CVE-2026-90349
wifi: mt76: mt7996: fix out-of-bounds link array access in mt7996_tx()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 17, 2026 |
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Affected Versions
Linux / Linux
1609b014aa29f9a2bf3aaa93f71de4a06725845e < 637bb99cc766a858d744905e46638459ca128b6c 1609b014aa29f9a2bf3aaa93f71de4a06725845e < aff81505a84d27f83b4db8e039e813930cb23c2c 1609b014aa29f9a2bf3aaa93f71de4a06725845e < 4330a0ef9f75a54fde3548432a9a698f06bab635
Linux / Linux
6.18