{"id":"CVE-2024-40977","state":"PUBLISHED","title":"wifi: mt76: mt7921s: fix potential hung tasks during chip recovery","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7921s: fix potential hung tasks during chip recovery\n\nDuring chip recovery (e.g. chip reset), there is a possible situation that\nkernel worker reset_work is holding the lock and waiting for kernel thread\nstat_worker to be parked, while stat_worker is waiting for the release of\nthe same lock.\nIt causes a deadlock resulting in the dumping of hung tasks messages and\npossible rebooting of the device.\n\nThis patch prevents the execution of stat_worker during the chip recovery.","publishedAt":"2024-07-12T12:32:13.447Z","updatedAt":"2026-05-11T20:23:30.892Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","status":"affected","lessThan":"0b81faa05b0b9feb3ae2d69be1d21f0d126ecb08","versionType":"git"},{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","status":"affected","lessThan":"85edd783f4539a994d66c4c014d5858f490b7a02","versionType":"git"},{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","status":"affected","lessThan":"e974dd4c22a23ec3ce579fb6d31a674ac0435da9","versionType":"git"},{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","status":"affected","lessThan":"ecf0b2b8a37c8464186620bef37812a117ff6366","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt7921/mac.c","drivers/net/wireless/mediatek/mt76/mt7921/pci_mac.c","drivers/net/wireless/mediatek/mt76/mt7921/sdio_mac.c","drivers/net/wireless/mediatek/mt76/sdio.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.16","versionType":"semver"},{"version":"6.1.96","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.36","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.9.7","status":"unaffected","lessThanOrEqual":"6.9.*","versionType":"semver"},{"version":"6.10","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/mac.c","drivers/net/wireless/mediatek/mt76/mt7921/pci_mac.c","drivers/net/wireless/mediatek/mt76/mt7921/sdio_mac.c","drivers/net/wireless/mediatek/mt76/sdio.c"]}],"references":["https://git.kernel.org/stable/c/0b81faa05b0b9feb3ae2d69be1d21f0d126ecb08","https://git.kernel.org/stable/c/85edd783f4539a994d66c4c014d5858f490b7a02","https://git.kernel.org/stable/c/e974dd4c22a23ec3ce579fb6d31a674ac0435da9","https://git.kernel.org/stable/c/ecf0b2b8a37c8464186620bef37812a117ff6366","https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:07:39.287Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/40xxx/CVE-2024-40977.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-40977","state":"PUBLISHED","datePublished":"2024-07-12T12:32:13.447Z","dateUpdated":"2026-05-11T20:23:30.892Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-07-12T12:17:45.603Z"},"containers":{"cna":{"title":"wifi: mt76: mt7921s: fix potential hung tasks during chip recovery","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7921s: fix potential hung tasks during chip recovery\n\nDuring chip recovery (e.g. chip reset), there is a possible situation that\nkernel worker reset_work is holding the lock and waiting for kernel thread\nstat_worker to be parked, while stat_worker is waiting for the release of\nthe same lock.\nIt causes a deadlock resulting in the dumping of hung tasks messages and\npossible rebooting of the device.\n\nThis patch prevents the execution of stat_worker during the chip 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