Bug 2396925 (CVE-2025-39862)

Summary: CVE-2025-39862 kernel: wifi: mt76: mt7915: fix list corruption after hardware restart
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-09-19 16:01:57 UTC 
In the Linux kernel, the following vulnerability has been resolved:

wifi: mt76: mt7915: fix list corruption after hardware restart

Since stations are recreated from scratch, all lists that wcids are added
to must be cleared before calling ieee80211_restart_hw.
Set wcid->sta = 0 for each wcid entry in order to ensure that they are
not added again before they are ready.
Comment 1 Mauro Matteo Cascella 2025-09-22 09:52:47 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025091906-CVE-2025-39862-5acb@gregkh/T