- 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
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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
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
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()
...
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
...
- 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
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>
The Samsung SUR40 with Microsoft PixelSense is offically specified to
support 52 simultaneuous touch contacts, not 64. The value of 64 was an
unverified guess as noted by the FIXME comment. Update MAX_CONTACTS to
match the documented hardware specification and remove the FIXME.
Signed-off-by: Oliver <oliverburns.kernel@gmail.com>
Link: https://patch.msgid.link/20260614230847.4938-1-oliverburns.kernel@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
__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>
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>
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>
sysfb
- drm/sysfb truncation and alignment fixes.
edid:
- fix edid OOB read in tile parsing
- increase displayid topology id to correct size.
nouveau:
- fix error handling paths in nouveau
amdxdna:
- get_bo_info fix.
ivpu:
- fix leak when error handling in ivpu.
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Merge tag 'drm-fixes-2026-06-27' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"These are just the fixes from our fixes branch, all pretty small and
scattered.
sysfb:
- drm/sysfb truncation and alignment fixes
edid:
- fix edid OOB read in tile parsing
- increase displayid topology id to correct size
nouveau:
- fix error handling paths in nouveau
amdxdna:
- get_bo_info fix
ivpu:
- fix leak when error handling in ivpu"
* tag 'drm-fixes-2026-06-27' of https://gitlab.freedesktop.org/drm/kernel:
drm/sysfb: Avoid truncating maximum stride
drm/sysfb: Return errno code from drm_sysfb_get_visible_size()
drm/sysfb: Avoid possible truncation with calculating visible size
drm/sysfb: Do not page-align visible size of the framebuffer
drm/edid: fix OOB read in drm_parse_tiled_block()
drm/nouveau: fix reversed error cleanup order in ucopy functions
drm/nouveau/acr: fix missing nvkm_done() in error path of nvkm_acr_oneinit()
accel/amdxdna: Use caller client for debug BO sync
drm/displayid: fix Tiled Display Topology ID size
accel/ivpu: fix HWS command queue leak on registration failure
i915:
- Fix corrupted display output on GLK, #16209
- Add missing Spectre mitigation for parallel submit IOCTL
- MTL+ fix for DP resume
- clear CRTC blobs after dropping refs
- fix sharpness filter on DP MST
xe:
- Set TTM beneficial order to 9 in Xe
- Several error path cleanups
- Fix TDR for unstarted jobs on kernel queues
- Several TLB invalidation fixes related to suspending LR queues
- Some small RAS fixes
- Multi-queue suspend fix for LR queues
- Revert inclusion of NVL_S firmware
amdgpu:
- devcoredump fixes
- SMU15 fix
- Various irq put/get imbalance cleanup fixes
- 8K panel fix
- DCN3.5 fix
- lockdep fix
- Cleaner shader sysfs IB overflow fix
- Async flip fixes
- GET_MAPPING_INFO fix
- CP_GFX_SHADOW fix
- Ctx pstate handling fix
- GTT bo move handling fixes
- Old UVD BO placement fixes
- GC9 mode2 reset fix
- IH6.1 version fix
- Soft IH ring fix
amdkfd:
- Fix doorbell/mmio double unpin on free
- CRIU fixes
- SMI event fixes
- Sysfs teardown fix
- Various boundary checking fixes
- Various error checking fixes
- SVM fix
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Merge tag 'drm-next-2026-06-27' of https://gitlab.freedesktop.org/drm/kernel
Pull drm merge window fixes from Dave Airlie:
"This is the merge window fixes from our next tree, i915/xe and amdgpu
make up all of it.
I've got a separate fixes pull from our fixes branch arriving after
this.
i915:
- Fix corrupted display output on GLK, #16209
- Add missing Spectre mitigation for parallel submit IOCTL
- MTL+ fix for DP resume
- clear CRTC blobs after dropping refs
- fix sharpness filter on DP MST
xe:
- Set TTM beneficial order to 9 in Xe
- Several error path cleanups
- Fix TDR for unstarted jobs on kernel queues
- Several TLB invalidation fixes related to suspending LR queues
- Some small RAS fixes
- Multi-queue suspend fix for LR queues
- Revert inclusion of NVL_S firmware
amdgpu:
- devcoredump fixes
- SMU15 fix
- Various irq put/get imbalance cleanup fixes
- 8K panel fix
- DCN3.5 fix
- lockdep fix
- Cleaner shader sysfs IB overflow fix
- Async flip fixes
- GET_MAPPING_INFO fix
- CP_GFX_SHADOW fix
- Ctx pstate handling fix
- GTT bo move handling fixes
- Old UVD BO placement fixes
- GC9 mode2 reset fix
- IH6.1 version fix
- Soft IH ring fix
amdkfd:
- Fix doorbell/mmio double unpin on free
- CRIU fixes
- SMI event fixes
- Sysfs teardown fix
- Various boundary checking fixes
- Various error checking fixes
- SVM fix"
* tag 'drm-next-2026-06-27' of https://gitlab.freedesktop.org/drm/kernel: (52 commits)
drm/i915/cdclk: Fix up CDCLK_FREQ_DECIMAL without a full PLL re-enable
drm/i915/gem: Add missing nospec on parallel submit slot
drm/amdgpu: Use system unbound workqueue for soft IH ring
amdgpu/ih6.1: Fix minor version
drm/amdkfd: Use exclusive bounds for SVM split alignment checks
drm/amdgpu/gfx9: Fix Ring and IB test fail after mode2
drm/amdgpu/uvd: Fix forcing MSG, FB BOs into VCPU segment when it isn't at 0 (v2)
drm/amdgpu/uvd: Place VCPU BO only in VRAM for UVD 4.x and older
drm/amdgpu: Fix amdgpu_bo_move() when old_mem and new_mem are both GTT
drm/amdgpu: Respect placement requirements in amdgpu_gtt_mgr functions
drm/amdgpu: Fix context pstate override handling
drm/amdkfd: Use memdup_array_user to copy data from/to user space at kfd ioctls
drm/amdkfd: check find_first_zero_bit before __set_bit on kfd->doorbell_bitmap
drm/amdkfd: Let driver decide buffer size at AMDKFD_IOC_GET_DMABUF_INFO ioctl
drm/amdgpu: fix recursive ww_mutex acquire in amdgpu_devcoredump_format
drm/amdgpu: convert amdgpu_vm_lock_by_pasid() to drm_exec
drm/amdgpu: Don't use UTS_RELEASE directly
drm/amdkfd: Fix NULL deref during sysfs teardown
drm/amdgpu: validate CP_GFX_SHADOW chunk size in CS pass1
drm/amdgpu: check amdgpu_vm_bo_find() result in GET_MAPPING_INFO
...
operators to get out of tricky livelock situations involving caps and
file locks without evicting the problematic client instance on the MDS
side or rebooting the client node both of which can be disruptive.
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Merge tag 'ceph-for-7.2-rc1' of https://github.com/ceph/ceph-client
Pull ceph updates from Ilya Dryomov:
"This adds support for manual client session reset in CephFS, allowing
operators to get out of tricky livelock situations involving caps and
file locks without evicting the problematic client instance on the MDS
side or rebooting the client node both of which can be disruptive"
* tag 'ceph-for-7.2-rc1' of https://github.com/ceph/ceph-client:
ceph: add manual reset debugfs control and tracepoints
ceph: add client reset state machine and session teardown
ceph: add diagnostic timeout loop to wait_caps_flush()
ceph: harden send_mds_reconnect and handle active-MDS peer reset
ceph: use proper endian conversion for flock_len in reconnect
ceph: convert inode flags to named bit positions and atomic bitops
rbd: switch to dynamic root device
Four example schedulers (scx_simple, scx_cpu0, scx_sdt, scx_userland)
declare the variable that holds getopt()'s return value as __u32.
getopt() returns int and uses -1 to mark end-of-options; storing that
sentinel in an unsigned variable turns it into 0xffffffff, and the
subsequent 'opt != -1' test only happens to keep working because both
operands of != are promoted to the same 0xffffffff.
Declare the variable as __s32 instead, matching getopt()'s actual
contract and the style already used in scx_qmap.c (int opt) and
scx_pair/central/flatcg.c (__s32 opt). This also silences the
-Wsign-compare warnings emitted for the affected files.
Signed-off-by: Liang Luo <luoliang@kylinos.cn>
Signed-off-by: Tejun Heo <tj@kernel.org>
- Fix dangling resources on thermal_throttle_online() failure in the
Intel thermal_throttle driver (Ricardo Neri)
- Eliminate a possibility of running thermal testing module code after
that module has been removed (Rafael Wysocki)
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Merge tag 'thermal-7.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control fixes from Rafael Wysocki:
"These fix a failure path in an Intel thermal driver and prevent
thermal testing module code from being executed after it has been
freed:
- Fix dangling resources on thermal_throttle_online() failure in the
Intel thermal_throttle driver (Ricardo Neri)
- Eliminate a possibility of running thermal testing module code
after that module has been removed (Rafael Wysocki)"
* tag 'thermal-7.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: testing: zone: Flush work items during cleanup
thermal: intel: Fix dangling resources on thermal_throttle_online() failure
The ISA1200 is a haptic feedback unit from Imagis Technology using two
motors for haptic feedback in mobile phones. Used in many mobile devices
c. 2012 including Samsung Galxy S Advance GT-I9070 (Janice), Samsung Beam
GT-I8350 (Gavini), LG Optimus 4X P880 and LG Optimus Vu P895.
The exact datasheet for the ISA1200 is not available; all data was modeled
based on available downstream kernel sources for various devices and
fragments of information scattered across the internet.
Tested-by: Linus Walleij <linusw@kernel.org> # GT-I9070 Janice
Signed-off-by: Linus Walleij <linusw@kernel.org>
Co-developed-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Link: https://patch.msgid.link/20260617070528.35006-3-clamor95@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Document the Imagis ISA1200 haptic motor driver, used primarily in mobile
handheld devices and capable of supporting up to two motors.
The exact datasheet for the ISA1200 is not available; all data was modeled
based on available downstream kernel sources for various devices and
fragments of information scattered across the internet.
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20260617070528.35006-2-clamor95@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
- Remove a misguided warning along with an inaccurate comment next to
it from the cpuidle core (Rafael Wysocki)
- Clear need_freq_update as appropriate in the .adjust_perf()
path of the schedutil cpufreq governor to avoid calling
cpufreq_driver_adjust_perf() unnecessarily on every scheduler
utilization update (Zhongqiu Han)
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Merge tag 'pm-7.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix the schedutil cpufreq governor and drop a bogus warning
from the cpuidle core:
- Remove a misguided warning along with an inaccurate comment
next to it from the cpuidle core (Rafael Wysocki)
- Clear need_freq_update as appropriate in the .adjust_perf()
path of the schedutil cpufreq governor to avoid calling
cpufreq_driver_adjust_perf() unnecessarily on every scheduler
utilization update (Zhongqiu Han)"
* tag 'pm-7.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpuidle: Allow exit latency to exceed target residency
cpufreq: schedutil: Fix uncleared need_freq_update on the .adjust_perf() path
- Unbreak ACPICA tools builds after switching over to using
strscpy_pad() that is kernel-specific (Rafael Wysocki)
- Fix module parameter file paths in comments in the ACPI code managing
the general sysfs attributes (Zenghui Yu)
- Update kerneldoc comments in the ACPI resource management code to
follow the common style (Andy Shevchenko)
- Fix inverted interface check in ipmi_bmc_gone() that may cause ACPI
IPMI interfaces to be mishandled (Xu Rao)
- Add __cpuidle annotation to idle state management functions related
to ACPI _LPI to avoid trace-induced RCU warnings (Li RongQing)
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Merge tag 'acpi-7.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI support fixes and cleanups from Rafael Wysocki:
"These fix assorted issues and do cleanups in the ACPI support code,
which includes a fix for tools build breakage related to strncpy()
removal:
- Unbreak ACPICA tools builds after switching over to using
strscpy_pad() that is kernel-specific (Rafael Wysocki)
- Fix module parameter file paths in comments in the ACPI code
managing the general sysfs attributes (Zenghui Yu)
- Update kerneldoc comments in the ACPI resource management code to
follow the common style (Andy Shevchenko)
- Fix inverted interface check in ipmi_bmc_gone() that may cause ACPI
IPMI interfaces to be mishandled (Xu Rao)
- Add __cpuidle annotation to idle state management functions related
to ACPI _LPI to avoid trace-induced RCU warnings (Li RongQing)"
* tag 'acpi-7.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: processor_idle: Mark LPI enter functions as __cpuidle
ACPICA: Unbreak tools build after switching over to strscpy_pad()
ACPI: IPMI: Fix inverted interface check in ipmi_bmc_gone()
ACPI: resource: Amend kernel-doc style
ACPI: sysfs: Fix path of module parameters in comments
As was recently noted on the rust-for-linux list, the usb.rs file is not
listed as part of the USB SUBSYSTEM files, which can cause changes to it
to be not sent to the proper list and people. Fix this up by adding it
to the USB SUBSYSTEM file list
Reported-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/2026062533-achiness-outsell-a93a@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
A fairly unremarkable collection of fixes that came in over the merge
window, plus a new device ID for the DesignWare controller in the
StarFive JHB100 SoC. There's a couple of core fixes included, one
avoiding freeing an empty resource in error handling cases and another
which fixes a NULL dereference which could be triggered by using an
abnormal device registration flow like driver_override.
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Merge tag 'spi-fix-v7.2-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A fairly unremarkable collection of fixes that came in over the
merge window, plus a new device ID for the DesignWare controller
in the StarFive JHB100 SoC.
There's a couple of core fixes included, one avoiding freeing an
empty resource in error handling cases and another which fixes a
NULL dereference which could be triggered by using an abnormal
device registration flow like driver_override"
* tag 'spi-fix-v7.2-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: imx: reconfigure for PIO when DMA cannot be started
spi: dw: Add support for snps,dwc-ssi-2.00a
spi: dt-bindings: snps,dw-apb-ssi: Add starfive,jhb100-spi
spi: rpc-if: Use correct device for hardware reinitialization on resume
spi: acpi: Free resource list at appropriate time
spi: dw: fix wrong BAUDR setting after resume
spi: uniphier: Fix completion initialization order before devm_request_irq()
spi: Add NULL check for spi_get_device_id() in spi_get_device_match_data()
A couple of unremarkable driver specific fixes that came in during the
merge window.
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Merge tag 'regulator-fix-v7.2-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"A couple of unremarkable driver specific fixes that came in during the
merge window"
* tag 'regulator-fix-v7.2-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: da9121: Use subvariant ids in the I2C table
regulator: pca9450: Correct default t_off_deb for PCA9451A/PCA9452
The Synaptics touchpad on Dell Inspiron 3521 (PNP ID DLL0597) advertises
InterTouch / SMBus support, but is not on the SMBus passlist, so the
driver falls back to PS/2 and logs a hint to try
psmouse.synaptics_intertouch=1.
Add DLL0597 to smbus_pnp_ids so InterTouch is enabled automatically on
this model (and other Dells that reuse the same PNP ID).
Hardware: Dell Inc. Inspiron 3521 (board 06RYX8, BIOS A07),
Synaptics fw 8.1 / board id 2382, firmware_id "PNP: DLL0597 PNP0f13".
Signed-off-by: Shashwat Agrawal <shashwatagrawal473@gmail.com>
Link: https://patch.msgid.link/20260626130051.2574-1-shashwatagrawal473@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
