Commit graph

1,399,042 commits

Author SHA1 Message Date
Hao Li
385d358a0e Bluetooth: btusb: Add RTL8852BE device 0x13d3:0x3618
The information in /sys/kernel/debug/usb/devices about the Bluetooth
device is listed as the below:

T:  Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#=  2 Spd=12   MxCh= 0
D:  Ver= 1.00 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=13d3 ProdID=3618 Rev= 0.00
S:  Manufacturer=Realtek
S:  Product=Bluetooth Radio
S:  SerialNumber=00e04c000001
C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms

Signed-off-by: Hao Li <lihao1@uniontech.com>
Signed-off-by: WangYuli <wangyuli@uniontech.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-07-23 10:28:46 -04:00
Zhongqiu Han
b505902c66 Bluetooth: btusb: Fix potential NULL dereference on kmalloc failure
Avoid potential NULL pointer dereference by checking the return value of
kmalloc and handling allocation failure properly.

Fixes: 7d70989fce ("Bluetooth: btusb: Add HCI Drv commands for configuring altsetting")
Signed-off-by: Zhongqiu Han <quic_zhonhan@quicinc.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-07-23 10:28:30 -04:00
Catalin Popescu
636c803f92 Bluetooth: btnxpuart: implement powerup sequence
NXP bluetooth chip shares power supply and reset gpio with a WLAN
chip. Add support for power supply and reset and enforce powerup
sequence:
- apply power supply
- deassert reset/powerdown

Signed-off-by: Catalin Popescu <catalin.popescu@leica-geosystems.com>
Reviewed-by: Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-07-23 10:28:14 -04:00
Catalin Popescu
18afbdcd12 dt-bindings: net: bluetooth: nxp: add support for supply and reset
Add support for chip power supply and chip reset/powerdown.

Signed-off-by: Catalin Popescu <catalin.popescu@leica-geosystems.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-07-23 10:28:00 -04:00
Yang Li
be31d11ec9 Bluetooth: Fix spelling mistakes
Correct the misspelling of “estabilished” in the code.

Signed-off-by: Yang Li <yang.li@amlogic.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-07-23 10:27:33 -04:00
Yang Li
b2a5f2e1c1 Bluetooth: hci_event: Add support for handling LE BIG Sync Lost event
When the BIS source stops, the controller sends an LE BIG Sync Lost
event (subevent 0x1E). Currently, this event is not handled, causing
the BIS stream to remain active in BlueZ and preventing recovery.

Signed-off-by: Yang Li <yang.li@amlogic.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-07-23 10:27:04 -04:00
Neeraj Sanjay Kale
45b54f007d Bluetooth: btnxpuart: Add support for 4M baudrate
This adds support for 4000000 as secondary baudrate.

This value is selected from device tree property "max-speed"
which is then used to download FW chunks, and as operational baudrate after
HCI initialization is done.

Earlier, the secondary baudrate was fixed to 3000000 in driver, but now
with "max-speed" property, this secondary baudrate can be set to
4000000.

The secondary baudrate is set by the driver by sending a vendor command
(3F 09) to the firmware, with secondary baudrate parameter, in
nxp_post_init().

Any other value set for max-speed other than 3000000 or 4000000 will
default to 3000000, which is supported by all legacy and new NXP chipsets.

This feature is applicable for all new V3 bootloader chips and w8987 V1
bootloader chip.

This property does not apply for w8997 compatible device, since it
downloads a helper.bin FW file that sets secondary baudrate as 3000000
only.

The switch to 4000000 baudrate is validated using a Saleae Logic Analyzer
and imx8m-mini with AW693 M.2 module.

Signed-off-by: Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-07-23 10:26:48 -04:00
Neeraj Sanjay Kale
4112e29a33 dt-bindings: net: bluetooth: nxp: Add support for 4M baudrate
Add support for 4000000 as secondary baudrate for NXP chipsets
supporting max baudrate as 4M, and are close to the host processor on
same PCB. This mainly helps with faster FW download.

Signed-off-by: Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-07-23 10:26:33 -04:00
Zijun Hu
e44328c99b Bluetooth: hci_event: Correct comment about HCI_EV_EXTENDED_INQUIRY_RESULT
HCI_EV_EXTENDED_INQUIRY_RESULT's comment wrongly uses 0x2d as its event
code.

Use right 0x2f instead.

Signed-off-by: Zijun Hu <zijun.hu@oss.qualcomm.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-07-23 10:26:18 -04:00
Zijun Hu
88d6ba89d8 Bluetooth: hci_core: Eliminate an unnecessary goto label in hci_find_irk_by_addr()
Eliminate an unnecessary goto label by using break instead of goto to
exit the loop in hci_find_irk_by_addr().

Signed-off-by: Zijun Hu <zijun.hu@oss.qualcomm.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-07-23 10:26:04 -04:00
Zijun Hu
da0186f19a Bluetooth: hci_sync: Use bt_dev_err() to log error message in hci_update_event_filter_sync()
Use bt_dev_err() instead of bt_dev_dbg() to log error message in
hci_update_event_filter_sync().

Signed-off-by: Zijun Hu <zijun.hu@oss.qualcomm.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-07-23 10:25:49 -04:00
Zijun Hu
4d7936e8a5 Bluetooth: hci_sock: Reset cookie to zero in hci_sock_free_cookie()
Reset cookie value to 0 instead of 0xffffffff in hci_sock_free_cookie()
since:
0         :  means cookie has not been assigned yet
0xffffffff:  means cookie assignment failure

Also fix generating cookie failure with usage shown below:
hci_sock_gen_cookie(sk)   // generate cookie
hci_sock_free_cookie(sk)  // free cookie
hci_sock_gen_cookie(sk)   // Can't generate cookie any more

Signed-off-by: Zijun Hu <zijun.hu@oss.qualcomm.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-07-23 10:25:34 -04:00
Zijun Hu
b47c97f2ed Bluetooth: hci_qca: Enable ISO data packet RX
Enable ISO data packet RX for LE audio.

Signed-off-by: Zijun Hu <zijun.hu@oss.qualcomm.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-07-23 10:25:19 -04:00
Kiran K
6053b532d3 Bluetooth: btintel_pcie: Add support for device 0x4d76
lspci -v -k -d  8086:4d76
00:14.7 Bluetooth: Intel Corporation Device 4d76
        Subsystem: Intel Corporation Device 0011
        Flags: fast devsel, IRQ 255, IOMMU group 12
        Memory at 13013328000 (64-bit, non-prefetchable) [disabled] [size=16K]
        Capabilities: [c8] Power Management version 3
        Capabilities: [d0] MSI: Enable- Count=1/1 Maskable- 64bit+
        Capabilities: [40] Express Root Complex Integrated Endpoint, MSI 00
        Capabilities: [80] MSI-X: Enable- Count=32 Masked-
        Capabilities: [100] Latency Tolerance Reporting
        Kernel driver in use: btintel_pcie
        Kernel modules: btintel_pcie

Signed-off-by: Kiran K <kiran.k@intel.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-07-23 10:25:03 -04:00
Yue Haibing
70c672f933 Bluetooth: Remove hci_conn_hash_lookup_state()
Since commit 4aa42119d9 ("Bluetooth: Remove pending ACL connection
attempts") this function is unused.

Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-07-23 10:24:41 -04:00
Haochen Tong
7ed1d46c6b Bluetooth: btusb: Add a new VID/PID 2c7c/7009 for MT7925
Adds a new entry with VID 2c7c and PID 7009 for MediaTek MT7925
Bluetooth chip.

The device information from /sys/kernel/debug/usb/devices is provided
below.

T:  Bus=03 Lev=01 Prnt=01 Port=04 Cnt=02 Dev#=  3 Spd=480  MxCh= 0
D:  Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=2c7c ProdID=7009 Rev= 1.00
S:  Manufacturer=MediaTek Inc.
S:  Product=Wireless_Device
S:  SerialNumber=000000000
C:* #Ifs= 3 Cfg#= 1 Atr=e0 MxPwr=100mA
A:  FirstIf#= 0 IfCount= 3 Cls=e0(wlcon) Sub=01 Prot=01
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=125us
E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
I:  If#= 1 Alt= 6 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  63 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  63 Ivl=1ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=(none)
E:  Ad=8a(I) Atr=03(Int.) MxPS=  64 Ivl=125us
E:  Ad=0a(O) Atr=03(Int.) MxPS=  64 Ivl=125us
I:  If#= 2 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=(none)
E:  Ad=8a(I) Atr=03(Int.) MxPS= 512 Ivl=125us
E:  Ad=0a(O) Atr=03(Int.) MxPS= 512 Ivl=125us

Signed-off-by: Haochen Tong <i@hexchain.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-07-23 10:24:26 -04:00
Luiz Augusto von Dentz
171fccce45 Bluetooth: btintel_pcie: Reword restart to recovery
This rewords the term restart with recovery since the intend is for
hardware recovery not a regular restart, also remove some debug logs
which might just clutter the output informing the recovery counter which
isn't really useful for regular users.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-07-23 10:24:11 -04:00
Chandrashekar Devegowda
256ab9520d Bluetooth: btintel_pcie: Support Function level reset
The driver supports Function Level Reset (FLR) to recover the controller
upon hardware exceptions or hci command timeouts. FLR is triggered only
when no prior reset has occurred within the retry window, with a maximum
of one FLR allowed within this window.

This patch is tested by,
echo 1 >  /sys/class/bluetooth/hciX/reset

Signed-off-by: Chandrashekar Devegowda <chandrashekar.devegowda@intel.com>
Signed-off-by: Kiran K <kiran.k@intel.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-07-23 10:23:57 -04:00
Satyanarayana K V P
916ee4704a drm/xe/vf: Register CCS read/write contexts with Guc
Register read write contexts with newly added flags with GUC and
enable the context immediately after registration.
Re-register the context with Guc when resuming from runtime suspend as
soft reset is applied to Guc during xe_pm_runtime_resume().
Make Ring head=tail while unbinding device to avoid issues with VF pause
after device is unbinded.

Signed-off-by: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20250722120506.6483-4-satyanarayana.k.v.p@intel.com
2025-07-23 07:22:34 -07:00
Satyanarayana K V P
864690cf4d drm/xe/vf: Attach and detach CCS copy commands with BO
Attach CCS read/write copy commands to BO for old and new mem types as
NULL -> tt or system -> tt.
Detach the CCS read/write copy commands from BO while deleting ttm bo
from xe_ttm_bo_delete_mem_notify().

Signed-off-by: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20250722120506.6483-3-satyanarayana.k.v.p@intel.com
2025-07-23 07:22:31 -07:00
Satyanarayana K V P
f3009272ff drm/xe/vf: Create contexts for CCS read write
Create two LRCs to handle CCS meta data read / write from CCS pool in the
VM. Read context is used to hold GPU instructions to be executed at save
time and write context is used to hold GPU instructions to be executed at
the restore time.

Allocate batch buffer pool using suballocator for both read and write
contexts.

Migration framework is reused to create LRCAs for read and write.

Signed-off-by: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20250722120506.6483-2-satyanarayana.k.v.p@intel.com
2025-07-23 07:22:28 -07:00
Uwe Kleine-König
65b0dca6f9 Bluetooth: btusb: Add support for variant of RTL8851BE (USB ID 13d3:3601)
Teach the btusb driver to recognize another variant of the RTL8851BE
bluetooth radio.

/sys/kernel/debug/usb/devices reports for that device:

	T:  Bus=03 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#=  2 Spd=12   MxCh= 0
	D:  Ver= 1.00 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
	P:  Vendor=13d3 ProdID=3601 Rev= 0.00
	S:  Manufacturer=Realtek
	S:  Product=Bluetooth Radio
	S:  SerialNumber=00e04c000001
	C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=500mA
	I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
	E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
	E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
	E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
	I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
	E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
	E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
	I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
	E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
	E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
	I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
	E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
	E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
	I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
	E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
	E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
	I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
	E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
	E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
	I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
	E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
	E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms
	I:  If#= 1 Alt= 6 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
	E:  Ad=03(O) Atr=01(Isoc) MxPS=  63 Ivl=1ms
	E:  Ad=83(I) Atr=01(Isoc) MxPS=  63 Ivl=1ms

Reported-by: shdeb <shdeb3000000@gmail.com>
Link: https://bugs.debian.org/1106386
Signed-off-by: Uwe Kleine-König <ukleinek@debian.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-07-23 10:21:22 -04:00
Zenm Chen
d9da920233 Bluetooth: btusb: Add USB ID 3625:010b for TP-LINK Archer TX10UB Nano
Add USB ID 3625:010b for TP-LINK Archer TX10UB Nano which is based on
a Realtek RTL8851BU chip.

The information in /sys/kernel/debug/usb/devices about the Bluetooth
device is listed as the below:

T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 9 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=3625 ProdID=010b Rev= 0.00
S: Manufacturer=Realtek
S: Product=802.11ax WLAN Adapter
S: SerialNumber=00e04c000001
C:* #Ifs= 3 Cfg#= 1 Atr=e0 MxPwr=500mA
A: FirstIf#= 0 IfCount= 2 Cls=e0(wlcon) Sub=01 Prot=01
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms
I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms
I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms
I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms
I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms
I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms
I: If#= 1 Alt= 6 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 63 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 63 Ivl=1ms
I:* If#= 2 Alt= 0 #EPs= 8 Cls=ff(vend.) Sub=ff Prot=ff Driver=rtl8851bu
E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=07(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=09(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=0a(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=0b(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=0c(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms

Cc: stable@vger.kernel.org
Signed-off-by: Zenm Chen <zenmchen@gmail.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-07-23 10:17:09 -04:00
Luca Weiss
c58c35ef6a
ASoC: qcom: sm8250: Add Fairphone 4 soundcard compatible
Add a compatible for the SM7225-based Fairphone 4 which can use this
machine driver.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Link: https://patch.msgid.link/20250723-fp4-usb-audio-offload-v3-3-6be84ed4fc39@fairphone.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-07-23 15:09:30 +01:00
Luca Weiss
d664e75317
ASoC: dt-bindings: qcom,sm8250: Add Fairphone 4 sound card
Document the bindings for the sound card on Fairphone 4 which uses the
older non-audioreach audio architecture.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Link: https://patch.msgid.link/20250723-fp4-usb-audio-offload-v3-2-6be84ed4fc39@fairphone.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-07-23 15:09:29 +01:00
Luca Weiss
b102c9d89f
ASoC: dt-bindings: qcom,q6afe: Document q6usb subnode
Document the subnode for Q6USB, used for USB audio offloading.

Cc: Wesley Cheng <quic_wcheng@quicinc.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Link: https://patch.msgid.link/20250723-fp4-usb-audio-offload-v3-1-6be84ed4fc39@fairphone.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-07-23 15:09:28 +01:00
Dmitry Baryshkov
92e34a5241 drm/display: bridge-connector: correct CEC bridge pointers in drm_bridge_connector_init
The bridge used in drm_bridge_connector_init() for CEC init does not
correctly point to the required HDMI CEC bridge, which can lead to
errors during CEC initialization.

Fixes: 65a2575a68 ("drm/display: bridge-connector: hook in CEC notifier support")
Fixes: a74288c8de ("drm/display: bridge-connector: handle CEC adapters")
Reported-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Closes: http://lore.kernel.org/r/20250718164156.194702d9@booty/
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Link: https://lore.kernel.org/r/20250719-fix-cec-bridges-v1-1-a60b1333c87d@oss.qualcomm.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-07-23 16:30:26 +03:00
Aakash Deep Sarkar
fd77b2c1b6
drm/i915/display: Fix dma_fence_wait_timeout() return value handling
dma_fence_wait_timeout returns a long type but the driver is
only using the lower 32 bits of the retval and discarding the
upper 32 bits.

This is particularly problematic if there are already signalled
or stub fences on some of the hw planes. In this case the
dma_fence_wait_timeout function will immediately return with
timeout value MAX_SCHEDULE_TIMEOUT (0x7fffffffffffffff) since
the fence is already signalled. If the driver only uses the lower
32 bits of this return value then it'll interpret it as an error
code (0xFFFFFFFF or (-1)) and skip the wait on the remaining fences.

This issue was first observed in the xe driver with the Android
compositor where the GPU composited layer was not properly waited
on when there were stub fences in other overlay planes resulting in
visual artifacts.

Fixes: d59cf7bb73 ("drm/i915/display: Use dma_fence interfaces instead of i915_sw_fence")
Signed-off-by: Aakash Deep Sarkar <aakash.deep.sarkar@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://lore.kernel.org/r/20250708074540.1948068-1-aakash.deep.sarkar@intel.com
(cherry picked from commit cdb1603951)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2025-07-23 09:12:22 -04:00
Lukasz Laguna
9a220e0659
drm/xe/vf: Don't register I2C devices if VF
VF drivers can't access I2C devices, so skip their registration when
running as VF.

Signed-off-by: Lukasz Laguna <lukasz.laguna@intel.com>
Fixes: f0e53aadd7 ("drm/xe: Support for I2C attached MCUs")
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://lore.kernel.org/r/20250717155420.25298-1-lukasz.laguna@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2025-07-23 09:10:53 -04:00
Lorenzo Stoakes
425c8bb39b
doc: update porting, vfs documentation to describe mmap_prepare()
Now that we have established .mmap_prepare() as the preferred means by
which filesystems establish state upon memory mapping of a file, update the
VFS and porting documentation to reflect this.

As part of this change, additionally update the VFS documentation to
contain the current state of the file_operations struct.

Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Link: https://lore.kernel.org/20250723123036.35472-1-lorenzo.stoakes@oracle.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-07-23 15:09:14 +02:00
Yue Haibing
4e8fc4f720
netfs: Remove unused declaration netfs_queue_write_request()
Commit c245868524 ("netfs: Remove the old writeback code") removed
the implementation but leave declaration.

Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/20250723122329.923223-1-yuehaibing@huawei.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-07-23 15:08:36 +02:00
Jann Horn
ecb6cc0fd8
eventpoll: fix sphinx documentation build warning
Sphinx complains that ep_get_upwards_depth_proc() has a kerneldoc-style
comment without documenting its parameters.
This is an internal function that was not meant to show up in kernel
documentation, so fix the warning by changing the comment to a
non-kerneldoc one.

Fixes: 22bacca48a ("epoll: prevent creating circular epoll structures")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/r/20250717173655.10ecdce6@canb.auug.org.au
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202507171958.aMcW08Cn-lkp@intel.com/
Signed-off-by: Jann Horn <jannh@google.com>
Link: https://lore.kernel.org/20250721-epoll-sphinx-fix-v1-1-b695c92bf009@google.com
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-07-23 15:00:13 +02:00
Anuj Gupta
bc5b0c8feb
block: fix lbmd_guard_tag_type assignment in FS_IOC_GETLBMD_CAP
The blk_get_meta_cap() implementation directly assigns bi->csum_type to
the UAPI field lbmd_guard_tag_type. This is not right as the kernel enum
blk_integrity_checksum values are not guaranteed to match the UAPI
defined values.

Fix this by explicitly mapping internal checksum types to UAPI-defined
constants to ensure compatibility and correctness, especially for the
devices using CRC64 PI.

Fixes: 9eb22f7fed ("fs: add ioctl to query metadata and protection info capabilities")
Reported-by: Vincent Fu <vincent.fu@samsung.com>
Signed-off-by: Anuj Gupta <anuj20.g@samsung.com>
Link: https://lore.kernel.org/20250722120755.87501-1-anuj20.g@samsung.com
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-07-23 14:55:51 +02:00
Frank Li
e3a9ccd218 dt-bindings: dma: fsl-mxs-dma: allow interrupt-names for fsl,imx23-dma-apbx
Allow interrupt-names for fsl,imx23-dma-apbx and keep the same restriction
for others.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20250523213252.582366-1-Frank.Li@nxp.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2025-07-23 17:55:32 +05:30
Robert Marko
e56982021f dmaengine: xdmac: make it selectable for ARCH_MICROCHIP
LAN969x uses the Atmel XDMAC, so make it selectable for ARCH_MICROCHIP to
avoid needing to update depends in future if other Microchip SoC-s use it
as well.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Link: https://lore.kernel.org/r/20250702183856.1727275-9-robert.marko@sartura.hr
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2025-07-23 17:55:32 +05:30
Rob Herring (Arm)
245dd180ac dt-bindings: dma: Convert marvell,orion-xor to DT schema
Convert the Marvell Orion XOR engine binding to schema.

The "clocks" property is optional for some platforms (though not
distinguished by compatble). The child node names used are 'channel' or
'xor'.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250703155912.1713518-1-robh@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2025-07-23 17:55:32 +05:30
Rob Herring (Arm)
ec896de28c dt-bindings: dma: Convert brcm,iproc-sba to DT schema
Convert the Broadcom SBA RAID engine binding to schema. It is a straight
forward conversion.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250702222616.2760974-1-robh@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2025-07-23 17:55:32 +05:30
Thomas Fourier
c6ee78fc8f dmaengine: nbpfaxi: Add missing check after DMA map
The DMA map functions can fail and should be tested for errors.
If the mapping fails, unmap and return an error.

Fixes: b45b262cef ("dmaengine: add a driver for AMBA AXI NBPF DMAC IP cores")
Signed-off-by: Thomas Fourier <fourier.thomas@gmail.com>
Link: https://lore.kernel.org/r/20250707075752.28674-2-fourier.thomas@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2025-07-23 17:55:32 +05:30
Thomas Fourier
60095aca6b dmaengine: mv_xor: Fix missing check after DMA map and missing unmap
The DMA map functions can fail and should be tested for errors.

In case of error, unmap the already mapped regions.

Fixes: 22843545b2 ("dma: mv_xor: Add support for DMA_INTERRUPT")
Signed-off-by: Thomas Fourier <fourier.thomas@gmail.com>
Link: https://lore.kernel.org/r/20250701123753.46935-2-fourier.thomas@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2025-07-23 17:55:32 +05:30
Johannes Berg
3630f04330 iwlwifi feature, notably
- disable features in fips
 - remove RX OMI feature code
 - A few fixes and cleanups
 -----BEGIN PGP SIGNATURE-----
 
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Merge tag 'iwlwifi-next-2025-07-23' of https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

Miri Korenblit says:
====================
iwlwifi feature, notably

- disable features in fips
- remove RX OMI feature code
- A few fixes and cleanups
====================

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-07-23 14:13:27 +02:00
Liu Song
26b1d003c6 wifi: brcmsmac: Use str_true_false() helper
Remove hard-coded strings by using the str_true_false() helper function.

Signed-off-by: Liu Song <liu.song13@zte.com.cn>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>>
Link: https://patch.msgid.link/20250723173004776P6QSjcW7NrlpGYLTFM-yP@zte.com.cn
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-07-23 14:11:28 +02:00
Ting-Ying Li
f2d7c3c380 wifi: brcmfmac: fix EXTSAE WPA3 connection failure due to AUTH TX failure
For WPA3-SAE Connection in EXTSAE mode, the userspace daemon is allowed to
generate the SAE Auth frames. The driver uses the "mgmt_frame" FW IOVAR to
transmit this MGMT frame.

Before sending the IOVAR, the Driver is incorrectly treating the channel
number read from the FW as a frequency value and again attempts to convert
this into a channel number using ieee80211_frequency_to_channel().

This added an invalid channel number as part of the IOVAR request to the FW
And some FW which strictly expects a valid channel would return BAD_CHAN
error, while failing to transmit the driver requested SAE Auth MGMT frame.

Fix this in the CYW vendor specific MGMT TX cfg80211 ops handler, by not
treating the channel number read from the FW as frequency value and skip
the attempt to convert it again into a channel number.

Also fix this in the generic MGMT TX cfg80211 ops handler.

Fixes: c2ff8cad64 ("brcm80211: make mgmt_tx in brcmfmac accept a NULL channel")
Fixes: 66f909308a ("wifi: brcmfmac: cyw: support external SAE authentication in station mode")
Signed-off-by: Ting-Ying Li <tingying.li@cypress.com>
Signed-off-by: Gokul Sivakumar <gokulkumar.sivakumar@infineon.com>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>>
Link: https://patch.msgid.link/20250723105918.5229-1-gokulkumar.sivakumar@infineon.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-07-23 14:11:16 +02:00
Dr. David Alan Gilbert
cb10602744 wifi: brcm80211: Remove yet more unused functions
This is a subset of unused functions in bcrmsmac phy_cmn.c,
They're unused since the original 2010
commit a9533e7ea3 ("Staging: Add initial release of brcm80211 - Broadcom
802.11n wireless LAN driver.")

Remove them.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>>
Link: https://patch.msgid.link/20250626140812.56700-4-linux@treblig.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-07-23 14:11:02 +02:00
Dr. David Alan Gilbert
b83c7f4971 wifi: brcm80211: Remove more unused functions
This is a subset of unused functions in bcrmsmac phy_cmn.c,
They're unused since the original 2010
commit a9533e7ea3 ("Staging: Add initial release of brcm80211 - Broadcom
802.11n wireless LAN driver.")

Remove them.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>>
Link: https://patch.msgid.link/20250626140812.56700-3-linux@treblig.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-07-23 14:10:59 +02:00
Dr. David Alan Gilbert
9edf3f855b wifi: brcm80211: Remove unused functions
This is a subset of unused functions in bcrmsmac phy_cmn.c,
They're unused since the original 2010
commit a9533e7ea3 ("Staging: Add initial release of brcm80211 - Broadcom
802.11n wireless LAN driver.")

Remove them.
Then remove two more functions in phy_n.c that were only used
by the ones just removed.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>>
Link: https://patch.msgid.link/20250626140812.56700-2-linux@treblig.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-07-23 14:10:55 +02:00
Gabor Juhos
1f590fa4b9
spi: spi-qpic-snand: simplify bad block marker duplication
Due to the expectations of the SPINAND code, the driver duplicates
the bad block markers during raw OOB reads.

It has been implemented by using two if statements, and due to the
opposite conditions one of conditional codepaths always runs. Since
the effect of both codepaths is the same, remove the if statements
and use a single line solution instead.

Also add a note about why the duplication is required.

No functional changes intended.

Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
Link: https://patch.msgid.link/20250711-qpic-snand-simplify-bbm-copy-v1-1-dd2608325f72@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-07-23 13:04:08 +01:00
Gabor Juhos
f820034864
spi: spi-qpic-snand: don't hardcode ECC steps
NAND devices with different page sizes requires different number
of ECC steps, yet the qcom_spi_ecc_init_ctx_pipelined() function
sets 4 steps in 'ecc_cfg' unconditionally.

The correct number of the steps is calculated earlier in the
function already, so use that instead of the hardcoded value.

Fixes: 7304d19090 ("spi: spi-qpic: add driver for QCOM SPI NAND flash Interface")
Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
Link: https://patch.msgid.link/20250723-qpic-snand-fix-steps-v1-1-d800695dde4c@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-07-23 13:04:03 +01:00
Johan Hovold
696e123aa3
ASoC: mediatek: common: fix device and OF node leak
Make sure to drop the references to the accdet OF node and platform
device taken by of_parse_phandle() and of_find_device_by_node() after
looking up the sound component during probe.

Fixes: cf536e2622 ("ASoC: mediatek: common: Handle mediatek,accdet property")
Cc: stable@vger.kernel.org	# 6.15
Cc: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20250722092542.32754-1-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-07-23 13:03:57 +01:00
Lu Baolu
f0b9d31c6e iommu/vt-d: Fix UAF on sva unbind with pending IOPFs
Commit 17fce9d233 ("iommu/vt-d: Put iopf enablement in domain attach
path") disables IOPF on device by removing the device from its IOMMU's
IOPF queue when the last IOPF-capable domain is detached from the device.
Unfortunately, it did this in a wrong place where there are still pending
IOPFs. As a result, a use-after-free error is potentially triggered and
eventually a kernel panic with a kernel trace similar to the following:

 refcount_t: underflow; use-after-free.
 WARNING: CPU: 3 PID: 313 at lib/refcount.c:28 refcount_warn_saturate+0xd8/0xe0
 Workqueue: iopf_queue/dmar0-iopfq iommu_sva_handle_iopf
 Call Trace:
   <TASK>
   iopf_free_group+0xe/0x20
   process_one_work+0x197/0x3d0
   worker_thread+0x23a/0x350
   ? rescuer_thread+0x4a0/0x4a0
   kthread+0xf8/0x230
   ? finish_task_switch.isra.0+0x81/0x260
   ? kthreads_online_cpu+0x110/0x110
   ? kthreads_online_cpu+0x110/0x110
   ret_from_fork+0x13b/0x170
   ? kthreads_online_cpu+0x110/0x110
   ret_from_fork_asm+0x11/0x20
   </TASK>
  ---[ end trace 0000000000000000 ]---

The intel_pasid_tear_down_entry() function is responsible for blocking
hardware from generating new page faults and flushing all in-flight
ones. Therefore, moving iopf_for_domain_remove() after this function
should resolve this.

Fixes: 17fce9d233 ("iommu/vt-d: Put iopf enablement in domain attach path")
Reported-by: Ethan Milon <ethan.milon@eviden.com>
Closes: https://lore.kernel.org/r/e8b37f3e-8539-40d4-8993-43a1f3ffe5aa@eviden.com
Suggested-by: Ethan Milon <ethan.milon@eviden.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20250723072045.1853328-1-baolu.lu@linux.intel.com
Signed-off-by: Will Deacon <will@kernel.org>
2025-07-23 13:01:56 +01:00
Edward Adam Davis
8b3c655fa2
afs: Set vllist to NULL if addr parsing fails
syzbot reported a bug in in afs_put_vlserverlist.

  kAFS: bad VL server IP address
  BUG: unable to handle page fault for address: fffffffffffffffa
  ...
  Oops: Oops: 0002 [#1] SMP KASAN PTI
  ...
  RIP: 0010:refcount_dec_and_test include/linux/refcount.h:450 [inline]
  RIP: 0010:afs_put_vlserverlist+0x3a/0x220 fs/afs/vl_list.c:67
  ...
  Call Trace:
   <TASK>
   afs_alloc_cell fs/afs/cell.c:218 [inline]
   afs_lookup_cell+0x12a5/0x1680 fs/afs/cell.c:264
   afs_cell_init+0x17a/0x380 fs/afs/cell.c:386
   afs_proc_rootcell_write+0x21f/0x290 fs/afs/proc.c:247
   proc_simple_write+0x114/0x1b0 fs/proc/generic.c:825
   pde_write fs/proc/inode.c:330 [inline]
   proc_reg_write+0x23d/0x330 fs/proc/inode.c:342
   vfs_write+0x25c/0x1180 fs/read_write.c:682
   ksys_write+0x12a/0x240 fs/read_write.c:736
   do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
   do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94
   entry_SYSCALL_64_after_hwframe+0x77/0x7f

Because afs_parse_text_addrs() parses incorrectly, its return value -EINVAL
is assigned to vllist, which results in -EINVAL being used as the vllist
address when afs_put_vlserverlist() is executed.

Set the vllist value to NULL when a parsing error occurs to avoid this
issue.

Fixes: e2c2cb8ef0 ("afs: Simplify cell record handling")
Reported-by: syzbot+5c042fbab0b292c98fc6@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=5c042fbab0b292c98fc6
Tested-by: syzbot+5c042fbab0b292c98fc6@syzkaller.appspotmail.com
Signed-off-by: Edward Adam Davis <eadavis@qq.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/4119365.1753108011@warthog.procyon.org.uk
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-07-23 13:54:34 +02:00