockchip SAI driver
   - Fix for eDMA maxburst misalignment with channel count in Freescale
     ASRC
   - Miscellaneous hardware-specific fixes (qcom, rt5650, tlv320aic3x,
     tas2781/3)

  Others:
   - Bounds and length checks for packet data in Apple iSight"

* tag 'sound-fix-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (46 commits)
  ALSA: FCP: Fix NULL pointer dereference in interface lookup
  ALSA: hda/realtek: Update Acer Nitro ANV15-41 quirk to enable mute LED
  ASoC: fsl_asrc_dma: fix eDMA maxburst misalignment with channel count
  ASoC: codecs: pcm512x: only print info once on no sclk
  ASoC: tas2781: Update default register address to TAS2563
  ALSA: firewire: isight: bound the sample count to the packet payload
  ALSA: usb-audio: qcom: Free QMI handle
  ALSA: hda: Add Lenovo Legion 7i 16IAX7 17AA3874 quirk
  ALSA: usb-audio: avoid kobject path lookup in DualSense match
  ALSA: hda/realtek: Add quirk for Acer Nitro ANV15-41
  ASoC: soc-core: Don't fail if device_link could not be created
  ASoC: rockchip: rockchip_sai: #include <linux/platform_device.h> explicitly
  ALSA: seq: Fix uninitialised heap leak in snd_seq_event_dup()
  ASoC: rt5575: Use __le32 for SPI burst write address
  ASoC: tas2783: Update loaded firmware names to linux-firmware 20260519
  ASoC: SDCA: Validate written enum value in ge_put_enum_double()
  ASoC: realtek: Add back local call to sdw_show_ping_status()
  ASoC: ti: Add back local call to sdw_show_ping_status()
  ASoC: max98373: Add back local call to sdw_show_ping_status()
  ASoC: es9356: Add back local call to sdw_show_ping_status()
  ...
2026-06-27 12:15:23 -07:00
Linus Torvalds
4bf54e4752 i2c-fixes for v7.2-rc1
- i801: fix error path in smbus transfer
 - mpc: fix timeout calculation
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Merge tag 'i2c-fixes-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux

Pull i2c fixes from Andi Shyti:

 - i801: fix error path in smbus transfer

 - mpc: fix timeout calculation

* tag 'i2c-fixes-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux:
  i2c: i801: fix hardware state machine corruption in error path
  i2c: mpc: Fix timeout calculations
2026-06-27 11:33:30 -07:00
Linus Torvalds
da7ca04e33 RTC for 7.2
Subsystem:
  - add rtc_read_next_alarm() to read next expiring timer
 
 Drivers:
  - ds1307: handle OSF for ds1337/ds1339/ds3231, add clock provider for ds1307,
    fix wday for rx8130
  - m41t93: DT support, alarm, clock provider, watchdog support
  - mv: add suspend/resume support for wakeup
  - pcap: remove driver
  - renesas-rtca3: many fixes
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Merge tag 'rtc-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "Most of the work and improvements are for features of the m41t93.

  The ds1307 also gets support for OSF (Oscillator Stop Flag) for
  new variants.

  The pcap driver is being removed as the Motorola EZX support was
  removed a while ago.

  Subsystem:
   - add rtc_read_next_alarm() to read next expiring timer

  Drivers:
   - ds1307: handle OSF for ds1337/ds1339/ds3231, add clock provider for
     ds1307, fix wday for rx8130
   - m41t93: DT support, alarm, clock provider, watchdog support
   - mv: add suspend/resume support for wakeup
   - pcap: remove driver
   - renesas-rtca3: many fixes"

* tag 'rtc-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (36 commits)
  rtc: ds1307: update reference to removed CONFIG_RTC_DRV_DS1307_HWMON
  platform/x86: amd-pmc: Fix S0i3 wakeup with alarmtimer
  rtc: s35390a: fix typo in comment
  rtc: cmos: unregister HPET IRQ handler on probe failure
  rtc: ds1307: Fix off-by-one issue with wday for rx8130
  dt-bindings: rtc: ds1307: Add epson,rx8901
  rtc: bq32000: add delay between RTC reads
  rtc: m41t93: Add watchdog support
  rtc: m41t93: Add square wave clock provider support
  rtc: m41t93: Add alarm support
  rtc: m41t93: migrate to regmap api for register access
  rtc: m41t93: add device tree support
  dt-bindings: rtc: Add ST m41t93
  rtc: ds1307: add support for clock provider in ds1307
  rtc: mv: add suspend/resume support for wakeup
  rtc: aspeed: add AST2700 compatible
  dt-bindings: rtc: add ASPEED AST2700 compatible
  rtc: interface: fix typos in rtc_handle_legacy_irq() documentation
  rtc: msc313: fix NULL deref in shared IRQ handler at probe
  rtc: remove unused pcap driver
  ...
2026-06-27 11:00:18 -07:00
Linus Torvalds
6ca693ea90 fscrypt fixes for 7.2
- Fix a bug where in a specific edge case, file contents en/decryption
   could be done with the wrong data unit size.
 
 - Fix the data structure used for keeping track of users that have added
   an fscrypt key to be a simple list instead of a 'struct key' keyring.
 
   This fixes issues such as a lockdep report found by syzbot and
   possible unintended interactions with the keyctl() system calls.
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Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux

Pull fscrypt fixes from Eric Biggers:

 - Fix a bug where in a specific edge case, file contents en/decryption
   could be done with the wrong data unit size

 - Fix the data structure used for keeping track of users that have
   added an fscrypt key to be a simple list instead of a 'struct key'
   keyring

   This fixes issues such as a lockdep report found by syzbot and
   possible unintended interactions with the keyctl() system calls

* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux:
  fscrypt: Replace mk_users keyring with simple list
  fscrypt: Fix key setup in edge case with multiple data unit sizes
2026-06-27 09:20:16 -07:00
Xu Rao
d86d4f8cbb Input: gscps2 - advance receive buffer write index
Commit 44f9200699 ("Input: gscps2 - use guard notation when
acquiring spinlock") moved the receive loop into gscps2_read_data()
and gscps2_report_data().

While moving the code, it preserved the writes to
buffer[ps2port->append], but omitted the following producer index
update from the original loop:

	ps2port->append = (ps2port->append + 1) & BUFFER_SIZE;

As a result, append never advances. Since gscps2_report_data() only
reports bytes while act != append, the receive buffer always appears
empty and no keyboard or mouse data reaches the serio core.

Restore the omitted index update.

Fixes: 44f9200699 ("Input: gscps2 - use guard notation when acquiring spinlock")
Cc: stable@vger.kernel.org # 6.13+
Signed-off-by: Xu Rao <raoxu@uniontech.com>
Link: https://patch.msgid.link/460B5655BA580C60+20260624094739.850306-1-raoxu@uniontech.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-06-26 22:42:56 -07:00
Dmitry Torokhov
2d6d33e45d Input: rmi4 - tolerate short register descriptor structure
Some touchpads (e.g. ThinkPad T14 Gen 1) have buggy firmware that reports
a register descriptor structure size that is too small for the number of
registers it claims to have in the presence map. The remaining bytes in
the structure are 0, which with the new strict bounds checking causes the
parser to fail with -EIO, aborting the device probe.

Tolerate such short reads by dropping the remaining (unparseable or
0-size) registers from the list instead of failing the probe,
preventing the driver from trying to use them.

Fixes: 0adb483fbf ("Input: rmi4 - refactor register descriptor parsing")
Reported-by: Barry K. Nathan <barryn@pobox.com>
Tested-by: Barry K. Nathan <barryn@pobox.com>
Cc: stable@vger.kernel.org
Assisted-by: Antigravity:gemini-3.5-flash
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-06-26 22:23:40 -07:00
Dmitry Torokhov
d85589879f Revert "Input: rmi4 - fix register descriptor address calculation"
The register descriptor presence register is a packet register, which
means its bytes share a single RMI address. It does not occupy
consecutive addresses, and the register structure that follows it
is located at the next RMI address (presence_address + 1), not
(presence_address + presence_size).

Revert the incorrect address calculation introduced in commit
a98518e724.

Reported-by: "Barry K. Nathan" <barryn@pobox.com>
Tested-by: "Barry K. Nathan" <barryn@pobox.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-06-26 22:22:42 -07:00
Uwe Kleine-König (The Capable Hub)
d1c3d45f87 ntb: amd: Use named initializer for pci_device_id::driver_data
The current list initialisation depends on the well hidden two zeros in
the PCI_VDEVICE macro. Instead use a named initialisation that is more
robust and easier to understand.

Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
2026-06-26 22:18:34 -04:00
Randy Dunlap
8df969463b NTB: fix kernel-doc warnings in ntb.h
Correct a function name and function parameter name to avoid
kernel-doc warnings:

Warning: include/linux/ntb.h:575 expecting prototype for
 ntb_default_port_count(). Prototype was for ntb_default_peer_port_count()
 instead
Warning: include/linux/ntb.h:590 function parameter 'pidx' not
 described in 'ntb_default_peer_port_number'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
2026-06-26 22:18:34 -04:00
Koichiro Den
d876153680 NTB: epf: Avoid pci_iounmap() with offset when PEER_SPAD and CONFIG share BAR
When BAR_PEER_SPAD and BAR_CONFIG share one PCI BAR, the module teardown
path ends up calling pci_iounmap() on the same iomem with some offset,
which is unnecessary and triggers a kernel warning like the following:

  Trying to vunmap() nonexistent vm area (0000000069a5ffe8)
  WARNING: mm/vmalloc.c:3470 at vunmap+0x58/0x68, CPU#5: modprobe/2937
  [...]
  Call trace:
   vunmap+0x58/0x68 (P)
   iounmap+0x34/0x48
   pci_iounmap+0x2c/0x40
   ntb_epf_pci_remove+0x44/0x80 [ntb_hw_epf]
   pci_device_remove+0x48/0xf8
   device_remove+0x50/0x88
   device_release_driver_internal+0x1c8/0x228
   driver_detach+0x50/0xb0
   bus_remove_driver+0x74/0x100
   driver_unregister+0x34/0x68
   pci_unregister_driver+0x34/0xa0
   ntb_epf_pci_driver_exit+0x14/0xfe0 [ntb_hw_epf]
  [...]

Fix it by unmapping only when PEER_SPAD and CONFIG use difference bars.

Cc: stable@vger.kernel.org
Fixes: e75d5ae8ab ("NTB: epf: Allow more flexibility in the memory BAR map method")
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Koichiro Den <den@valinux.co.jp>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
2026-06-26 22:18:21 -04:00
Alok Tiwari
4fc0625cf9 ntb_hw_amd: Fix incorrect debug message in link disable path
amd_ntb_link_disable() prints "Enabling Link" which is misleading.
Update the message to reflect that the link is being disabled.

Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
2026-06-26 22:08:31 -04:00
Jakub Kicinski
6c00e85cd4 Merge branch 'net-sched-finish-the-qdisc_dequeue_peeked-conversion-taprio-multiq'
Bryam Vargas says:

====================
net/sched: finish the qdisc_dequeue_peeked conversion (taprio, multiq)

Commit 77be155cba added peek emulation: a non-work-conserving qdisc's
->peek dequeues one skb and stashes it in the child's gso_skb. A parent
that peeks such a child must then take the packet with
qdisc_dequeue_peeked(), not a direct ->dequeue(), or the stashed skb is
bypassed and the child's qlen/backlog desync. sch_red and sch_sfb were
just fixed for this; taprio and multiq still take the direct path.

With a qfq child the desync re-enters qfq_dequeue on an emptied aggregate
list and dereferences NULL, panicking from softirq on ordinary egress.
taprio reaches it on its own (root-only software path, all gates open);
multiq reaches it when a peeking parent such as tbf wraps it over a
non-work-conserving grandchild. Both need only CAP_NET_ADMIN.

Confirmed under KASAN: the unpatched arm panics, the patched arm is
clean, and a work-conserving-child control is clean. The reproducers and
splats for both are below; the per-patch changes are one line each.

taprio reproducer (self-triggering, no parent qdisc needed):

  ip link add dummy0 numtxqueues 4 type dummy; ip link set dummy0 up
  ip addr add 10.10.11.10/24 dev dummy0
  tc qdisc add dev dummy0 root handle 1: taprio num_tc 2 \
     map 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 queues 1@0 1@1 \
     base-time 9000000000000000000 sched-entry S 03 200000 flags 0x0 clockid CLOCK_TAI
  tc qdisc replace dev dummy0 parent 1:1 handle 3: qfq
  tc class  add dev dummy0 classid 3:1 parent 3: qfq maxpkt 512 weight 1
  tc filter add dev dummy0 parent 3: protocol ip prio 1 matchall classid 3:1
  ping -c1 10.10.11.99 -I dummy0

[  903.769174] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000009: 0000 [#1] SMP KASAN NOPTI
[  903.769953] KASAN: null-ptr-deref in range [0x0000000000000048-0x000000000000004f]
[  903.770456] CPU: 7 UID: 0 PID: 16162 Comm: ping Not tainted 7.1.0-rc5 #1 PREEMPT(lazy)
[  903.771725] RIP: 0010:qfq_dequeue+0x362/0x1580 [sch_qfq]
[  903.777452] Call Trace:
[  903.778311]  taprio_dequeue_from_txq+0x383/0x680 [sch_taprio]
[  903.778685]  taprio_dequeue_tc_priority+0x19a/0x330 [sch_taprio]
[  903.779645]  taprio_dequeue+0xa6/0x330 [sch_taprio]
[  903.780299]  __qdisc_run+0x16c/0x1890
[  903.780854]  __dev_queue_xmit+0x1ece/0x3390
[  903.784109]  ip_finish_output2+0x571/0x1da0
[  903.785996]  ip_output+0x26c/0x4d0
[  903.789572]  ping_v4_sendmsg+0xd22/0x12b0
[  903.796118]  __x64_sys_sendto+0xe0/0x1c0
[  903.796612]  do_syscall_64+0xee/0x590
[  903.818669] Kernel panic - not syncing: Fatal exception in interrupt

multiq reproducer (needs a peeking parent over a stashing child; tbf
values chosen to force it to throttle):

  ip link add dummy0 numtxqueues 2 type dummy; ip link set dummy0 up
  ip addr add 10.10.11.10/24 dev dummy0
  tc qdisc add dev dummy0 root handle 1: tbf rate 88bit burst 1661b \
     peakrate 2257333 minburst 1024 limit 7b
  tc qdisc add dev dummy0 parent 1: handle 2: multiq
  for b in 1 2; do                          # qfq on every band
    tc qdisc  add dev dummy0 parent 2:$b handle 3$b: qfq
    tc class  add dev dummy0 classid 3$b:1 parent 3$b: qfq maxpkt 512 weight 1
    tc filter add dev dummy0 parent 3$b: protocol ip prio 1 matchall classid 3$b:1
  done
  ping -c12 10.10.11.99 -I dummy0

[ 1066.385097] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000009: 0000 [#1] SMP KASAN NOPTI
[ 1066.386385] KASAN: null-ptr-deref in range [0x0000000000000048-0x000000000000004f]
[ 1066.387227] CPU: 1 UID: 0 PID: 5357 Comm: ping Not tainted 7.1.0-rc5 #1 PREEMPT(lazy)
[ 1066.389183] RIP: 0010:qfq_dequeue+0x362/0x1580 [sch_qfq]
[ 1066.396316] Call Trace:
[ 1066.396768]  multiq_dequeue+0x163/0x360 [sch_multiq]
[ 1066.397885]  tbf_dequeue+0x6b9/0xf17 [sch_tbf]
[ 1066.398269]  __qdisc_run+0x16c/0x1890
[ 1066.399315]  __dev_queue_xmit+0x1ece/0x3390
[ 1066.403276]  ip_finish_output2+0x571/0x1da0
[ 1066.404818]  ip_output+0x26c/0x4d0
[ 1066.408620]  ping_v4_sendmsg+0xd22/0x12b0
[ 1066.415264]  __x64_sys_sendto+0xe0/0x1c0
[ 1066.416251]  do_syscall_64+0xee/0x590
[ 1066.441210] Kernel panic - not syncing: Fatal exception in interrupt
====================

Link: https://patch.msgid.link/20260625-b4-disp-31bcb279-v1-0-85c40b83c529@proton.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-06-26 18:52:31 -07:00
Bryam Vargas
54f6b0c843 net/sched: sch_multiq: Replace direct dequeue call with peek and qdisc_dequeue_peeked
multiq_dequeue() takes a packet from a band's child with a direct
->dequeue() call after multiq_peek() peeked it. When the child is
non-work-conserving the peek stashes the skb in the child's gso_skb, so
the direct dequeue returns a different skb and orphans the stash,
desyncing the child's qlen/backlog. With a qfq child reached through a
peeking parent (e.g. tbf) this re-enters the child on an emptied list and
dereferences NULL, panicking the kernel from softirq on ordinary egress.

Take the packet through qdisc_dequeue_peeked(), as sch_prio already does
and as sch_red and sch_sfb were just fixed to do. The helper is a no-op
when the child has no stash, so a work-conserving child is unaffected.

Fixes: 77be155cba ("pkt_sched: Add peek emulation for non-work-conserving qdiscs.")
Cc: stable@vger.kernel.org
Signed-off-by: Bryam Vargas <hexlabsecurity@proton.me>
Reviewed-by: Victor Nogueira <victor@mojatatu.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Link: https://patch.msgid.link/20260625-b4-disp-31bcb279-v1-2-85c40b83c529@proton.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-06-26 18:52:26 -07:00
Bryam Vargas
e056e1dfcd net/sched: sch_taprio: Replace direct dequeue call with peek and qdisc_dequeue_peeked
When taprio's software path peeks a non-work-conserving child qdisc, the
child stashes the peeked skb in its gso_skb; taprio_dequeue_from_txq()
then takes the packet with a direct child ->dequeue() call, which ignores
that stash, orphans the peeked skb and desyncs the child's qlen/backlog.
With a qfq child this re-enters the child on an emptied list and
dereferences NULL, panicking the kernel from softirq on ordinary egress.

Take the packet through qdisc_dequeue_peeked(), as sch_red and sch_sfb
now do. The helper returns the child's stashed skb first and is a no-op
when there is none, so a work-conserving child is unaffected and the
gated path now consumes the skb whose length was charged to the budget.

Fixes: 5a781ccbd1 ("tc: Add support for configuring the taprio scheduler")
Cc: stable@vger.kernel.org
Cc: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Bryam Vargas <hexlabsecurity@proton.me>
Reviewed-by: Victor Nogueira <victor@mojatatu.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Link: https://patch.msgid.link/20260625-b4-disp-31bcb279-v1-1-85c40b83c529@proton.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-06-26 18:52:26 -07:00
Matvey Kovalev
f9ba47fce5 qede: fix out-of-bounds check for cqe->len_list[]
Move index check before element access.

Fixes: 896f1a2493 ("net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end()")
Signed-off-by: Matvey Kovalev <matvey.kovalev@ispras.ru>
Link: https://patch.msgid.link/20260623144602.3521-1-matvey.kovalev@ispras.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-06-26 18:51:03 -07:00
Nuoqi Gui
a75d99f46b seg6: validate SRH length before reading fixed fields
seg6_validate_srh() reads fixed SRH fields such as srh->type and
srh->hdrlen before checking that the supplied length covers the fixed
struct ipv6_sr_hdr fields.

The BPF SEG6 encap path reaches this with a BPF program-supplied pointer
and length: bpf_lwt_push_encap() and the SEG6 local BPF END_B6 and
END_B6_ENCAP actions call bpf_push_seg6_encap(), which forwards the
length to seg6_validate_srh() with no minimum-size guard.  A 2-byte SEG6
encap header can therefore make the validator read srh->type at offset 2
beyond the caller-supplied buffer.

Reject lengths shorter than the fixed SRH at the top of
seg6_validate_srh(), before any field is read.  This fixes the BPF helper
path and keeps the common validator robust.

Fixes: fe94cc290f ("bpf: Add IPv6 Segment Routing helpers")
Signed-off-by: Nuoqi Gui <gnq25@mails.tsinghua.edu.cn>
Reviewed-by: Andrea Mayer <andrea.mayer@uniroma2.it>
Link: https://patch.msgid.link/20260623-f01-17-seg6-srh-len-v2-1-2edc40e9e3e1@mails.tsinghua.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-06-26 18:49:37 -07:00
Corey Leavitt
16759757c4 net: pse-pd: scope pse_control regulator handle to kref lifetime
__pse_control_release() drops psec->ps via devm_regulator_put(), which
only succeeds if the devres entry added by the matching
devm_regulator_get_exclusive() is still present on pcdev->dev at the
time the pse_control's kref hits zero.

That assumption does not hold when the controller is unbound while a
pse_control still has consumers: pcdev->dev's devres list is released
LIFO, so every per-attach regulator-GET devres runs (and
regulator_put()s the underlying regulator) before
pse_controller_unregister() itself is invoked. Any later
pse_control_put() from that unbind path then reads psec->ps as a
dangling pointer inside devm_regulator_put() and WARNs at
drivers/regulator/devres.c:232 (devres_release() fails to find the
already-released match).

The pse_control's consumer handle is logically scoped to the
pse_control's refcount, not to pcdev->dev's devres lifetime. Switch to
the plain regulator_get_exclusive() / regulator_put() pair so the
regulator put in __pse_control_release() no longer depends on the
controller's devres still being present. No change to the
regulator-framework-visible refcount or lifetime of the underlying
regulator: a single get paired with a single put. The existing
devm_regulator_register() for the per-PI rails is unchanged (those ARE
correctly scoped to the controller's lifetime).

This addresses only the regulator handle. The same unbind-while-held
scenario also leaves __pse_control_release() reading psec->pcdev->pi[]
and psec->pcdev->owner after pse_controller_unregister() has freed
pcdev->pi, because the controller does not drain its outstanding
pse_control references on unregister. That wider pse_control vs
pcdev lifetime problem pre-dates this change and is addressed by the
PSE controller notifier series, which drains phydev->psec on
PSE_UNREGISTERED before pcdev->pi is freed.

Link: https://lore.kernel.org/netdev/20260620112440.1734404-1-github@szelinsky.de/
Fixes: d83e13761d ("net: pse-pd: Use regulator framework within PSE framework")
Signed-off-by: Corey Leavitt <corey@leavitt.info>
Acked-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: Carlo Szelinsky <github@szelinsky.de>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20260624204017.2752934-1-github@szelinsky.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-06-26 18:43:09 -07:00
Haoxiang Li
c63ee62a3c net: liquidio: fix BAR resource leak on PF number failure
If cn23xx_get_pf_num() fails, the function returns without
unmapping either BAR. Unmap both BARs before returning from
the error path.

Found by manual code review.

Fixes: 0c45d7fe12 ("liquidio: fix use of pf in pass-through mode in a virtual machine")
Cc: stable@vger.kernel.org
Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com>
Reviewed-by: Larysa Zaremba <larysa.zaremba@intel.com>
Link: https://patch.msgid.link/20260624064013.2809570-1-haoxiang_li2024@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-06-26 18:40:52 -07:00
Haoxiang Li
96ca1e658a net: ipa: fix SMEM state handle leaks in SMP2P init
ipa_smp2p_init() acquires two Qualcomm SMEM state handles with
qcom_smem_state_get(). However, neither the init error paths
nor ipa_smp2p_exit() release them.

Release both handles with qcom_smem_state_put() in the init
error paths and in ipa_smp2p_exit().

Fixes: 530f9216a9 ("soc: qcom: ipa: AP/modem communications")
Cc: stable@vger.kernel.org
Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com>
Reviewed-by: Larysa Zaremba <larysa.zaremba@intel.com>
Reviewed-by: Alex Elder <elder@riscstar.com>
Link: https://patch.msgid.link/20260624065955.2822765-1-haoxiang_li2024@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-06-26 18:40:04 -07:00