{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-50273","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-10-21T19:36:19.983Z","datePublished":"2024-11-19T01:30:12.589Z","dateUpdated":"2025-11-03T22:27:54.002Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T09:50:28.471Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: reinitialize delayed ref list after deleting it from the list\n\nAt insert_delayed_ref() if we need to update the action of an existing\nref to BTRFS_DROP_DELAYED_REF, we delete the ref from its ref head's\nref_add_list using list_del(), which leaves the ref's add_list member\nnot reinitialized, as list_del() sets the next and prev members of the\nlist to LIST_POISON1 and LIST_POISON2, respectively.\n\nIf later we end up calling drop_delayed_ref() against the ref, which can\nhappen during merging or when destroying delayed refs due to a transaction\nabort, we can trigger a crash since at drop_delayed_ref() we call\nlist_empty() against the ref's add_list, which returns false since\nthe list was not reinitialized after the list_del() and as a consequence\nwe call list_del() again at drop_delayed_ref(). This results in an\ninvalid list access since the next and prev members are set to poison\npointers, resulting in a splat if CONFIG_LIST_HARDENED and\nCONFIG_DEBUG_LIST are set or invalid poison pointer dereferences\notherwise.\n\nSo fix this by deleting from the list with list_del_init() instead."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/btrfs/delayed-ref.c"],"versions":[{"version":"1d57ee941692d0cc928526e21a1557b2ae3e11db","lessThan":"2fd0948a483e9cb2d669c7199bc620a21c97673d","status":"affected","versionType":"git"},{"version":"1d57ee941692d0cc928526e21a1557b2ae3e11db","lessThan":"93c5b8decc0ef39ba84f4211d2db6da0a4aefbeb","status":"affected","versionType":"git"},{"version":"1d57ee941692d0cc928526e21a1557b2ae3e11db","lessThan":"bf0b0c6d159767c0d1c21f793950d78486690ee0","status":"affected","versionType":"git"},{"version":"1d57ee941692d0cc928526e21a1557b2ae3e11db","lessThan":"c24fa427fc0ae827b2a3a07f13738cbf82c3f851","status":"affected","versionType":"git"},{"version":"1d57ee941692d0cc928526e21a1557b2ae3e11db","lessThan":"2cb1a73d1d44a1c11b0ee5eeced765dd80ec48e6","status":"affected","versionType":"git"},{"version":"1d57ee941692d0cc928526e21a1557b2ae3e11db","lessThan":"f04be6d68f715c1473a8422fc0460f57b5e99931","status":"affected","versionType":"git"},{"version":"1d57ee941692d0cc928526e21a1557b2ae3e11db","lessThan":"50a3933760b427759afdd23156a7280a19357a92","status":"affected","versionType":"git"},{"version":"1d57ee941692d0cc928526e21a1557b2ae3e11db","lessThan":"c9a75ec45f1111ef530ab186c2a7684d0a0c9245","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/btrfs/delayed-ref.c"],"versions":[{"version":"4.10","status":"affected"},{"version":"0","lessThan":"4.10","status":"unaffected","versionType":"semver"},{"version":"4.19.324","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.286","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.230","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.172","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.117","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.61","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.11.8","lessThanOrEqual":"6.11.*","status":"unaffected","versionType":"semver"},{"version":"6.12","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":"4.10","versionEndExcluding":"4.19.324"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.10","versionEndExcluding":"5.4.286"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.10","versionEndExcluding":"5.10.230"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.10","versionEndExcluding":"5.15.172"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.10","versionEndExcluding":"6.1.117"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.10","versionEndExcluding":"6.6.61"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.10","versionEndExcluding":"6.11.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.10","versionEndExcluding":"6.12"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/2fd0948a483e9cb2d669c7199bc620a21c97673d"},{"url":"https://git.kernel.org/stable/c/93c5b8decc0ef39ba84f4211d2db6da0a4aefbeb"},{"url":"https://git.kernel.org/stable/c/bf0b0c6d159767c0d1c21f793950d78486690ee0"},{"url":"https://git.kernel.org/stable/c/c24fa427fc0ae827b2a3a07f13738cbf82c3f851"},{"url":"https://git.kernel.org/stable/c/2cb1a73d1d44a1c11b0ee5eeced765dd80ec48e6"},{"url":"https://git.kernel.org/stable/c/f04be6d68f715c1473a8422fc0460f57b5e99931"},{"url":"https://git.kernel.org/stable/c/50a3933760b427759afdd23156a7280a19357a92"},{"url":"https://git.kernel.org/stable/c/c9a75ec45f1111ef530ab186c2a7684d0a0c9245"}],"title":"btrfs: reinitialize delayed ref list after deleting it from the list","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"id":"CVE-2024-50273","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T20:14:59.605584Z"}}}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","cweId":"CWE-908","description":"CWE-908 Use of Uninitialized Resource"}]}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-10-01T20:17:23.045Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"},{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-03T22:27:54.002Z"}}]}}