CVE-2025-21979
wifi: cfg80211: cancel wiphy_work before freeing wiphy
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Apr 1, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
ddb1bfbf4ab5c753954d0cd728253b642934a9f2 < 8930a3e1568cf534f86c8ed2def817c6d0528fc1 3fcc6d7d5f40dad56dee7bde787b7e23edd4b93c < 0272d4af7f92997541d8bbf4c51918b93ded6ee2 a3ee4dc84c4e9d14cb34dad095fd678127aca5b6 < 75d262ad3c36d52852d764588fcd887f0fcd9138 a3ee4dc84c4e9d14cb34dad095fd678127aca5b6 < a5158d67bff06cb6fea31be39aeb319fd908ed8e a3ee4dc84c4e9d14cb34dad095fd678127aca5b6 < dea22de162058216a90f2706f0d0b36f0ff309fd a3ee4dc84c4e9d14cb34dad095fd678127aca5b6 < 72d520476a2fab6f3489e8388ab524985d6c4b90
Linux / Linux
6.5
References
git.kernel.org: https://git.kernel.org/stable/c/8930a3e1568cf534f86c8ed2def817c6d0528fc1 git.kernel.org: https://git.kernel.org/stable/c/0272d4af7f92997541d8bbf4c51918b93ded6ee2 git.kernel.org: https://git.kernel.org/stable/c/75d262ad3c36d52852d764588fcd887f0fcd9138 git.kernel.org: https://git.kernel.org/stable/c/a5158d67bff06cb6fea31be39aeb319fd908ed8e git.kernel.org: https://git.kernel.org/stable/c/dea22de162058216a90f2706f0d0b36f0ff309fd git.kernel.org: https://git.kernel.org/stable/c/72d520476a2fab6f3489e8388ab524985d6c4b90 lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html