Description
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: Fix use after free for wext Key information in wext.connect is not reset on (re)connect and can hold data from a previous connection. Reset key data to avoid that drivers or mac80211 incorrectly detect a WEP connection request and access the freed or already reused memory. Additionally optimize cfg80211_sme_connect() and avoid an useless schedule of conn_work.
Affected products
linux: linux kernel
References8
- git.kernel.org/stable/c/015b8cc5e7c4d7bb671f1984d7b7338c310b185b Patch
- git.kernel.org/stable/c/22dfb21bf1cd876616d45cda1bc6daa89eec6747 Patch
- git.kernel.org/stable/c/2cfe78619b0de6d2da773978bc2d22797212eaa7 Patch
- git.kernel.org/stable/c/66af4a2ab1d65d556d638cb9555a3b823c2557a9 Patch
- git.kernel.org/stable/c/6f1959c17d4cb5b74af6fc31dc787e1dc3e4f6e2 Patch
- git.kernel.org/stable/c/a2a92b3e9d8e03ee3f9ee407fc46a9b4bd02d8b6 Patch
- git.kernel.org/stable/c/f4b6a138efb8a32507b8946104e32cb926308da7 Patch
- git.kernel.org/stable/c/fd081afd21eb35b968b0330700c43ec94986e1c4 Patch
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 6 · as of 8 November 2026
- CWE
- CWE-416
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.