{"id":"CVE-2026-80938","summary":"wifi: mt76: mt7615: avoid waiting for mac work under the mt76 mutex","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7615: avoid waiting for mac work under the mt76 mutex\n\nmt7615_suspend() acquired the mt76 mutex and then called\ncancel_delayed_work_sync() on mac_work.  mt7615_mac_work() acquires the\nsame mutex via mt7615_mutex_acquire() at the top of the worker, so if\nmac_work is already running and blocked on the mutex, the suspend path\ndeadlocks waiting for the work it holds the mutex against.\n\nFlush scan_work and mac_work before taking the mutex, matching the\nsuspend paths in mt7921 and mt7925.  scan_work only takes the mt76\nspinlock, but moving it keeps the sequence consistent.  This also keeps\nmac_work from running over an already suspended HIF, which the previous\nsplit (async cancel under the lock, sync cancel after release) would\nhave allowed.","modified":"2026-09-13T03:46:45.652853049Z","published":"2026-09-11T19:42:11.588Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80938.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/3114d479f2a1d31b2e6214c395794c6e5715e579"},{"type":"WEB","url":"https://git.kernel.org/stable/c/44be85af3e1772ffb3332feafedad2a73b22854c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4506e229b2e468b8c64bcf52c50c41a3bf2e633e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bda8324270b1ac91bfba1df8928e0570e29759e8"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80938.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80938"},{"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":"c6bf20109a3fae92402cb76ad709ec5256bcd169"},{"fixed":"3114d479f2a1d31b2e6214c395794c6e5715e579"},{"fixed":"4506e229b2e468b8c64bcf52c50c41a3bf2e633e"},{"fixed":"44be85af3e1772ffb3332feafedad2a73b22854c"},{"fixed":"bda8324270b1ac91bfba1df8928e0570e29759e8"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80938.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.8.0"},{"fixed":"6.12.109"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.50"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.4"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80938.json"}}],"schema_version":"1.9.0"}