{"id":"CVE-2026-90382","summary":"wifi: mt76: mt76x02: do not WARN on invalid rx descriptor length","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt76x02: do not WARN on invalid rx descriptor length\n\nThe MPDU length in the rx descriptor comes from the hardware. In\nmonitor mode with the fcsfail filter enabled, the hardware passes up\ncorrupted frames, and a corrupted frame can report a length larger\nthan the received buffer. The bounds check correctly discards such\nframes, but its WARN_ON_ONCE wrapper means any over-the-air garbage\nframe taints the kernel, and panics it on the first such frame when\npanic_on_warn is set.\n\nDrop the WARN and discard the frame silently, matching what\ncommit c2d4c8723dbf (\"mt76x2: remove some harmless WARN_ONs in tx\nstatus and rx path\") did for the neighboring rx and tx status paths.\n\nObserved immediately on rx with an MT7612U in fcsfail monitor mode\non a busy channel.","modified":"2026-09-19T03:47:26.085973451Z","published":"2026-09-17T16:09:19.247Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90382.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/17d6b89e09eac2d90272fceeba3644e92212e02f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2d31e332c13b1db7745a7bd9cf74bc105524bcac"},{"type":"WEB","url":"https://git.kernel.org/stable/c/61b1f6d92249bc34580ff19de7c69c805f82adca"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6def491fe9c4e83aa8cba62d74e9d4ab751ee967"},{"type":"WEB","url":"https://git.kernel.org/stable/c/81497634d9f872fd3e8b03aada55574afff6f174"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b6e7958602bd1acdb8ae92703b6689a28bcc9bc0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c65bbfc730df9ebf0fea8e286b0ad2dfab03dbfe"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d55e7aede542c4c76ead82d37d0c112f21eb2ac2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90382.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90382"},{"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":"7bc04215a66b60e198aecaee8418f6d79fa19faa"},{"fixed":"61b1f6d92249bc34580ff19de7c69c805f82adca"},{"fixed":"c65bbfc730df9ebf0fea8e286b0ad2dfab03dbfe"},{"fixed":"d55e7aede542c4c76ead82d37d0c112f21eb2ac2"},{"fixed":"b6e7958602bd1acdb8ae92703b6689a28bcc9bc0"},{"fixed":"2d31e332c13b1db7745a7bd9cf74bc105524bcac"},{"fixed":"17d6b89e09eac2d90272fceeba3644e92212e02f"},{"fixed":"6def491fe9c4e83aa8cba62d74e9d4ab751ee967"},{"fixed":"81497634d9f872fd3e8b03aada55574afff6f174"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90382.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.16.0"},{"fixed":"5.10.270"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.221"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.188"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.157"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"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-2026-90382.json"}}],"schema_version":"1.9.0"}