- Remove useless assignment of soft_mode variable
The function __ftrace_event_enable_disable() sets "soft_mode" in one of
the branch paths but doesn't use it after that. Remove the setting of that
variable.
- Add a cond_resched() in ring_buffer_resize()
The resize function that allocates all the pages for the ring buffer was
causing a soft lockup on PREEMPT_NONE configs when allocating large
buffers on machines with many CPUs. Hopefully this is the last
cond_resched() needed to be added as PREEMPT_LAZY becomes the norm in the
future.
- Make ftrace_graph_ent depth field signed
The "depth" field of struct ftrace_graph_ent was converted from "int" to
"unsigned long" for alignment reasons to work with being embedded in other
structures. The conversion from a signed to unsigned caused integrity
checks to always pass as they were comparing "depth" to less than zero.
Make the field signed long.
- Add recursion protection to stack trace events
A infinite recursion was triggered by a stack trace event calling RCU
which internally called rcu_read_unlock_special(), which triggered an
event that was also doing stacktraces which cause it to trigger the same
RCU lock that called rcu_read_unlock_special() again.
Update the trace_test_and_set_recursion() to add a set of context checks
for events to use, and have the stack trace event use that for recursion
protection.
- Make the variable ftrace_dump_on_oops static
The cleanup of sysctl that moved all the updates to the files that use
them moved the reference of ftrace_dump_on_oops to where it is used.
It is no longer used outside of the trace.c file. Make it static.
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Merge tag 'trace-v6.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Remove useless assignment of soft_mode variable
The function __ftrace_event_enable_disable() sets "soft_mode" in one
of the branch paths but doesn't use it after that. Remove the setting
of that variable.
- Add a cond_resched() in ring_buffer_resize()
The resize function that allocates all the pages for the ring buffer
was causing a soft lockup on PREEMPT_NONE configs when allocating
large buffers on machines with many CPUs. Hopefully this is the last
cond_resched() needed to be added as PREEMPT_LAZY becomes the norm in
the future.
- Make ftrace_graph_ent depth field signed
The "depth" field of struct ftrace_graph_ent was converted from "int"
to "unsigned long" for alignment reasons to work with being embedded
in other structures. The conversion from a signed to unsigned caused
integrity checks to always pass as they were comparing "depth" to
less than zero. Make the field signed long.
- Add recursion protection to stack trace events
A infinite recursion was triggered by a stack trace event calling RCU
which internally called rcu_read_unlock_special(), which triggered an
event that was also doing stacktraces which cause it to trigger the
same RCU lock that called rcu_read_unlock_special() again.
Update the trace_test_and_set_recursion() to add a set of context
checks for events to use, and have the stack trace event use that for
recursion protection.
- Make the variable ftrace_dump_on_oops static
The cleanup of sysctl that moved all the updates to the files that
use them moved the reference of ftrace_dump_on_oops to where it is
used. It is no longer used outside of the trace.c file. Make it
static.
* tag 'trace-v6.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
trace: ftrace_dump_on_oops[] is not exported, make it static
tracing: Add recursion protection in kernel stack trace recording
ftrace: Make ftrace_graph_ent depth field signed
ring-buffer: Avoid softlockup in ring_buffer_resize() during memory free
tracing: Drop unneeded assignment to soft_mode
Current release - fix to a fix:
- net: do not write to msg_get_inq in callee
- arp: do not assume dev_hard_header() does not change skb->head
Current release - regressions:
- wifi: mac80211: don't iterate not running interfaces
- eth: mlx5: fix NULL pointer dereference in ioctl module EEPROM
Current release - new code bugs:
- eth: bnge: add AUXILIARY_BUS to Kconfig dependencies
Previous releases - regressions:
- eth: mlx5: dealloc forgotten PSP RX modify header
Previous releases - always broken:
- ping: fix ICMP out SNMP stats double-counting with ICMP sockets
- bonding: preserve NETIF_F_ALL_FOR_ALL across TSO updates
- bridge: fix C-VLAN preservation in 802.1ad vlan_tunnel egress
- eth: bnxt: fix potential data corruption with HW GRO/LRO
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from netfilter and wireless.
Current release - fix to a fix:
- net: do not write to msg_get_inq in callee
- arp: do not assume dev_hard_header() does not change skb->head
Current release - regressions:
- wifi: mac80211: don't iterate not running interfaces
- eth: mlx5: fix NULL pointer dereference in ioctl module EEPROM
Current release - new code bugs:
- eth: bnge: add AUXILIARY_BUS to Kconfig dependencies
Previous releases - regressions:
- eth: mlx5: dealloc forgotten PSP RX modify header
Previous releases - always broken:
- ping: fix ICMP out SNMP stats double-counting with ICMP sockets
- bonding: preserve NETIF_F_ALL_FOR_ALL across TSO updates
- bridge: fix C-VLAN preservation in 802.1ad vlan_tunnel egress
- eth: bnxt: fix potential data corruption with HW GRO/LRO"
* tag 'net-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (70 commits)
arp: do not assume dev_hard_header() does not change skb->head
net: enetc: fix build warning when PAGE_SIZE is greater than 128K
atm: Fix dma_free_coherent() size
tools: ynl: don't install tests
net: do not write to msg_get_inq in callee
bnxt_en: Fix NULL pointer crash in bnxt_ptp_enable during error cleanup
net: usb: pegasus: fix memory leak in update_eth_regs_async()
net: 3com: 3c59x: fix possible null dereference in vortex_probe1()
net/sched: sch_qfq: Fix NULL deref when deactivating inactive aggregate in qfq_reset
wifi: mac80211: collect station statistics earlier when disconnect
wifi: mac80211: restore non-chanctx injection behaviour
wifi: mac80211_hwsim: disable BHs for hwsim_radio_lock
wifi: mac80211: don't iterate not running interfaces
wifi: mac80211_hwsim: fix typo in frequency notification
wifi: avoid kernel-infoleak from struct iw_point
net: airoha: Fix schedule while atomic in airoha_ppe_deinit()
selftests: netdevsim: add carrier state consistency test
net: netdevsim: fix inconsistent carrier state after link/unlink
selftests: drv-net: Bring back tool() to driver __init__s
net/sched: act_api: avoid dereferencing ERR_PTR in tcf_idrinfo_destroy
...
arp_create() is the only dev_hard_header() caller
making assumption about skb->head being unchanged.
A recent commit broke this assumption.
Initialize @arp pointer after dev_hard_header() call.
Fixes: db5b4e39c4e6 ("ip6_gre: make ip6gre_header() robust")
Reported-by: syzbot+58b44a770a1585795351@syzkaller.appspotmail.com
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260107212250.384552-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2026-01-06 (idpf)
This series contains updates to idpf driver only.
Emil fixes issues related to resets; among them timeouts, NULL pointer
dereferences, and memory leaks.
Sreedevi resolves issues around RSS; mainly involving operations when
the interface is down and resets. She also addresses some incomplete
cleanups for ntuple filters and interrupts.
Erik fixes incomplete output of ntuple filters.
Josh sets restriction of Rx buffer size to follow hardware restrictions.
Larysa adds check to prevent NULL pointer dereference when RDMA is not
enabled.
* '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
idpf: fix aux device unplugging when rdma is not supported by vport
idpf: cap maximum Rx buffer size
idpf: Fix error handling in idpf_vport_open()
idpf: Fix RSS LUT NULL ptr issue after soft reset
idpf: Fix RSS LUT configuration on down interfaces
idpf: Fix RSS LUT NULL pointer crash on early ethtool operations
idpf: fix issue with ethtool -n command display
idpf: fix memory leak of flow steer list on rmmod
idpf: fix error handling in the init_task on load
idpf: fix memory leak in idpf_vc_core_deinit()
idpf: fix memory leak in idpf_vport_rel()
idpf: detach and close netdevs while handling a reset
idpf: keep the netdev when a reset fails
====================
Link: https://patch.msgid.link/20260107000648.1861994-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The max buffer size of ENETC RX BD is 0xFFFF bytes, so if the PAGE_SIZE
is greater than 128K, ENETC_RXB_DMA_SIZE and ENETC_RXB_DMA_SIZE_XDP will
be greater than 0xFFFF, thus causing a build warning.
This will not cause any practical issues because ENETC is currently only
used on the ARM64 platform, and the max PAGE_SIZE is 64K. So this patch
is only for fixing the build warning that occurs when compiling ENETC
drivers for other platforms.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202601050637.kHEKKOG7-lkp@intel.com/
Fixes: e59bc32df2e9 ("net: enetc: correct the value of ENETC_RXB_TRUESIZE")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260107091204.1980222-1-wei.fang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- mac80211:
- long-standing injection bug due to chanctx rework
- more recent interface iteration issue
- collect statistics before removing stations
- hwsim:
- fix NAN frequency typo (potential NULL ptr deref)
- fix locking of radio lock (needs softirqs disabled)
- wext:
- ancient issue with compat and events copying some
uninitialized stack data to userspace
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Merge tag 'wireless-2026-01-08' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Johannes Berg says:
====================
Couple of fixes:
- mac80211:
- long-standing injection bug due to chanctx rework
- more recent interface iteration issue
- collect statistics before removing stations
- hwsim:
- fix NAN frequency typo (potential NULL ptr deref)
- fix locking of radio lock (needs softirqs disabled)
- wext:
- ancient issue with compat and events copying some
uninitialized stack data to userspace
* tag 'wireless-2026-01-08' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
wifi: mac80211: collect station statistics earlier when disconnect
wifi: mac80211: restore non-chanctx injection behaviour
wifi: mac80211_hwsim: disable BHs for hwsim_radio_lock
wifi: mac80211: don't iterate not running interfaces
wifi: mac80211_hwsim: fix typo in frequency notification
wifi: avoid kernel-infoleak from struct iw_point
====================
Link: https://patch.msgid.link/20260108140141.139687-3-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The size of the buffer is not the same when alloc'd with
dma_alloc_coherent() in he_init_tpdrq() and freed.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: <stable@vger.kernel.org>
Signed-off-by: Thomas Fourier <fourier.thomas@gmail.com>
Link: https://patch.msgid.link/20260107090141.80900-2-fourier.thomas@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
make's install target is meant for installing the production
artifacts, AFAIU. Don't install test_ynl_cli and test_ynl_ethtool
from under the main YNL install target. The install target
under tests/ is retained in case someone wants the tests
to be installed.
Fixes: 308b7dee3e5c ("tools: ynl: add YNL test framework")
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20260106163426.1468943-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
NULL pointer dereference fix.
msg_get_inq is an input field from caller to callee. Don't set it in
the callee, as the caller may not clear it on struct reuse.
This is a kernel-internal variant of msghdr only, and the only user
does reinitialize the field. So this is not critical for that reason.
But it is more robust to avoid the write, and slightly simpler code.
And it fixes a bug, see below.
Callers set msg_get_inq to request the input queue length to be
returned in msg_inq. This is equivalent to but independent from the
SO_INQ request to return that same info as a cmsg (tp->recvmsg_inq).
To reduce branching in the hot path the second also sets the msg_inq.
That is WAI.
This is a fix to commit 4d1442979e4a ("af_unix: don't post cmsg for
SO_INQ unless explicitly asked for"), which fixed the inverse.
Also avoid NULL pointer dereference in unix_stream_read_generic if
state->msg is NULL and msg->msg_get_inq is written. A NULL state->msg
can happen when splicing as of commit 2b514574f7e8 ("net: af_unix:
implement splice for stream af_unix sockets").
Also collapse two branches using a bitwise or.
Cc: stable@vger.kernel.org
Fixes: 4d1442979e4a ("af_unix: don't post cmsg for SO_INQ unless explicitly asked for")
Link: https://lore.kernel.org/netdev/willemdebruijn.kernel.24d8030f7a3de@gmail.com/
Signed-off-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260106150626.3944363-1-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When bnxt_init_one() fails during initialization (e.g.,
bnxt_init_int_mode returns -ENODEV), the error path calls
bnxt_free_hwrm_resources() which destroys the DMA pool and sets
bp->hwrm_dma_pool to NULL. Subsequently, bnxt_ptp_clear() is called,
which invokes ptp_clock_unregister().
Since commit a60fc3294a37 ("ptp: rework ptp_clock_unregister() to
disable events"), ptp_clock_unregister() now calls
ptp_disable_all_events(), which in turn invokes the driver's .enable()
callback (bnxt_ptp_enable()) to disable PTP events before completing the
unregistration.
bnxt_ptp_enable() attempts to send HWRM commands via bnxt_ptp_cfg_pin()
and bnxt_ptp_cfg_event(), both of which call hwrm_req_init(). This
function tries to allocate from bp->hwrm_dma_pool, causing a NULL
pointer dereference:
bnxt_en 0000:01:00.0 (unnamed net_device) (uninitialized): bnxt_init_int_mode err: ffffffed
KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f]
Call Trace:
__hwrm_req_init (drivers/net/ethernet/broadcom/bnxt/bnxt_hwrm.c:72)
bnxt_ptp_enable (drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c:323 drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c:517)
ptp_disable_all_events (drivers/ptp/ptp_chardev.c:66)
ptp_clock_unregister (drivers/ptp/ptp_clock.c:518)
bnxt_ptp_clear (drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c:1134)
bnxt_init_one (drivers/net/ethernet/broadcom/bnxt/bnxt.c:16889)
Lines are against commit f8f9c1f4d0c7 ("Linux 6.19-rc3")
Fix this by clearing and unregistering ptp (bnxt_ptp_clear()) before
freeing HWRM resources.
Suggested-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Breno Leitao <leitao@debian.org>
Fixes: a60fc3294a37 ("ptp: rework ptp_clock_unregister() to disable events")
Cc: stable@vger.kernel.org
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://patch.msgid.link/20260106-bnxt-v3-1-71f37e11446a@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When asynchronously writing to the device registers and if usb_submit_urb()
fail, the code fail to release allocated to this point resources.
Fixes: 323b34963d11 ("drivers: net: usb: pegasus: fix control urb submission")
Signed-off-by: Petko Manolov <petkan@nucleusys.com>
Link: https://patch.msgid.link/20260106084821.3746677-1-petko.manolov@konsulko.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
pdev can be null and free_ring: can be called in 1297 with a null
pdev.
Fixes: 55c82617c3e8 ("3c59x: convert to generic DMA API")
Cc: <stable@vger.kernel.org>
Signed-off-by: Thomas Fourier <fourier.thomas@gmail.com>
Link: https://patch.msgid.link/20260106094731.25819-2-fourier.thomas@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'hid-for-linus-2026010801' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fixes from Jiri Kosina:
- build fix for HID-BPF (Benjamin Tissoires)
- fix for potential buffer overflow in i2c-hid (Kwok Kin Ming)
- a couple of selftests/hid fixes (Peter Hutterer)
- fix for handling pressure pads in hid-multitouch (Peter Hutterer)
- fix for potential NULL pointer dereference in intel-thc-hid (Even Xu)
- fix for interrupt delay control in intel-thc-hid (Even Xu)
- fix finger release detection on some VTL-class touchpads (DaytonCL)
- fix for correct enumeration on intel-ish-hid systems with no sensors
(Zhang Lixu)
- assorted device ID additions and device-specific quirks
* tag 'hid-for-linus-2026010801' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (21 commits)
HID: logitech: add HID++ support for Logitech MX Anywhere 3S
HID: Elecom: Add support for ELECOM M-XT3DRBK (018C)
HID: quirks: work around VID/PID conflict for appledisplay
HID: Apply quirk HID_QUIRK_ALWAYS_POLL to Edifier QR30 (2d99:a101)
HID: i2c-hid: fix potential buffer overflow in i2c_hid_get_report()
selftests/hid: add a test for the Digitizer/Button Type pressurepad
selftests/hid: use a enum class for the different button types
selftests/hid: require hidtools 0.12
HID: multitouch: set INPUT_PROP_PRESSUREPAD based on Digitizer/Button Type
HID: quirks: Add another Chicony HP 5MP Cameras to hid_ignore_list
HID: Intel-thc-hid: Intel-thc: Add safety check for reading DMA buffer
hid: intel-thc-hid: Select SGL_ALLOC
selftests/hid: fix bpf compilations due to -fms-extensions
HID: bpf: fix bpf compilation with -fms-extensions
HID: Intel-thc-hid: Intel-thc: Fix wrong register reading
HID: multitouch: add MT_QUIRK_STICKY_FINGERS to MT_CLS_VTL
HID: intel-ish-hid: Reset enum_devices_done before enumeration
HID: intel-ish-hid: Update ishtp bus match to support device ID table
HID: Intel-thc-hid: Intel-thc: fix dma_unmap_sg() nents value
HID: playstation: Center initial joystick axes to prevent spurious events
...
A collection of small device-specific fixes.
* ASoC Intel topology fixes for conflicting Bluetooth bits
* Cleanups of ASoC drivers for superfluous NULL checks
* Fix for error handling in the AC97 bus
* A regression fix for TAS2781 speaker ID handling
* HD-audio quirks
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Merge tag 'sound-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of small device-specific fixes:
- ASoC Intel topology fixes for conflicting Bluetooth bits
- Cleanups of ASoC drivers for superfluous NULL checks
- Fix for error handling in the AC97 bus
- A regression fix for TAS2781 speaker ID handling
- HD-audio quirks"
* tag 'sound-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek: add HP Laptop 15s-eq1xxx mute LED quirk
ALSA: hda/realtek: Add quirk for Acer Nitro AN517-55
ALSA: hda/tas2781: properly initialize speaker_id for TAS2563
ALSA: ac97: fix a double free in snd_ac97_controller_register()
ASoC: sun4i-spdif: Add missing kerneldoc fields for sun4i_spdif_quirks
ASoC: codecs: pm4125: clean up bind() device reference handling
ASoC: soc_sdw_utils: drop bogus container_of() error handling
ASoC: codecs: wcd937x: drop bogus container_of() error handling
ASoC: codecs: pm4125: drop bogus container_of() error handling
ASoC: SOF: Intel: add -bt tplg suffix if BT is present
ASoC: Intel: sof_sdw: shift SSP BT mask bits.
In __sta_info_destroy_part2(), station statistics are requested after the
IEEE80211_STA_NONE -> IEEE80211_STA_NOTEXIST transition. This is
problematic because the driver may be unable to handle the request due to
the STA being in the NOTEXIST state (i.e. if the driver destroys the
underlying data when transitioning to NOTEXIST).
Move the statistics collection to before the state transition to avoid
this issue.
Signed-off-by: Baochen Qiang <baochen.qiang@oss.qualcomm.com>
Link: https://patch.msgid.link/20251222-mac80211-move-station-stats-collection-earlier-v1-1-12cd4e42c633@oss.qualcomm.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
During the transition to use channel contexts throughout, the
ability to do injection while in monitor mode concurrent with
another interface was lost, since the (virtual) monitor won't
have a chanctx assigned in this scenario.
It's harder to fix drivers that actually transitioned to using
channel contexts themselves, such as mt76, but it's easy to do
those that are (still) just using the emulation. Do that.
Cc: stable@vger.kernel.org
Link: https://bugzilla.kernel.org/show_bug.cgi?id=218763
Reported-and-tested-by: Oscar Alfonso Diaz <oscar.alfonso.diaz@gmail.com>
Fixes: 0a44dfc07074 ("wifi: mac80211: simplify non-chanctx drivers")
Link: https://patch.msgid.link/20251216105242.18366-2-johannes@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
for_each_chanctx_user_* was introdcued as a replacement for
for_each_sdata_link, which visits also other chanctx users that are not
link.
for_each_sdata_link skips not running interfaces, do the same for
for_each_chanctx_user_*
Fixes: 1ce954c98b89 ("wifi: mac80211: add and use chanctx usage iteration")
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260107143736.55c084e2a976.I38b7b904a135dadca339321923b501b2c2c5c8c0@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The NAN notification is for 5745 MHz which corresponds to channel 149
and not 5475 which is not actually a valid channel. This could result in
a NULL pointer dereference in cfg80211_next_nan_dw_notif.
Fixes: a37a6f54439b ("wifi: mac80211_hwsim: Add simulation support for NAN device")
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260107143652.7dab2035836f.Iacbaf7bb94ed5c14a0928a625827e4137d8bfede@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
I've acquired a Logitech MX Anywhere 3S mouse, which supports HID++ over
Bluetooth. Adding its PID 0xb037 to the allowlist enables the additional
features, such as high-resolution scrolling. Tested working across multiple
machines, with a mix of Intel and Mediatek Bluetooth chips.
[jkosina@suse.com: standardize shortlog]
Signed-off-by: Dennis Marttinen <twelho@welho.tech>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
airoha_ppe_deinit() runs airoha_npu_ppe_deinit() in atomic context.
airoha_npu_ppe_deinit routine allocates ppe_data buffer with GFP_KERNEL
flag. Rely on rcu_replace_pointer in airoha_ppe_deinit routine in order
to fix schedule while atomic issue in airoha_npu_ppe_deinit() since we
do not need atomic context there.
Fixes: 00a7678310fe3 ("net: airoha: Introduce flowtable offload support")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20260105-airoha-fw-ethtool-v2-1-3b32b158cc31@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
For years I wondered why the Apple Cinema Display driver would not
just work for me. Turns out the hidraw driver instantly takes it
over. Fix by adding appledisplay VID/PIDs to hid_have_special_driver.
Fixes: 069e8a65cd79 ("Driver for Apple Cinema Display")
Signed-off-by: René Rebe <rene@exactco.de>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
The USB speaker has a bug that causes it to reboot when changing the
brightness using the physical knob.
Add a new vendor and product ID entry in hid-ids.h, and register
the corresponding device in hid-quirks.c with the required quirk.
Signed-off-by: Rodrigo Lugathe da Conceição Alves <lugathe2@gmail.com>
Reviewed-by: Terry Junge <linuxhid@cosmicgizmosystems.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
The ftrace_dump_on_oops string is not used outside of trace.c so
make it static to avoid the export warning from sparse:
kernel/trace/trace.c:141:6: warning: symbol 'ftrace_dump_on_oops' was not declared. Should it be static?
Fixes: dd293df6395a2 ("tracing: Move trace sysctls into trace.c")
Link: https://patch.msgid.link/20260106231054.84270-1-ben.dooks@codethink.co.uk
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
A bug was reported about an infinite recursion caused by tracing the rcu
events with the kernel stack trace trigger enabled. The stack trace code
called back into RCU which then called the stack trace again.
Expand the ftrace recursion protection to add a set of bits to protect
events from recursion. Each bit represents the context that the event is
in (normal, softirq, interrupt and NMI).
Have the stack trace code use the interrupt context to protect against
recursion.
Note, the bug showed an issue in both the RCU code as well as the tracing
stacktrace code. This only handles the tracing stack trace side of the
bug. The RCU fix will be handled separately.
Link: https://lore.kernel.org/all/20260102122807.7025fc87@gandalf.local.home/
Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
Link: https://patch.msgid.link/20260105203141.515cd49f@gandalf.local.home
Reported-by: Yao Kai <yaokai34@huawei.com>
Tested-by: Yao Kai <yaokai34@huawei.com>
Fixes: 5f5fa7ea89dc ("rcu: Don't use negative nesting depth in __rcu_read_unlock()")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
The code has integrity checks to make sure that depth never goes below
zero. But the depth field has recently been converted to unsigned long
from "int" (for alignment reasons). As unsigned long can never be less
than zero, the integrity checks no longer work.
Convert depth to long from unsigned long to allow the integrity checks to
work again.
Cc: stable@vger.kernel.org
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: pengdonglin <pengdonglin@xiaomi.com>
Link: https://patch.msgid.link/20260102143148.251c2e16@gandalf.local.home
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/aS6kGi0maWBl-MjZ@stanley.mountain/
Fixes: f83ac7544fbf7 ("function_graph: Enable funcgraph-args and funcgraph-retaddr to work simultaneously")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
When user resize all trace ring buffer through file 'buffer_size_kb',
then in ring_buffer_resize(), kernel allocates buffer pages for each
cpu in a loop.
If the kernel preemption model is PREEMPT_NONE and there are many cpus
and there are many buffer pages to be freed, it may not give up cpu
for a long time and finally cause a softlockup.
To avoid it, call cond_resched() after each cpu buffer free as Commit
f6bd2c92488c ("ring-buffer: Avoid softlockup in ring_buffer_resize()")
does.
Detailed call trace as follow:
rcu: INFO: rcu_sched self-detected stall on CPU
rcu: 24-....: (14837 ticks this GP) idle=521c/1/0x4000000000000000 softirq=230597/230597 fqs=5329
rcu: (t=15004 jiffies g=26003221 q=211022 ncpus=96)
CPU: 24 UID: 0 PID: 11253 Comm: bash Kdump: loaded Tainted: G EL 6.18.2+ #278 NONE
pc : arch_local_irq_restore+0x8/0x20
arch_local_irq_restore+0x8/0x20 (P)
free_frozen_page_commit+0x28c/0x3b0
__free_frozen_pages+0x1c0/0x678
___free_pages+0xc0/0xe0
free_pages+0x3c/0x50
ring_buffer_resize.part.0+0x6a8/0x880
ring_buffer_resize+0x3c/0x58
__tracing_resize_ring_buffer.part.0+0x34/0xd8
tracing_resize_ring_buffer+0x8c/0xd0
tracing_entries_write+0x74/0xd8
vfs_write+0xcc/0x288
ksys_write+0x74/0x118
__arm64_sys_write+0x24/0x38
Cc: <mathieu.desnoyers@efficios.com>
Link: https://patch.msgid.link/20251228065008.2396573-1-mawupeng1@huawei.com
Signed-off-by: Wupeng Ma <mawupeng1@huawei.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
soft_mode is not read in the enable case, so drop the assignment.
Drop also the comment text that refers to the assignment and realign
the comment.
Cc: "Paul E . McKenney" <paulmck@kernel.org>
Cc: Gabriele Paoloni <gpaoloni@redhat.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://patch.msgid.link/20251226110531.4129794-1-Julia.Lawall@inria.fr
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
`i2c_hid_xfer` is used to read `recv_len + sizeof(__le16)` bytes of data
into `ihid->rawbuf`.
The former can come from the userspace in the hidraw driver and is only
bounded by HID_MAX_BUFFER_SIZE(16384) by default (unless we also set
`max_buffer_size` field of `struct hid_ll_driver` which we do not).
The latter has size determined at runtime by the maximum size of
different report types you could receive on any particular device and
can be a much smaller value.
Fix this by truncating `recv_len` to `ihid->bufsize - sizeof(__le16)`.
The impact is low since access to hidraw devices requires root.
Signed-off-by: Kwok Kin Ming <kenkinming2002@gmail.com>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
We have to resort to a bit of a hack: python-libevdev gets the
properties from libevdev at module init time. If libevdev hasn't been
rebuilt with the new property it won't be automatically populated. So we
hack around this by constructing the property manually.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Instead of multiple spellings of a string-provided argument, let's make
this a tad more type-safe and use an enum here.
And while we do this fix the two wrong devices:
- elan_04f3_313a (HP ZBook Fury 15) is discrete button pad
- dell_044e_1220 (Dell Precision 7740) is a discrete button pad
Equivalent hid-tools commit
8300a55bf4
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Not all our tests really require it but since it's likely pip-installed
anyway it's trivial to require the new version, just in case we want to
start cleaning up other bits.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Another Chicony Electronics HP 5MP Camera with USB ID 04F2:B882
reports a HID sensor interface that is not actually implemented.
Add the device to the HID ignore list so the bogus sensor is never
exposed to userspace. Then the system won't hang when runtime PM
tries to wake the unresponsive device.
Signed-off-by: Chris Chiu <chris.chiu@canonical.com>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
intel-thc-dma.c uses sgl_alloc() resulting in a build failure
if CONFIG_SGL_ALLOC is not enabled
Signed-off-by: Tim Zimmermann <tim@linux4.de>
Reviewed-by: Even Xu <even.xu@intel.com>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Similar to commit 835a50753579 ("selftests/bpf: Add -fms-extensions to
bpf build flags") and commit 639f58a0f480 ("bpftool: Fix build warnings
due to MS extensions")
The kernel is now built with -fms-extensions, therefore
generated vmlinux.h contains types like:
struct slab {
..
struct freelist_counters;
};
Use -fms-extensions and -Wno-microsoft-anon-tag flags
to build bpf programs that #include "vmlinux.h"
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Similar to commit 835a50753579 ("selftests/bpf: Add -fms-extensions to
bpf build flags") and commit 639f58a0f480 ("bpftool: Fix build warnings
due to MS extensions")
The kernel is now built with -fms-extensions, therefore
generated vmlinux.h contains types like:
struct slab {
..
struct freelist_counters;
};
Use -fms-extensions and -Wno-microsoft-anon-tag flags
to build bpf programs that #include "vmlinux.h"
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Yohei Kojima says:
====================
net: netdevsim: fix inconsistent carrier state after link/unlink
This series fixes netdevsim's inconsistent behavior between carrier
and link/unlink state.
More specifically, this fixes a bug that the carrier goes DOWN although
two netdevsim were peered, depending on the order of peering and ifup.
Especially in a NetworkManager-enabled environment, netdevsim test fails
because of this.
The first patch fixes the bug itself in netdevsim/bus.c by adding
netif_carrier_on() into a proper function. The second patch adds a
regression test for this bug.
====================
Link: https://patch.msgid.link/cover.1767624906.git.yk@y-koj.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit adds a test case for netdevsim carrier state consistency.
Specifically, the added test verifies the carrier state during the
following operations:
1. Unlink two netdevsims
2. ifdown one netdevsim, then ifup again
3. Link the netdevsims again
4. ifdown one netdevsim, then ifup again
These steps verifies that the carrier is UP iff two netdevsims are
linked and ifuped.
Signed-off-by: Yohei Kojima <yk@y-koj.net>
Link: https://patch.msgid.link/481e2729e53b6074ebfc0ad85764d8feb244de8c.1767624906.git.yk@y-koj.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This patch fixes the edge case behavior on ifup/ifdown and
linking/unlinking two netdevsim interfaces:
1. unlink two interfaces netdevsim1 and netdevsim2
2. ifdown netdevsim1
3. ifup netdevsim1
4. link two interfaces netdevsim1 and netdevsim2
5. (Now two interfaces are linked in terms of netdevsim peer, but
carrier state of the two interfaces remains DOWN.)
This inconsistent behavior is caused by the current implementation,
which only cares about the "link, then ifup" order, not "ifup, then
link" order. This patch fixes the inconsistency by calling
netif_carrier_on() when two netdevsim interfaces are linked.
This patch fixes buggy behavior on NetworkManager-based systems which
causes the netdevsim test to fail with the following error:
# timeout set to 600
# selftests: drivers/net/netdevsim: peer.sh
# 2025/12/25 00:54:03 socat[9115] W address is opened in read-write mode but only supports read-only
# 2025/12/25 00:56:17 socat[9115] W connect(7, AF=2 192.168.1.1:1234, 16): Connection timed out
# 2025/12/25 00:56:17 socat[9115] E TCP:192.168.1.1🔢 Connection timed out
# expected 3 bytes, got 0
# 2025/12/25 00:56:17 socat[9109] W exiting on signal 15
not ok 13 selftests: drivers/net/netdevsim: peer.sh # exit=1
This patch also solves timeout on TCP Fast Open (TFO) test in
NetworkManager-based systems because it also depends on netdevsim's
carrier consistency.
Fixes: 1a8fed52f7be ("netdevsim: set the carrier when the device goes up")
Signed-off-by: Yohei Kojima <yk@y-koj.net>
Reviewed-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/602c9e1ba5bb2ee1997bb38b1d866c9c3b807ae9.1767624906.git.yk@y-koj.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The pp_alloc_fail.py test (which doesn't run in NIPA CI?) uses tool, add
back the import.
Resolves:
ImportError: cannot import name 'tool' from 'lib.py'
Fixes: 68a052239fc4 ("selftests: drv-net: update remaining Python init files")
Reviewed-by: Nimrod Oren <noren@nvidia.com>
Signed-off-by: Gal Pressman <gal@nvidia.com>
Link: https://patch.msgid.link/20260105163319.47619-1-gal@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We expect the SFP write accessors to return the number of written bytes.
We fail to do so for single-byte smbus accesses, which may cause errors
when setting a module's high-power state and for some cotsworks modules.
Let's return the amount of written bytes, as expected.
Fixes: 7662abf4db94 ("net: phy: sfp: Add support for SMBus module access")
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260105151840.144552-1-maxime.chevallier@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This reverts commit 926eae604403acfa27ba5b072af458e87e634a50, which
never could have produced the intended effect:
https://lore.kernel.org/netdev/AM0PR06MB10396BBF8B568D77556FC46F8F7DEA@AM0PR06MB10396.eurprd06.prod.outlook.com/
The reason why it is broken beyond repair in this form is that the
mv88e6xxx driver outsources its "tx-p2p-microvolt" property to the OF
node of an external Ethernet PHY. This:
(a) does not work if there is no external PHY (chip-to-chip connection,
or SFP module)
(b) pollutes the OF property namespace / bindings of said external PHY
("tx-p2p-microvolt" could have meaning for the Ethernet PHY's SerDes
interface as well)
We can revisit the idea of making SerDes amplitude configurable once we
have proper bindings for the mv88e6xxx SerDes. Until then, remove the
code that leaves us with unnecessary baggage.
Fixes: 926eae604403 ("dsa: mv88e6xxx: make serdes SGMII/Fiber tx amplitude configurable")
Cc: Holger Brunck <holger.brunck@hitachienergy.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260104093952.486606-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add Raju Rangoju as an additional maintainer to support the AMD XGBE
network device driver.
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Acked-by: Raju Rangoju <Raju.Rangoju@amd.com>
Link: https://patch.msgid.link/20251211112831.1781030-1-Shyam-sundar.S-k@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
