Description
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: fix use-after-free in cmp_bss() Following bss_free() quirk introduced in commit 776b3580178f ("cfg80211: track hidden SSID networks properly"), adjust cfg80211_update_known_bss() to free the last beacon frame elements only if they're not shared via the corresponding 'hidden_beacon_bss' pointer.
Affected products
linux: linux kernel; debian: debian linux
References10
- git.kernel.org/stable/c/26e84445f02ce6b2fe5f3e0e28ff7add77f35e08 Patch
- git.kernel.org/stable/c/5b7ae04969f822283a95c866967e42b4d75e0eef Patch
- git.kernel.org/stable/c/6854476d9e1aeaaf05ebc98d610061c2075db07d Patch
- git.kernel.org/stable/c/912c4b66bef713a20775cfbf3b5e9bd71525c716 Patch
- git.kernel.org/stable/c/a8bb681e879ca3c9f722aa08d3d7ae41c42a8807 Patch
- git.kernel.org/stable/c/a97a9791e455bb0cd5e7a38b5abcb05523d4e21c Patch
- git.kernel.org/stable/c/b7d08929178c16398278613df07ad65cf63cce9d Patch
- git.kernel.org/stable/c/ff040562c10a540b8d851f7f4145fa112977f853 Patch
- lists.debian.org/debian-lts-announce/2025/10/msg00007.html Mailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2025/10/msg00008.html Mailing ListThird Party Advisory
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: 14 · as of 8 November 2026
- CWE
- CWE-416
Could this be exploited in your environment?
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