{"id":"CVE-2026-90382","title":"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","summary":"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 …","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 7bc04215a66b60e198aecaee8418f6d79fa19faa < 61b1f6d92249bc34580ff19de7c69c805f82adca","Linux >= 7bc04215a66b60e198aecaee8418f6d79fa19faa < c65bbfc730df9ebf0fea8e286b0ad2dfab03dbfe","Linux >= 7bc04215a66b60e198aecaee8418f6d79fa19faa < d55e7aede542c4c76ead82d37d0c112f21eb2ac2","Linux >= 7bc04215a66b60e198aecaee8418f6d79fa19faa < b6e7958602bd1acdb8ae92703b6689a28bcc9bc0","Linux >= 7bc04215a66b60e198aecaee8418f6d79fa19faa < 2d31e332c13b1db7745a7bd9cf74bc105524bcac","Linux >= 7bc04215a66b60e198aecaee8418f6d79fa19faa < 17d6b89e09eac2d90272fceeba3644e92212e02f","Linux >= 7bc04215a66b60e198aecaee8418f6d79fa19faa < 6def491fe9c4e83aa8cba62d74e9d4ab751ee967","Linux >= 7bc04215a66b60e198aecaee8418f6d79fa19faa < 81497634d9f872fd3e8b03aada55574afff6f174","Linux 4.16"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:37.503","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90382","references":[{"url":"https://git.kernel.org/stable/c/17d6b89e09eac2d90272fceeba3644e92212e02f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/2d31e332c13b1db7745a7bd9cf74bc105524bcac","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/61b1f6d92249bc34580ff19de7c69c805f82adca","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6def491fe9c4e83aa8cba62d74e9d4ab751ee967","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/81497634d9f872fd3e8b03aada55574afff6f174","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b6e7958602bd1acdb8ae92703b6689a28bcc9bc0","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c65bbfc730df9ebf0fea8e286b0ad2dfab03dbfe","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d55e7aede542c4c76ead82d37d0c112f21eb2ac2","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-17T16:21:47.805Z","epss":0.0021,"epssPercentile":0.11539,"slug":"CVE-2026-90382","body":"## Overview\n\nIn 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.\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":[]}