{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90373","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-11T19:38:34.808Z","datePublished":"2026-09-17T16:09:13.368Z","dateUpdated":"2026-09-17T16:09:13.368Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-17T16:09:13.368Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7915: clear wcid mask under mutex after RCU pointer clear\n\nmt7915_remove_interface() cleared the wcid mask bit with no lock held and\nbefore clearing the RCU wcid pointer. The mask is a non-atomic RMW shared\nwith the allocators, which all run under dev->mt76.mutex; on DBDC the two\nwiphys share one mt76_dev, so this raced add_interface/sta_add on the\nother band and could leak or double-hand-out a wcid. Clearing the bit\nbefore the RCU pointer also let a concurrent allocation reuse the index\nand publish its wcid, which the subsequent NULL assignment then wiped.\nMove the clear into the existing mutex section, after the RCU pointer is\ncleared."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt7915/main.c"],"versions":[{"version":"f3049b88b2b32326df97461813ae73e8bbc296fc","lessThan":"5dce25f1d609ba991a9c22c27be586c92f03ed77","status":"affected","versionType":"git"},{"version":"f3049b88b2b32326df97461813ae73e8bbc296fc","lessThan":"b4a41a47a67c788e6b0625fa517ec8872e99bb6c","status":"affected","versionType":"git"},{"version":"f3049b88b2b32326df97461813ae73e8bbc296fc","lessThan":"a97b2b942d2f8f12fbd6a7caafc735d1ad115e6b","status":"affected","versionType":"git"},{"version":"f3049b88b2b32326df97461813ae73e8bbc296fc","lessThan":"6486e11a6e2f679597af2d5bb48c3b07a2b2a7ba","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt7915/main.c"],"versions":[{"version":"6.12","status":"affected"},{"version":"0","lessThan":"6.12","status":"unaffected","versionType":"semver"},{"version":"6.12.110","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.52","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.6","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"7.3-rc1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/5dce25f1d609ba991a9c22c27be586c92f03ed77"},{"url":"https://git.kernel.org/stable/c/b4a41a47a67c788e6b0625fa517ec8872e99bb6c"},{"url":"https://git.kernel.org/stable/c/a97b2b942d2f8f12fbd6a7caafc735d1ad115e6b"},{"url":"https://git.kernel.org/stable/c/6486e11a6e2f679597af2d5bb48c3b07a2b2a7ba"}],"title":"wifi: mt76: mt7915: clear wcid mask under mutex after RCU pointer clear","x_generator":{"engine":"bippy-1.2.0"}}}}