{"id":"CVE-2025-38321","revision":null,"records":[{"revision":"44b69d99685641108d01348427881986","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-38321","aliases":[],"title":"smb: Log an error when close_all_cached_dirs fails","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: Log an error when close_all_cached_dirs fails\n\nUnder low-memory conditions, close_all_cached_dirs() can't move the\ndentries to a separate list to dput() them once the locks are dropped.\nThis will result in a \"Dentry still in use\" error, so add an error\nmessage that makes it clear this is what happened:\n\n[ 495.281119] CIFS: VFS: \\\\otters.example.com\\share Out of memory while dropping dentries\n[ 495.281595] ------------[ cut here ]------------\n[ 495.281887] BUG: Dentry ffff888115531138{i=78,n=/} still in use (2) [unmount of cifs cifs]\n[ 495.282391] WARNING: CPU: 1 PID: 2329 at fs/dcache.c:1536 umount_check+0xc8/0xf0\n\nAlso, bail out of looping through all tcons as soon as a single\nallocation fails, since we're already in trouble, and kmalloc() attempts\nfor subseqeuent tcons are likely to fail just like the first one did.","state":0,"publishedAt":"2025-07-10T08:14:57.046+00:00","modifiedAt":"2026-10-15T21:52:14.275+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"fs/smb/client/cached_dir.c\"\n ],\n \"versions\": [\n {\n \"version\": \"73934e535cffbda1490fa97d82690a0f9aa73e94\",\n \"lessThan\": \"b8ced2b9a23a1a2c1e0ed8d0d02512e51bdf38da\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"548812afd96982a76a93ba76c0582ea670c40d9e\",\n \"lessThan\": \"43f26094d6702e494e800532c3f1606e7a68eb30\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"3fa640d035e5ae526769615c35cb9ed4be6e3662\",\n \"lessThan\": \"4479db143390bdcadc1561292aab579cdfa9f6c6\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"3fa640d035e5ae526769615c35cb9ed4be6e3662\",\n \"lessThan\": \"a2182743a8b4969481f64aec4908ff162e8a206c\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"ff4528bbc82d0d90073751f7b49e7b9e9c7e5638\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"6.6.64\",\n \"lessThan\": \"6.6.95\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.2\",\n \"lessThan\": \"6.12.35\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.11.11\",\n \"lessThan\": \"6.12\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"fs/smb/client/cached_dir.c\"\n ],\n \"versions\": [\n {\n \"version\": \"6.13\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"6.13\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.95\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.35\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.15.4\",\n \"lessThanOrEqual\": \"6.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.16\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/b8ced2b9a23a1a2c1e0ed8d0d02512e51bdf38da","https://git.kernel.org/stable/c/43f26094d6702e494e800532c3f1606e7a68eb30","https://git.kernel.org/stable/c/4479db143390bdcadc1561292aab579cdfa9f6c6","https://git.kernel.org/stable/c/a2182743a8b4969481f64aec4908ff162e8a206c"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-38321","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-38321","identifiers":["CVE-2025-38321"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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