CVE-2025-38644

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: reject TDLS operations when station is not associated syzbot triggered a WARN in ieee80211_tdls_oper() by sending NL80211_TDLS_ENABLE_LINK immediately after NL80211_CMD_CONNECT, before association completed and without prior TDLS setup. This left internal state like sdata->u.mgd.tdls_peer uninitialized, leading to a WARN_ON() in code paths that assumed it was valid. Reject the operation early if not in station mode or not associated.

Impact & exploitability

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products we track (2)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: https://git.kernel.org/stable/c/0c84204cf0bbe89e454a5caccc6a908bc7db1542 ↗

Additional information

• NVD record
• https://git.kernel.org/stable/c/0c84204cf0bbe89e454a5caccc6a908bc7db1542Patch
• https://git.kernel.org/stable/c/16ecdab5446f15a61ec88eb0d23d25d009821db0Patch
• https://git.kernel.org/stable/c/31af06b574394530f68a4310c45ecbe2f68853c4Patch
• https://git.kernel.org/stable/c/378ae9ccaea3f445838a087962a067b5cb2e8577Patch
• https://git.kernel.org/stable/c/4df663d4c1ca386dcab2f743dfc9f0cc07aef73cPatch
• https://git.kernel.org/stable/c/af72badd5ee423eb16f6ad7fe0a62f1b4252d848Patch
• https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlAdvisory