CVE-2025-39746wifi: ath10k: shutdown driver when hardware is unreliable
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Analyzed
- Record last updated
- May 11, 2026
- First seen by InfoSec Signals
- Oct 19, 2026
Affected products
Linux Linux linux:linux (from the name) | from 5e3dd157d7e70f0e3cea3f2573ed69fb156a19d5 before 201c9b4485edc618863a60f97a2d88bddd139467; from 5e3dd157d7e70f0e3cea3f2573ed69fb156a19d5 before e36991bddf8be63e79659f654cdb1722db4e8132; from 5e3dd157d7e70f0e3cea3f2573ed69fb156a19d5 before 84ca5632b8d05d1c2e25604d1d63434b2fb61c85; from 5e3dd157d7e70f0e3cea3f2573ed69fb156a19d5 before c256a94d1b1b15109740306f7f2a7c2173e12072 | CNA record |
linux linux_kernel linux:linux_kernel | from 3.11 before 6.12.43; from 6.13 before 6.15.11; from 6.16 before 6.16.2 | NVD |
References
- https://git.kernel.org/stable/c/201c9b4485edc618863a60f97a2d88bddd139467patch
- https://git.kernel.org/stable/c/e36991bddf8be63e79659f654cdb1722db4e8132patch
- https://git.kernel.org/stable/c/84ca5632b8d05d1c2e25604d1d63434b2fb61c85patch
- https://git.kernel.org/stable/c/c256a94d1b1b15109740306f7f2a7c2173e12072patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.