{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-40198","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-04-16T07:20:57.178Z","datePublished":"2025-11-12T21:56:33.220Z","dateUpdated":"2026-05-11T21:44:39.405Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:44:39.405Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\next4: avoid potential buffer over-read in parse_apply_sb_mount_options()\n\nUnlike other strings in the ext4 superblock, we rely on tune2fs to\nmake sure s_mount_opts is NUL terminated.  Harden\nparse_apply_sb_mount_options() by treating s_mount_opts as a potential\n__nonstring."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ext4/super.c"],"versions":[{"version":"8b67f04ab9de5d8f3a71aef72bf02c995a506db5","lessThan":"7bf46ff83a0ef11836e38ebd72cdc5107209342d","status":"affected","versionType":"git"},{"version":"8b67f04ab9de5d8f3a71aef72bf02c995a506db5","lessThan":"b2bac84fde28fb6a88817b8b761abda17a1d300b","status":"affected","versionType":"git"},{"version":"8b67f04ab9de5d8f3a71aef72bf02c995a506db5","lessThan":"e651294218d2684302ee5ed95ccf381646f3e5b4","status":"affected","versionType":"git"},{"version":"8b67f04ab9de5d8f3a71aef72bf02c995a506db5","lessThan":"01829af7656b56d83682b3491265d583d502e502","status":"affected","versionType":"git"},{"version":"8b67f04ab9de5d8f3a71aef72bf02c995a506db5","lessThan":"2a0cf438320cdb783e0378570744c0ef0d83e934","status":"affected","versionType":"git"},{"version":"8b67f04ab9de5d8f3a71aef72bf02c995a506db5","lessThan":"a6e94557cd05adc82fae0400f6e17745563e5412","status":"affected","versionType":"git"},{"version":"8b67f04ab9de5d8f3a71aef72bf02c995a506db5","lessThan":"8ecb790ea8c3fc69e77bace57f14cf0d7c177bd8","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/ext4/super.c"],"versions":[{"version":"2.6.36","status":"affected"},{"version":"0","lessThan":"2.6.36","status":"unaffected","versionType":"semver"},{"version":"5.4.301","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.246","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"6.1.158","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.114","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.54","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.17.4","lessThanOrEqual":"6.17.*","status":"unaffected","versionType":"semver"},{"version":"6.18","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":"2.6.36","versionEndExcluding":"5.4.301"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.36","versionEndExcluding":"5.10.246"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.36","versionEndExcluding":"6.1.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.36","versionEndExcluding":"6.6.114"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.36","versionEndExcluding":"6.12.54"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.36","versionEndExcluding":"6.17.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.36","versionEndExcluding":"6.18"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/7bf46ff83a0ef11836e38ebd72cdc5107209342d"},{"url":"https://git.kernel.org/stable/c/b2bac84fde28fb6a88817b8b761abda17a1d300b"},{"url":"https://git.kernel.org/stable/c/e651294218d2684302ee5ed95ccf381646f3e5b4"},{"url":"https://git.kernel.org/stable/c/01829af7656b56d83682b3491265d583d502e502"},{"url":"https://git.kernel.org/stable/c/2a0cf438320cdb783e0378570744c0ef0d83e934"},{"url":"https://git.kernel.org/stable/c/a6e94557cd05adc82fae0400f6e17745563e5412"},{"url":"https://git.kernel.org/stable/c/8ecb790ea8c3fc69e77bace57f14cf0d7c177bd8"}],"title":"ext4: avoid potential buffer over-read in parse_apply_sb_mount_options()","x_generator":{"engine":"bippy-1.2.0"}}}}