Bug 2390367 (CVE-2025-38644)

Summary: CVE-2025-38644 kernel: wifi: mac80211: reject TDLS operations when station is not associated
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedKeywords: Security
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OS: Linux   
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Description OSIDB Bzimport 2025-08-22 17:02:59 UTC 
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.
Comment 1 Alexander B 2025-08-25 09:53:24 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025082235-CVE-2025-38644-39b4@gregkh/T