{"id":"CVE-2026-90375","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: fix non-AQL packet accounting for MLO stations\n\n__mt76_tx_queue_skb() overrides the wcid passed by the driver with\nsta->drv_priv, so the wcid might incorrec…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: fix non-AQL packet accounting for MLO stations\n\n__mt76_tx_queue_skb() overrides the wcid passed by the driver with\nsta->drv_priv, so the wcid might incorrec…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= e1378e5228aaa1bf6bb253a379c7de1722a94e00 < f85f6933cc170155f1c7c2dffdd014965787c71b","Linux >= e1378e5228aaa1bf6bb253a379c7de1722a94e00 < fc7fae55255ccbde009232e84b102d2782a69ecf","Linux >= e1378e5228aaa1bf6bb253a379c7de1722a94e00 < 186c957ac3325aefb982567ffdd3654b283688a7","Linux >= e1378e5228aaa1bf6bb253a379c7de1722a94e00 < 8ae659743ba936b22ecb4620815887728e2820d6","Linux 5.10"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:36.720","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90375","references":[{"url":"https://git.kernel.org/stable/c/186c957ac3325aefb982567ffdd3654b283688a7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8ae659743ba936b22ecb4620815887728e2820d6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f85f6933cc170155f1c7c2dffdd014965787c71b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fc7fae55255ccbde009232e84b102d2782a69ecf","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-17T16:21:47.808Z","epss":0.00168,"epssPercentile":0.06499,"slug":"CVE-2026-90375","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: fix non-AQL packet accounting for MLO stations\n\n__mt76_tx_queue_skb() overrides the wcid passed by the driver with\nsta->drv_priv, so the wcid might incorrectly be changed after TX,\ncausing wcid->non_aql_packets to be counted on the wrong wcid. For\nexample, on the AP side, if a station's setup link is the 5G link and\nthe station uses 2G to transmit a frame, the value of non_aql_packets\nis increased on the 5G wcid but decreased on the 2G wcid. Once the\ninflated counter exceeds MT_MAX_NON_AQL_PKT, the TX scheduler\npermanently refuses to service the station.\n\nDrop the reassignment and account on the wcid used for transmission.\nThis also records the actual wcid in the queue entry.\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":[]}