{"id":"CVE-2025-40195","state":"PUBLISHED","title":"mount: handle NULL values in mnt_ns_release()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmount: handle NULL values in mnt_ns_release()\n\nWhen calling in listmount() mnt_ns_release() may be passed a NULL\npointer. Handle that case gracefully.","publishedAt":"2025-11-12T21:56:32.311Z","updatedAt":"2026-05-11T21:44:35.867Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1901c92497bd90caf608a474f1bf4d8795b372a2","status":"affected","lessThan":"2d68f8a7379d9c61005e982600c61948d4d019bd","versionType":"git"},{"version":"1901c92497bd90caf608a474f1bf4d8795b372a2","status":"affected","lessThan":"99ae3e70a293834d0274c46a37120c71a24a4995","versionType":"git"},{"version":"1901c92497bd90caf608a474f1bf4d8795b372a2","status":"affected","lessThan":"6c7ca6a02f8f9549a438a08a23c6327580ecf3d6","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/namespace.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.11","versionType":"semver"},{"version":"6.12.54","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.17.4","status":"unaffected","lessThanOrEqual":"6.17.*","versionType":"semver"},{"version":"6.18","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/namespace.c"]}],"references":["https://git.kernel.org/stable/c/2d68f8a7379d9c61005e982600c61948d4d019bd","https://git.kernel.org/stable/c/99ae3e70a293834d0274c46a37120c71a24a4995","https://git.kernel.org/stable/c/6c7ca6a02f8f9549a438a08a23c6327580ecf3d6"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/40xxx/CVE-2025-40195.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-40195","state":"PUBLISHED","datePublished":"2025-11-12T21:56:32.311Z","dateUpdated":"2026-05-11T21:44:35.867Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T07:20:57.178Z"},"containers":{"cna":{"title":"mount: handle NULL values in mnt_ns_release()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmount: handle NULL values in mnt_ns_release()\n\nWhen calling in listmount() mnt_ns_release() may be passed a NULL\npointer. Handle that case gracefully."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1901c92497bd90caf608a474f1bf4d8795b372a2","status":"affected","lessThan":"2d68f8a7379d9c61005e982600c61948d4d019bd","versionType":"git"},{"version":"1901c92497bd90caf608a474f1bf4d8795b372a2","status":"affected","lessThan":"99ae3e70a293834d0274c46a37120c71a24a4995","versionType":"git"},{"version":"1901c92497bd90caf608a474f1bf4d8795b372a2","status":"affected","lessThan":"6c7ca6a02f8f9549a438a08a23c6327580ecf3d6","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/namespace.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.11","versionType":"semver"},{"version":"6.12.54","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.17.4","status":"unaffected","lessThanOrEqual":"6.17.*","versionType":"semver"},{"version":"6.18","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/namespace.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/2d68f8a7379d9c61005e982600c61948d4d019bd"},{"url":"https://git.kernel.org/stable/c/99ae3e70a293834d0274c46a37120c71a24a4995"},{"url":"https://git.kernel.org/stable/c/6c7ca6a02f8f9549a438a08a23c6327580ecf3d6"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:44:35.867Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.12.54"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.17.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.18"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}