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CVE-2026-90349

wifi: mt76: mt7996: fix out-of-bounds link array access in mt7996_tx()

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

wifi: mt76: mt7996: fix out-of-bounds link array access in mt7996_tx()

When mac80211 leaves the link unspecified, mt7996_tx() substitutes the
primary link id of the station or vif. That value is
IEEE80211_LINK_UNSPECIFIED (0xf) until the first link has been added,
and it is then used unchecked to index vif->link_conf[],
mvif->mt76.link[] and sta->link[], all of which hold
IEEE80211_MLD_MAX_NUM_LINKS (15) entries.

Clamp the primary link id to the default link before using it, and use
the clamped value for the link_sta fallback as well.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 1609b014aa29f9a2bf3aaa93f71de4a06725845e
Version < 637bb99cc766a858d744905e46638459ca128b6c
Status affected
Version 1609b014aa29f9a2bf3aaa93f71de4a06725845e
Version < aff81505a84d27f83b4db8e039e813930cb23c2c
Status affected
Version 1609b014aa29f9a2bf3aaa93f71de4a06725845e
Version < 4330a0ef9f75a54fde3548432a9a698f06bab635
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.18
Status affected
Version 0
Version < 6.18
Status unaffected
Version <= 6.18.*
Version 6.18.52
Status unaffected
Version <= 7.2.*
Version 7.2.6
Status unaffected
Version <= *
Version 7.3-rc1
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.2% 0.099
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/637bb99cc766a858d744905e46638459ca128b6c
https://git.kernel.org/stable/c/aff81505a84d27f83b4db8e039e813930cb23c2c
https://git.kernel.org/stable/c/4330a0ef9f75a54fde3548432a9a698f06bab635