{"schema_version":"1.9.0","id":"CVE-2024-26601","published":"2024-02-24T14:56:56.324Z","modified":"2026-08-12T03:51:45.035392452Z","related":["SUSE-SU-2024:1641-1","SUSE-SU-2024:1644-1","SUSE-SU-2024:1647-1","SUSE-SU-2024:1659-1","SUSE-SU-2024:1663-1","SUSE-SU-2024:2135-1","SUSE-SU-2024:2203-1","SUSE-SU-2024:2973-1","SUSE-SU-2025:20008-1"],"summary":"ext4: regenerate buddy after block freeing failed if under fc replay","details":"In the Linux kernel, the following vulnerability has been resolved:\n\next4: regenerate buddy after block freeing failed if under fc replay\n\nThis mostly reverts commit 6bd97bf273bd (\"ext4: remove redundant\nmb_regenerate_buddy()\") and reintroduces mb_regenerate_buddy(). Based on\ncode in mb_free_blocks(), fast commit replay can end up marking as free\nblocks that are already marked as such. This causes corruption of the\nbuddy bitmap so we need to regenerate it in that case.","affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0983142c5f17a62055ec851372273c3bc77e4788"},{"fixed":"94ebf71bddbcd4ab1ce43ae32c6cb66396d2d51a"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6bd97bf273bdb4944904e57480f6545bca48ad77"},{"fixed":"c1317822e2de80e78f137d3a2d99febab1b80326"},{"fixed":"78327acd4cdc4a1601af718b781eece577b6b7d4"},{"fixed":"ea42d6cffb0dd27a417f410b9d0011e9859328cb"},{"fixed":"6b0d48647935e4b8c7b75d1eccb9043fcd4ee581"},{"fixed":"c9b528c35795b711331ed36dc3dbee90d5812d4e"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5.10.181"},{"fixed":"5.10.211"}]}],"versions":["v5.10.210","v5.10.209","v5.10.208","v5.10.207","v5.10.206","v5.10.205","v5.10.204","v5.10.203","v5.10.202","v5.10.201","v5.10.200","v5.10.199","v5.10.198","v5.10.197","v5.10.196","v5.10.195","v5.10.194","v5.10.193","v5.10.192","v5.10.191","v5.10.190","v5.10.189","v5.10.188","v5.10.187","v5.10.186","v5.10.185","v5.10.184","v5.10.183","v5.10.182","v5.10.181"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-26601.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.10.211"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.150"},{"fixed":"6.1.78"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.6.17"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.7.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-26601.json"}}],"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/6b0d48647935e4b8c7b75d1eccb9043fcd4ee581"},{"type":"WEB","url":"https://git.kernel.org/stable/c/78327acd4cdc4a1601af718b781eece577b6b7d4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/94ebf71bddbcd4ab1ce43ae32c6cb66396d2d51a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c1317822e2de80e78f137d3a2d99febab1b80326"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c9b528c35795b711331ed36dc3dbee90d5812d4e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ea42d6cffb0dd27a417f410b9d0011e9859328cb"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26601.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-26601"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26601.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}