{"schema":"threatline.record/2","record":{"id":"CVE-2026-98921","aliases":[],"summary":"ovl: fix UAF in ovl_do_mkdir() debug print","details":"In the Linux kernel, the following vulnerability has been resolved:\n\novl: fix UAF in ovl_do_mkdir() debug print\n\novl_do_mkdir() prints the input dentry with %pd after vfs_mkdir().\nSince commit fe497f0759e0 (\"VFS: change vfs_mkdir() to unlock on\nfailure.\"), vfs_mkdir() calls end_creating() on the input dentry on\nfailure and may replace it on success, so the post-call %pd can\nuse-after-free the dentry when CONFIG_OVERLAY_FS_DEBUG is enabled.\n\nPrint the dentry before the call and only the result afterward.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98921","source_modified_at":"2026-10-23T12:05:33.583Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Linux","vendor":"Linux","versions":[{"version":"fe497f0759e0efb949f9480911d00b6045c21f50","lessThan":"719bd33ab359c539a68a278c15a97deb77565cdb","status":"affected","versionType":"git"},{"version":"fe497f0759e0efb949f9480911d00b6045c21f50","lessThan":"ae146bc1abdeb4607abf2975b858c053024e8ac1","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98921","source_modified_at":"2026-10-23T12:05:33.583Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Linux","vendor":"Linux","versions":[{"version":"6.19","status":"affected"},{"version":"0","lessThan":"6.19","status":"unaffected","versionType":"semver"},{"version":"7.2.9","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98921","source_modified_at":"2026-10-23T12:05:33.583Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"Linux","ecosystem":null},"version":"719bd33ab359c539a68a278c15a97deb77565cdb","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-23T12:02:38.969Z","modified_at":"2026-10-23T12:05:33.583Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98921","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T12:05:33.583Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/719bd33ab359c539a68a278c15a97deb77565cdb"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/ae146bc1abdeb4607abf2975b858c053024e8ac1"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-23T12:05:33.583Z","content_hash":"847dfa1c22f3671ef0654922a05ccc010946c1d84eade5a68c978ae7c8861282"}}