{"id":"CVE-2026-90375","summary":"wifi: mt76: fix non-AQL packet accounting for MLO stations","details":"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-\u003edrv_priv, so the wcid might incorrectly be changed after TX,\ncausing wcid-\u003enon_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.","modified":"2026-09-19T03:47:26.084118167Z","published":"2026-09-17T16:09:14.730Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90375.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/186c957ac3325aefb982567ffdd3654b283688a7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8ae659743ba936b22ecb4620815887728e2820d6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f85f6933cc170155f1c7c2dffdd014965787c71b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fc7fae55255ccbde009232e84b102d2782a69ecf"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90375.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90375"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"e1378e5228aaa1bf6bb253a379c7de1722a94e00"},{"fixed":"f85f6933cc170155f1c7c2dffdd014965787c71b"},{"fixed":"fc7fae55255ccbde009232e84b102d2782a69ecf"},{"fixed":"186c957ac3325aefb982567ffdd3654b283688a7"},{"fixed":"8ae659743ba936b22ecb4620815887728e2820d6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90375.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.10.0"},{"fixed":"6.12.110"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.52"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90375.json"}}],"schema_version":"1.9.0"}