CVE-2025-39746 Details
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
A vulnerability in the Linux kernel's ath10k wireless driver can lead to system crashes. This issue arises when ath10k loses connection with the PCIe bus, causing a watchdog timeout during system resume. The driver fails to stop certain virtual devices, leading to a panic state. To prevent crashes, a recovery mechanism has been implemented, which skips ath10k operations if the hardware is deemed unreliable.
Users can update to the latest version of the Linux kernel, where this vulnerability has been addressed. Instructions for updating the kernel can be found in the official Linux documentation.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/201c9b4485edc618863a60f97a2d88bddd139467 | kernel.org | Patch |
| https://git.kernel.org/stable/c/84ca5632b8d05d1c2e25604d1d63434b2fb61c85 | kernel.org | Patch |
| https://git.kernel.org/stable/c/c256a94d1b1b15109740306f7f2a7c2173e12072 | kernel.org | Patch |
| https://git.kernel.org/stable/c/e36991bddf8be63e79659f654cdb1722db4e8132 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 3.11, < 6.12.43 >= 6.13, < 6.15.11 >= 6.16, < 6.16.2 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Nov 25, 2025 | Initial Analysis | [email protected] |
| Sep 11, 2025 | New CVE Received | kernel.org |