CVE-2025-39864
wifi: cfg80211: fix use-after-free in cmp_bss()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 19, 2025 |
| Last Updated | May 12, 2026 |
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Affected Versions
Linux / Linux
3ab8227d3e7d1d2bf1829675d3197e3cb600e9f6 < a8bb681e879ca3c9f722aa08d3d7ae41c42a8807 3ab8227d3e7d1d2bf1829675d3197e3cb600e9f6 < a97a9791e455bb0cd5e7a38b5abcb05523d4e21c 3ab8227d3e7d1d2bf1829675d3197e3cb600e9f6 < ff040562c10a540b8d851f7f4145fa112977f853 3ab8227d3e7d1d2bf1829675d3197e3cb600e9f6 < 6854476d9e1aeaaf05ebc98d610061c2075db07d 3ab8227d3e7d1d2bf1829675d3197e3cb600e9f6 < b7d08929178c16398278613df07ad65cf63cce9d 3ab8227d3e7d1d2bf1829675d3197e3cb600e9f6 < 5b7ae04969f822283a95c866967e42b4d75e0eef 3ab8227d3e7d1d2bf1829675d3197e3cb600e9f6 < 912c4b66bef713a20775cfbf3b5e9bd71525c716 3ab8227d3e7d1d2bf1829675d3197e3cb600e9f6 < 26e84445f02ce6b2fe5f3e0e28ff7add77f35e08
Linux / Linux
5.4
References
git.kernel.org: https://git.kernel.org/stable/c/a8bb681e879ca3c9f722aa08d3d7ae41c42a8807 git.kernel.org: https://git.kernel.org/stable/c/a97a9791e455bb0cd5e7a38b5abcb05523d4e21c git.kernel.org: https://git.kernel.org/stable/c/ff040562c10a540b8d851f7f4145fa112977f853 git.kernel.org: https://git.kernel.org/stable/c/6854476d9e1aeaaf05ebc98d610061c2075db07d git.kernel.org: https://git.kernel.org/stable/c/b7d08929178c16398278613df07ad65cf63cce9d git.kernel.org: https://git.kernel.org/stable/c/5b7ae04969f822283a95c866967e42b4d75e0eef git.kernel.org: https://git.kernel.org/stable/c/912c4b66bef713a20775cfbf3b5e9bd71525c716 git.kernel.org: https://git.kernel.org/stable/c/26e84445f02ce6b2fe5f3e0e28ff7add77f35e08 lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html cert-portal.siemens.com: https://cert-portal.siemens.com/productcert/html/ssa-089022.html cert-portal.siemens.com: https://cert-portal.siemens.com/productcert/html/ssa-032379.html