{"id":"CVE-2024-50230","summary":"nilfs2: fix kernel bug due to missing clearing of checked flag","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: fix kernel bug due to missing clearing of checked flag\n\nSyzbot reported that in directory operations after nilfs2 detects\nfilesystem corruption and degrades to read-only,\n__block_write_begin_int(), which is called to prepare block writes, may\nfail the BUG_ON check for accesses exceeding the folio/page size,\ntriggering a kernel bug.\n\nThis was found to be because the \"checked\" flag of a page/folio was not\ncleared when it was discarded by nilfs2's own routine, which causes the\nsanity check of directory entries to be skipped when the directory\npage/folio is reloaded.  So, fix that.\n\nThis was necessary when the use of nilfs2's own page discard routine was\napplied to more than just metadata files.","modified":"2026-04-02T12:21:21.215557Z","published":"2024-11-09T10:14:40.576Z","related":["MGASA-2024-0368","MGASA-2024-0369","SUSE-SU-2024:4314-1","SUSE-SU-2024:4315-1","SUSE-SU-2024:4316-1","SUSE-SU-2024:4318-1","SUSE-SU-2024:4364-1","SUSE-SU-2024:4376-1","SUSE-SU-2024:4387-1","SUSE-SU-2025:20163-1","SUSE-SU-2025:20164-1","SUSE-SU-2025:20246-1","SUSE-SU-2025:20247-1","USN-7276-1","USN-7277-1","openSUSE-SU-2024:14500-1","openSUSE-SU-2025:14705-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50230.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/41e192ad2779cae0102879612dfe46726e4396aa"},{"type":"WEB","url":"https://git.kernel.org/stable/c/56c6171932a7fb267ac6cb4ff8759b93ee1d0e2e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/64afad73e4623308d8943645e5631f2c7a2d7971"},{"type":"WEB","url":"https://git.kernel.org/stable/c/994b2fa13a6c9cf3feca93090a9c337d48e3d60d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/aa0cee46c5d3fd9a39575a4c8a4f65f25f095b89"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cd0cdb51b15203fa27d4b714be83b7dfffa0b752"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f05dbebb8ee34882505d53d83af7d18f28a49248"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f2f1fa446676c21edb777e6d2bc4fa8f956fab68"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50230.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-50230"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"8c26c4e2694a163d525976e804d81cd955bbb40c"},{"fixed":"994b2fa13a6c9cf3feca93090a9c337d48e3d60d"},{"fixed":"64afad73e4623308d8943645e5631f2c7a2d7971"},{"fixed":"aa0cee46c5d3fd9a39575a4c8a4f65f25f095b89"},{"fixed":"f05dbebb8ee34882505d53d83af7d18f28a49248"},{"fixed":"cd0cdb51b15203fa27d4b714be83b7dfffa0b752"},{"fixed":"f2f1fa446676c21edb777e6d2bc4fa8f956fab68"},{"fixed":"56c6171932a7fb267ac6cb4ff8759b93ee1d0e2e"},{"fixed":"41e192ad2779cae0102879612dfe46726e4396aa"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-50230.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}