{"id":"CVE-2025-39842","state":"PUBLISHED","title":"ocfs2: prevent release journal inode after journal shutdown","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: prevent release journal inode after journal shutdown\n\nBefore calling ocfs2_delete_osb(), ocfs2_journal_shutdown() has already\nbeen executed in ocfs2_dismount_volume(), so osb->journal must be NULL. \nTherefore, the following calltrace will inevitably fail when it reaches\njbd2_journal_release_jbd_inode().\n\nocfs2_dismount_volume()->\n  ocfs2_delete_osb()->\n    ocfs2_free_slot_info()->\n      __ocfs2_free_slot_info()->\n        evict()->\n          ocfs2_evict_inode()->\n            ocfs2_clear_inode()->\n\t      jbd2_journal_release_jbd_inode(osb->journal->j_journal,\n\nAdding osb->journal checks will prevent null-ptr-deref during the above\nexecution path.","publishedAt":"2025-09-19T15:26:17.075Z","updatedAt":"2026-05-12T12:07:30.064Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"da5e7c87827e8caa6a1eeec6d95dcf74ab592a01","status":"affected","lessThan":"42c415c53ad2065088cc411d08925effa5b3d255","versionType":"git"},{"version":"da5e7c87827e8caa6a1eeec6d95dcf74ab592a01","status":"affected","lessThan":"e9188f66e94955431ddbe2cd1cdf8ff2bb486abf","versionType":"git"},{"version":"da5e7c87827e8caa6a1eeec6d95dcf74ab592a01","status":"affected","lessThan":"f4a917e6cd6c798f7adf39907f117fc754db1283","versionType":"git"},{"version":"da5e7c87827e8caa6a1eeec6d95dcf74ab592a01","status":"affected","lessThan":"85e66331b60601d903cceaf8c10a234db863cd78","versionType":"git"},{"version":"da5e7c87827e8caa6a1eeec6d95dcf74ab592a01","status":"affected","lessThan":"f46e8ef8bb7b452584f2e75337b619ac51a7cadf","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ocfs2/inode.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.16","versionType":"semver"},{"version":"6.1.151","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.105","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.46","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.16.6","status":"unaffected","lessThanOrEqual":"6.16.*","versionType":"semver"},{"version":"6.17","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ocfs2/inode.c"]}],"references":["https://git.kernel.org/stable/c/42c415c53ad2065088cc411d08925effa5b3d255","https://git.kernel.org/stable/c/e9188f66e94955431ddbe2cd1cdf8ff2bb486abf","https://git.kernel.org/stable/c/f4a917e6cd6c798f7adf39907f117fc754db1283","https://git.kernel.org/stable/c/85e66331b60601d903cceaf8c10a234db863cd78","https://git.kernel.org/stable/c/f46e8ef8bb7b452584f2e75337b619ac51a7cadf","https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html","https://cert-portal.siemens.com/productcert/html/ssa-032379.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/39xxx/CVE-2025-39842.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-39842","state":"PUBLISHED","datePublished":"2025-09-19T15:26:17.075Z","dateUpdated":"2026-05-12T12:07:30.064Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T07:20:57.141Z"},"containers":{"cna":{"title":"ocfs2: prevent release journal inode after journal shutdown","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: prevent release journal inode after journal shutdown\n\nBefore calling ocfs2_delete_osb(), ocfs2_journal_shutdown() has already\nbeen executed in ocfs2_dismount_volume(), so osb->journal must be NULL. \nTherefore, the following calltrace will inevitably fail when it reaches\njbd2_journal_release_jbd_inode().\n\nocfs2_dismount_volume()->\n  ocfs2_delete_osb()->\n    ocfs2_free_slot_info()->\n      __ocfs2_free_slot_info()->\n        evict()->\n          ocfs2_evict_inode()->\n            ocfs2_clear_inode()->\n\t      jbd2_journal_release_jbd_inode(osb->journal->j_journal,\n\nAdding osb->journal checks will prevent null-ptr-deref during the above\nexecution 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