{"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"}}}}

{}

{"cveTags": [], "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."}], "id": "CVE-2025-40198", "lastModified": "2026-04-15T00:35:42.020", "metrics": {}, "published": "2025-11-12T22:15:46.923", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/01829af7656b56d83682b3491265d583d502e502"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2a0cf438320cdb783e0378570744c0ef0d83e934"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7bf46ff83a0ef11836e38ebd72cdc5107209342d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8ecb790ea8c3fc69e77bace57f14cf0d7c177bd8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a6e94557cd05adc82fae0400f6e17745563e5412"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b2bac84fde28fb6a88817b8b761abda17a1d300b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e651294218d2684302ee5ed95ccf381646f3e5b4"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Deferred"}

{"bugzilla": {"description": "kernel: ext4: avoid potential buffer over-read in parse_apply_sb_mount_options()", "id": "2414744", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2414744"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2025-40198", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-11-12T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-40198\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-40198\nhttps://lore.kernel.org/linux-cve-announce/2025111246-CVE-2025-40198-7a99@gregkh/T"], "threat_severity": "Low"}

{"created": "2025-11-13T09:52:15.298855+00:00", "updated": "2025-11-13T09:52:15.298888+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}