{"id":"CVE-2026-90349","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7996: fix out-of-bounds link array access in mt7996_tx()\n\nWhen mac80211 leaves the link unspecified, mt7996_tx() substitutes the\nprimary link id of the st…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7996: fix out-of-bounds link array access in mt7996_tx()\n\nWhen mac80211 leaves the link unspecified, mt7996_tx() substitutes the\nprimary link id of the st…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 1609b014aa29f9a2bf3aaa93f71de4a06725845e < 637bb99cc766a858d744905e46638459ca128b6c","Linux >= 1609b014aa29f9a2bf3aaa93f71de4a06725845e < aff81505a84d27f83b4db8e039e813930cb23c2c","Linux >= 1609b014aa29f9a2bf3aaa93f71de4a06725845e < 4330a0ef9f75a54fde3548432a9a698f06bab635","Linux 6.18"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:33.700","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90349","references":[{"url":"https://git.kernel.org/stable/c/4330a0ef9f75a54fde3548432a9a698f06bab635","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/637bb99cc766a858d744905e46638459ca128b6c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/aff81505a84d27f83b4db8e039e813930cb23c2c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-17T16:21:47.815Z","epss":0.00198,"epssPercentile":0.09861,"slug":"CVE-2026-90349","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7996: fix out-of-bounds link array access in mt7996_tx()\n\nWhen mac80211 leaves the link unspecified, mt7996_tx() substitutes the\nprimary link id of the station or vif. That value is\nIEEE80211_LINK_UNSPECIFIED (0xf) until the first link has been added,\nand it is then used unchecked to index vif->link_conf[],\nmvif->mt76.link[] and sta->link[], all of which hold\nIEEE80211_MLD_MAX_NUM_LINKS (15) entries.\n\nClamp the primary link id to the default link before using it, and use\nthe clamped value for the link_sta fallback as well.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}