{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-40055", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T07:20:57.157Z", "datePublished": "2025-10-28T11:48:29.665Z", "dateUpdated": "2026-05-11T21:41:36.488Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:41:36.488Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: fix double free in user_cluster_connect()\n\nuser_cluster_disconnect() frees \"conn->cc_private\" which is \"lc\" but then\nthe error handling frees \"lc\" a second time. Set \"lc\" to NULL on this\npath to avoid a double free."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/ocfs2/stack_user.c"], "versions": [{"version": "c994c2ebdbbc391a42f177c8eb7882ebf3f142d8", "lessThan": "283333079d96c84baa91f0c62b5e0cbec246b7a2", "status": "affected", "versionType": "git"}, {"version": "c994c2ebdbbc391a42f177c8eb7882ebf3f142d8", "lessThan": "f992bc72f681c32a682d474a29c2135a64d4f4e5", "status": "affected", "versionType": "git"}, {"version": "c994c2ebdbbc391a42f177c8eb7882ebf3f142d8", "lessThan": "827c8efa0d1afe817b90f3618afff552e88348d2", "status": "affected", "versionType": "git"}, {"version": "c994c2ebdbbc391a42f177c8eb7882ebf3f142d8", "lessThan": "bfe011297ddd2d0cd64752978baaa0c04cd20573", "status": "affected", "versionType": "git"}, {"version": "c994c2ebdbbc391a42f177c8eb7882ebf3f142d8", "lessThan": "7e76fe9dfadbc00364d7523d5a109e9d3e4a7db2", "status": "affected", "versionType": "git"}, {"version": "c994c2ebdbbc391a42f177c8eb7882ebf3f142d8", "lessThan": "694d5b401036a614f8080085a9de6f86ff0742dc", "status": "affected", "versionType": "git"}, {"version": "c994c2ebdbbc391a42f177c8eb7882ebf3f142d8", "lessThan": "892f41e12c8689130d552a9eb2b77bafd26484ab", "status": "affected", "versionType": "git"}, {"version": "c994c2ebdbbc391a42f177c8eb7882ebf3f142d8", "lessThan": "8f45f089337d924db24397f55697cda0e6960516", "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/ocfs2/stack_user.c"], "versions": [{"version": "3.14", "status": "affected"}, {"version": "0", "lessThan": "3.14", "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": "5.15.195", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.156", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.112", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.53", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.17.3", "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": "3.14", "versionEndExcluding": "5.4.301"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.14", "versionEndExcluding": "5.10.246"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.14", "versionEndExcluding": "5.15.195"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.14", "versionEndExcluding": "6.1.156"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.14", "versionEndExcluding": "6.6.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.14", "versionEndExcluding": "6.12.53"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.14", "versionEndExcluding": "6.17.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.14", "versionEndExcluding": "6.18"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/283333079d96c84baa91f0c62b5e0cbec246b7a2"}, {"url": "https://git.kernel.org/stable/c/f992bc72f681c32a682d474a29c2135a64d4f4e5"}, {"url": "https://git.kernel.org/stable/c/827c8efa0d1afe817b90f3618afff552e88348d2"}, {"url": "https://git.kernel.org/stable/c/bfe011297ddd2d0cd64752978baaa0c04cd20573"}, {"url": "https://git.kernel.org/stable/c/7e76fe9dfadbc00364d7523d5a109e9d3e4a7db2"}, {"url": "https://git.kernel.org/stable/c/694d5b401036a614f8080085a9de6f86ff0742dc"}, {"url": "https://git.kernel.org/stable/c/892f41e12c8689130d552a9eb2b77bafd26484ab"}, {"url": "https://git.kernel.org/stable/c/8f45f089337d924db24397f55697cda0e6960516"}], "title": "ocfs2: fix double free in user_cluster_connect()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: fix double free in user_cluster_connect()\n\nuser_cluster_disconnect() frees \"conn->cc_private\" which is \"lc\" but then\nthe error handling frees \"lc\" a second time. Set \"lc\" to NULL on this\npath to avoid a double free."}], "id": "CVE-2025-40055", "lastModified": "2026-04-15T00:35:42.020", "metrics": {}, "published": "2025-10-28T12:15:39.780", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/283333079d96c84baa91f0c62b5e0cbec246b7a2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/694d5b401036a614f8080085a9de6f86ff0742dc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7e76fe9dfadbc00364d7523d5a109e9d3e4a7db2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/827c8efa0d1afe817b90f3618afff552e88348d2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/892f41e12c8689130d552a9eb2b77bafd26484ab"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8f45f089337d924db24397f55697cda0e6960516"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bfe011297ddd2d0cd64752978baaa0c04cd20573"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f992bc72f681c32a682d474a29c2135a64d4f4e5"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Deferred"}

{"bugzilla": {"description": "kernel: ocfs2: fix double free in user_cluster_connect()", "id": "2406745", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2406745"}, "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-2025-40055", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-10-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-40055\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-40055\nhttps://lore.kernel.org/linux-cve-announce/2025102815-CVE-2025-40055-8290@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-10-29T10:57:51.891321+00:00", "updated": "2025-10-29T10:57:51.891363+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}