{"id":"CVE-2026-53101","state":"PUBLISHED","title":"wifi: mt76: mt7921: fix potential deadlock in mt7921_roc_abort_sync","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7921: fix potential deadlock in mt7921_roc_abort_sync\n\nroc_abort_sync() can deadlock with roc_work(). roc_work() holds\ndev->mt76.mutex, while cancel_work_sync() waits for roc_work()\nto finish. If the caller already owns the same mutex, both\nsides block and no progress is possible.\n\nThis deadlock can occur during station removal when\nmt76_sta_state() -> mt76_sta_remove() -> mt7921_mac_sta_remove() ->\nmt7921_roc_abort_sync() invokes cancel_work_sync() while\nroc_work() is still running and holding dev->mt76.mutex.\n\nThis avoids the mutex deadlock and preserves exactly-once\nwork ownership.","publishedAt":"2026-06-24T16:30:37.871Z","updatedAt":"2026-07-04T11:50:50.214Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"352d966126e66d825244f1185eb9f2d904c83dd4","status":"affected","lessThan":"b4faaa617af3f4173e64169b0ec1af8f9c5bca10","versionType":"git"},{"version":"352d966126e66d825244f1185eb9f2d904c83dd4","status":"affected","lessThan":"35180c772f5e11e2fa4d80d3dfd50906cb6d9646","versionType":"git"},{"version":"352d966126e66d825244f1185eb9f2d904c83dd4","status":"affected","lessThan":"91e77840bf13de3add125060cf8b32ca24a52c8c","versionType":"git"},{"version":"352d966126e66d825244f1185eb9f2d904c83dd4","status":"affected","lessThan":"d5059e52fd8bc624ec4255c9fa01a266513d126b","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt7921/main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.9","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.9","versionType":"semver"},{"version":"6.12.95","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.33","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.10","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","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/mt7921/main.c"]}],"references":["https://git.kernel.org/stable/c/b4faaa617af3f4173e64169b0ec1af8f9c5bca10","https://git.kernel.org/stable/c/35180c772f5e11e2fa4d80d3dfd50906cb6d9646","https://git.kernel.org/stable/c/91e77840bf13de3add125060cf8b32ca24a52c8c","https://git.kernel.org/stable/c/d5059e52fd8bc624ec4255c9fa01a266513d126b"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/53xxx/CVE-2026-53101.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53101","state":"PUBLISHED","datePublished":"2026-06-24T16:30:37.871Z","dateUpdated":"2026-07-04T11:50:50.214Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-06-09T07:44:35.384Z"},"containers":{"cna":{"title":"wifi: mt76: mt7921: fix potential deadlock in mt7921_roc_abort_sync","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7921: fix potential deadlock in mt7921_roc_abort_sync\n\nroc_abort_sync() can deadlock with roc_work(). roc_work() holds\ndev->mt76.mutex, while cancel_work_sync() waits for roc_work()\nto finish. If the caller already owns the same mutex, both\nsides block and no progress is possible.\n\nThis deadlock can occur during station removal when\nmt76_sta_state() -> mt76_sta_remove() -> mt7921_mac_sta_remove() ->\nmt7921_roc_abort_sync() invokes cancel_work_sync() while\nroc_work() is still running and holding dev->mt76.mutex.\n\nThis avoids the mutex deadlock and preserves exactly-once\nwork ownership."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"352d966126e66d825244f1185eb9f2d904c83dd4","status":"affected","lessThan":"b4faaa617af3f4173e64169b0ec1af8f9c5bca10","versionType":"git"},{"version":"352d966126e66d825244f1185eb9f2d904c83dd4","status":"affected","lessThan":"35180c772f5e11e2fa4d80d3dfd50906cb6d9646","versionType":"git"},{"version":"352d966126e66d825244f1185eb9f2d904c83dd4","status":"affected","lessThan":"91e77840bf13de3add125060cf8b32ca24a52c8c","versionType":"git"},{"version":"352d966126e66d825244f1185eb9f2d904c83dd4","status":"affected","lessThan":"d5059e52fd8bc624ec4255c9fa01a266513d126b","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt7921/main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.9","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.9","versionType":"semver"},{"version":"6.12.95","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.33","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.10","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","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/mt7921/main.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/b4faaa617af3f4173e64169b0ec1af8f9c5bca10"},{"url":"https://git.kernel.org/stable/c/35180c772f5e11e2fa4d80d3dfd50906cb6d9646"},{"url":"https://git.kernel.org/stable/c/91e77840bf13de3add125060cf8b32ca24a52c8c"},{"url":"https://git.kernel.org/stable/c/d5059e52fd8bc624ec4255c9fa01a266513d126b"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-07-04T11:50:50.214Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"6.12.95"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"6.18.33"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"7.0.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"7.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}