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CVE-2025-39746

wifi: ath10k: shutdown driver when hardware is unreliable

MEDIUM
5.5
CVSS Score
Published: September 11, 2025 at 04:52 PM UTC
Updated: October 19, 2026 at 09:10 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath10k: shutdown driver when hardware is unreliable In rare cases, ath10k may lose connection with the PCIe bus due to some unknown reasons, which could further lead to system crashes during resuming due to watchdog timeout: ath10k_pci 0000:01:00.0: wmi command 20486 timeout, restarting hardware ath10k_pci 0000:01:00.0: already restarting ath10k_pci 0000:01:00.0: failed to stop WMI vdev 0: -11 ath10k_pci 0000:01:00.0: failed to stop vdev 0: -11 ieee80211 phy0: PM: **** DPM device timeout **** Call Trace: panic+0x125/0x315 dpm_watchdog_set+0x54/0x54 dpm_watchdog_handler+0x57/0x57 call_timer_fn+0x31/0x13c At this point, all WMI commands will timeout and attempt to restart device. So set a threshold for consecutive restart failures. If the threshold is exceeded, consider the hardware is unreliable and all ath10k operations should be skipped to avoid system crash. fail_cont_count and pending_recovery are atomic variables, and do not involve complex conditional logic. Therefore, even if recovery check and reconfig complete are executed concurrently, the recovery mechanism will not be broken. Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00288-QCARMSWPZ-1

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
3.11 ≤ v < 6.12.436.13 ≤ v < 6.15.116.16 ≤ v < 6.16.23.115e3dd157d7e70f0e3cea3f2573ed69fb156a19d5
Vendor states this is fixed in 201c9b4485edc618863a60f97a2d88bddd139467 (fixed)
Vendor states this is fixed in 84ca5632b8d05d1c2e25604d1d63434b2fb61c85 (fixed)
Vendor states this is fixed in c256a94d1b1b15109740306f7f2a7c2173e12072 (fixed)
Vendor states this is fixed in e36991bddf8be63e79659f654cdb1722db4e8132 (fixed)
Vendor states this is fixed in 3.11 (unaffected)
Vendor states this is fixed in 6.12.43 (unaffected)
Vendor states this is fixed in 6.15.11 (unaffected)
Vendor states this is fixed in 6.16.2 (unaffected)
Vendor states this is fixed in 6.17 (unaffected)

References (4)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/201c9b4485edc618863a60f97a2d88bddd139467
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/84ca5632b8d05d1c2e25604d1d63434b2fb61c85
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c256a94d1b1b15109740306f7f2a7c2173e12072
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/e36991bddf8be63e79659f654cdb1722db4e8132

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
NVD-CWE-noinfo

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