CVE-2026-98891
wifi: mac80211: validate deauth frame length before reason access
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: validate deauth frame length before reason access ieee80211_rx_mgmt_deauth() reads the deauth reason code before checking that the fixed field is actually present in the received frame. Validate the deauth frame length first and only then read the reason code.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 23, 2026 |
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Affected Versions
Linux / Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 51092dc769f021e9634474e1bd5a561da477fbdb 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a6ed4c00ccdc15011a73daa2b38af9fc5a2c543e 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 80d1a110e9096b5bf41497f6b151154084862385 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a78689e2beed200d4590318612c74ae25c9408cf 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 7a5ef1fd654d0e90d59aa32c881789c8bcc4125a 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 9df64ad43e1f2c036667bba2bf385e9d7b3af564 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 4a360c6e18dfa9d70006c7247a6a8cc8dfe0d60f 0 < 5.10.271 0 < 5.15.222 0 < 6.1.189 0 < 6.6.158 0 < 6.12.111 0 < 6.18.53
Linux / Linux
All versions affected References
git.kernel.org: https://git.kernel.org/stable/c/51092dc769f021e9634474e1bd5a561da477fbdb git.kernel.org: https://git.kernel.org/stable/c/a6ed4c00ccdc15011a73daa2b38af9fc5a2c543e git.kernel.org: https://git.kernel.org/stable/c/80d1a110e9096b5bf41497f6b151154084862385 git.kernel.org: https://git.kernel.org/stable/c/a78689e2beed200d4590318612c74ae25c9408cf git.kernel.org: https://git.kernel.org/stable/c/7a5ef1fd654d0e90d59aa32c881789c8bcc4125a git.kernel.org: https://git.kernel.org/stable/c/9df64ad43e1f2c036667bba2bf385e9d7b3af564 git.kernel.org: https://git.kernel.org/stable/c/4a360c6e18dfa9d70006c7247a6a8cc8dfe0d60f