{"id":"CVE-2026-90353","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-90353","summary":"wifi: mt76: mt7915: fix ext PHY use-after-free on register error path","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7915: fix ext PHY use-after-free on register error path\n\nAfter mt7915_register_ext_phy() succeeded, a failure of the main PHY\nmt7915_init_debugfs() or mt7915_coredump_register() unwound through\nfree_phy2, which called ieee80211_free_hw() on the ext PHY hw while it\nwas still registered with mac80211, since mt76_unregister_device() only\nunregisters the main hw. Unregister the ext PHY (thermal + phy + hw)\nfirst and skip the redundant free.","published":"2026-09-17T16:09:00.217Z","modified":"2026-09-19T03:47:26.002403071Z","cvss":{"score":7,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"6.1.188"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/15b960014f24dce5388d4a2e7274e6490cb3c421"},{"type":"WEB","url":"https://git.kernel.org/stable/c/34058ad122f7524e33df8e38caba4b1d803b025a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/648f5f03ff50d4bd719106ace0cdf1d8be02cbdd"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a7fd3bae8e11a7c00df6a5021d9ef248ae9f9bf5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/aa55bec92ba7747dd08feff409f8074c5e052e71"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ad706fcf6255494613b94418e7243d98065dbeaf"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90353.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90353"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-19T03:47:26.002403071Z"}}