{"id":"CVE-2026-90382","state":"PUBLISHED","title":"wifi: mt76: mt76x02: do not WARN on invalid rx descriptor length","description":"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.","publishedAt":"2026-09-17T16:09:19.247Z","updatedAt":"2026-10-19T09:02:43.423Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","status":"affected","lessThan":"61b1f6d92249bc34580ff19de7c69c805f82adca","versionType":"git"},{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","status":"affected","lessThan":"c65bbfc730df9ebf0fea8e286b0ad2dfab03dbfe","versionType":"git"},{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","status":"affected","lessThan":"d55e7aede542c4c76ead82d37d0c112f21eb2ac2","versionType":"git"},{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","status":"affected","lessThan":"b6e7958602bd1acdb8ae92703b6689a28bcc9bc0","versionType":"git"},{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","status":"affected","lessThan":"2d31e332c13b1db7745a7bd9cf74bc105524bcac","versionType":"git"},{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","status":"affected","lessThan":"17d6b89e09eac2d90272fceeba3644e92212e02f","versionType":"git"},{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","status":"affected","lessThan":"6def491fe9c4e83aa8cba62d74e9d4ab751ee967","versionType":"git"},{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","status":"affected","lessThan":"81497634d9f872fd3e8b03aada55574afff6f174","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt76x02_mac.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.16","versionType":"semver"},{"version":"5.10.270","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt76x02_mac.c"]}],"references":["https://git.kernel.org/stable/c/61b1f6d92249bc34580ff19de7c69c805f82adca","https://git.kernel.org/stable/c/c65bbfc730df9ebf0fea8e286b0ad2dfab03dbfe","https://git.kernel.org/stable/c/d55e7aede542c4c76ead82d37d0c112f21eb2ac2","https://git.kernel.org/stable/c/b6e7958602bd1acdb8ae92703b6689a28bcc9bc0","https://git.kernel.org/stable/c/2d31e332c13b1db7745a7bd9cf74bc105524bcac","https://git.kernel.org/stable/c/17d6b89e09eac2d90272fceeba3644e92212e02f","https://git.kernel.org/stable/c/6def491fe9c4e83aa8cba62d74e9d4ab751ee967","https://git.kernel.org/stable/c/81497634d9f872fd3e8b03aada55574afff6f174"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/90xxx/CVE-2026-90382.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90382","state":"PUBLISHED","datePublished":"2026-09-17T16:09:19.247Z","dateUpdated":"2026-10-19T09:02:43.423Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-11T19:38:34.809Z"},"containers":{"cna":{"title":"wifi: mt76: mt76x02: do not WARN on invalid rx descriptor length","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","status":"affected","lessThan":"61b1f6d92249bc34580ff19de7c69c805f82adca","versionType":"git"},{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","status":"affected","lessThan":"c65bbfc730df9ebf0fea8e286b0ad2dfab03dbfe","versionType":"git"},{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","status":"affected","lessThan":"d55e7aede542c4c76ead82d37d0c112f21eb2ac2","versionType":"git"},{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","status":"affected","lessThan":"b6e7958602bd1acdb8ae92703b6689a28bcc9bc0","versionType":"git"},{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","status":"affected","lessThan":"2d31e332c13b1db7745a7bd9cf74bc105524bcac","versionType":"git"},{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","status":"affected","lessThan":"17d6b89e09eac2d90272fceeba3644e92212e02f","versionType":"git"},{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","status":"affected","lessThan":"6def491fe9c4e83aa8cba62d74e9d4ab751ee967","versionType":"git"},{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","status":"affected","lessThan":"81497634d9f872fd3e8b03aada55574afff6f174","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt76x02_mac.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.16","versionType":"semver"},{"version":"5.10.270","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt76x02_mac.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/61b1f6d92249bc34580ff19de7c69c805f82adca"},{"url":"https://git.kernel.org/stable/c/c65bbfc730df9ebf0fea8e286b0ad2dfab03dbfe"},{"url":"https://git.kernel.org/stable/c/d55e7aede542c4c76ead82d37d0c112f21eb2ac2"},{"url":"https://git.kernel.org/stable/c/b6e7958602bd1acdb8ae92703b6689a28bcc9bc0"},{"url":"https://git.kernel.org/stable/c/2d31e332c13b1db7745a7bd9cf74bc105524bcac"},{"url":"https://git.kernel.org/stable/c/17d6b89e09eac2d90272fceeba3644e92212e02f"},{"url":"https://git.kernel.org/stable/c/6def491fe9c4e83aa8cba62d74e9d4ab751ee967"},{"url":"https://git.kernel.org/stable/c/81497634d9f872fd3e8b03aada55574afff6f174"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:02:43.423Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"5.10.270"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"5.15.221"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"6.1.188"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}