{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-38396","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-04-16T04:51:24.011Z","datePublished":"2025-07-25T12:53:40.761Z","dateUpdated":"2026-05-11T21:27:10.399Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:27:10.399Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nfs: export anon_inode_make_secure_inode() and fix secretmem LSM bypass\n\nExport anon_inode_make_secure_inode() to allow KVM guest_memfd to create\nanonymous inodes with proper security context. This replaces the current\npattern of calling alloc_anon_inode() followed by\ninode_init_security_anon() for creating security context manually.\n\nThis change also fixes a security regression in secretmem where the\nS_PRIVATE flag was not cleared after alloc_anon_inode(), causing\nLSM/SELinux checks to be bypassed for secretmem file descriptors.\n\nAs guest_memfd currently resides in the KVM module, we need to export this\nsymbol for use outside the core kernel. In the future, guest_memfd might be\nmoved to core-mm, at which point the symbols no longer would have to be\nexported. When/if that happens is still unclear."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/anon_inodes.c","include/linux/fs.h","mm/secretmem.c"],"versions":[{"version":"2bfe15c5261212130f1a71f32a300bcf426443d4","lessThan":"66d29d757c968d2bee9124816da5d718eb352959","status":"affected","versionType":"git"},{"version":"2bfe15c5261212130f1a71f32a300bcf426443d4","lessThan":"e3eed01347721cd7a8819568161c91d538fbf229","status":"affected","versionType":"git"},{"version":"2bfe15c5261212130f1a71f32a300bcf426443d4","lessThan":"f94c422157f3e43dd31990567b3e5d54b3e5b32b","status":"affected","versionType":"git"},{"version":"2bfe15c5261212130f1a71f32a300bcf426443d4","lessThan":"6ca45ea48530332a4ba09595767bd26d3232743b","status":"affected","versionType":"git"},{"version":"2bfe15c5261212130f1a71f32a300bcf426443d4","lessThan":"cbe4134ea4bc493239786220bd69cb8a13493190","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/anon_inodes.c","include/linux/fs.h","mm/secretmem.c"],"versions":[{"version":"6.0","status":"affected"},{"version":"0","lessThan":"6.0","status":"unaffected","versionType":"semver"},{"version":"6.1.146","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.97","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.37","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.15.6","lessThanOrEqual":"6.15.*","status":"unaffected","versionType":"semver"},{"version":"6.16","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.1.146"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.6.97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.12.37"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.15.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.16"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/66d29d757c968d2bee9124816da5d718eb352959"},{"url":"https://git.kernel.org/stable/c/e3eed01347721cd7a8819568161c91d538fbf229"},{"url":"https://git.kernel.org/stable/c/f94c422157f3e43dd31990567b3e5d54b3e5b32b"},{"url":"https://git.kernel.org/stable/c/6ca45ea48530332a4ba09595767bd26d3232743b"},{"url":"https://git.kernel.org/stable/c/cbe4134ea4bc493239786220bd69cb8a13493190"}],"title":"fs: export anon_inode_make_secure_inode() and fix secretmem LSM bypass","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-03T17:37:29.745Z"}}]}}