CVE-2025-39957

HIGH7.8

wifi: mac80211: increase scan_ies_len for S1G

Published Oct 9, 2025

Modified 3 months ago

Details

In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211: increase scan_ies_len for S1G

Currently the S1G capability element is not taken into account for the scan_ies_len, which leads to a buffer length validation failure in ieee80211_prep_hw_scan() and subsequent WARN in __ieee80211_start_scan(). This prevents hw scanning from functioning. To fix ensure we accommodate for the S1G capability length.

References

WEB

https://git.kernel.org/stable/c/0dbad5f5549e54ac269cc04ce89f212892a98cab

WEB

https://git.kernel.org/stable/c/32adb020b0c32939da1322dcc87fc0ae2bc935d1

WEB

https://git.kernel.org/stable/c/7e2f3213e85eba00acb4cfe6d71647892d63c3a1

WEB

https://git.kernel.org/stable/c/93e063f15e17acb8cd6ac90c8f0802c2624e1a74

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2025-39957

CVSS Analysis