Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: cancel wiphy_work before freeing wiphy A wiphy_work can be queued from the moment the wiphy is allocated and initialized (i.e. wiphy_new_nm). When a wiphy_work is queued, the rdev::wiphy_work is getting queued. If wiphy_free is called before the rdev::wiphy_work had a chance to run, the wiphy memory will be freed, and then when it eventally gets to run it'll use invalid memory. Fix this by canceling the work before freeing the wiphy.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.1.57, < 6.1.132 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/0272d4af7f92997541d8bbf4c51918b93ded6ee2Patch
- https://git.kernel.org/stable/c/72d520476a2fab6f3489e8388ab524985d6c4b90Patch
- https://git.kernel.org/stable/c/75d262ad3c36d52852d764588fcd887f0fcd9138Patch
- https://git.kernel.org/stable/c/8930a3e1568cf534f86c8ed2def817c6d0528fc1Patch
- https://git.kernel.org/stable/c/a5158d67bff06cb6fea31be39aeb319fd908ed8ePatch
- https://git.kernel.org/stable/c/dea22de162058216a90f2706f0d0b36f0ff309fdPatch
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.htmlPatch
FAQ
What is CVE-2025-21979?
CVE-2025-21979 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: cancel wiphy_work before freeing wiphy A wiphy_work can be queued from the moment the wiphy is allocated and initi...
How severe is CVE-2025-21979?
CVE-2025-21979 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-21979?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.