{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-40080", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T07:20:57.160Z", "datePublished": "2025-10-28T11:48:44.796Z", "dateUpdated": "2026-05-11T21:42:07.329Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:42:07.329Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnbd: restrict sockets to TCP and UDP\n\nRecently, syzbot started to abuse NBD with all kinds of sockets.\n\nCommit cf1b2326b734 (\"nbd: verify socket is supported during setup\")\nmade sure the socket supported a shutdown() method.\n\nExplicitely accept TCP and UNIX stream sockets."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/block/nbd.c"], "versions": [{"version": "cf1b2326b734896734c6e167e41766f9cee7686a", "lessThan": "c365e8f20f4201d873a70385bd919f0fb531e960", "status": "affected", "versionType": "git"}, {"version": "cf1b2326b734896734c6e167e41766f9cee7686a", "lessThan": "4f9e6ff6319dbcebea64b50af0304cf0ad7e97e7", "status": "affected", "versionType": "git"}, {"version": "cf1b2326b734896734c6e167e41766f9cee7686a", "lessThan": "37ad11f20e164c23ce827dd455b42c0fdd29685c", "status": "affected", "versionType": "git"}, {"version": "cf1b2326b734896734c6e167e41766f9cee7686a", "lessThan": "808e2335bc1cf2293b9e36ccc94c267c81509c71", "status": "affected", "versionType": "git"}, {"version": "cf1b2326b734896734c6e167e41766f9cee7686a", "lessThan": "9f7c02e031570e8291a63162c6c046dc15ff85b0", "status": "affected", "versionType": "git"}, {"version": "4df728651b8a99693c69962d8e5a5b9e5a3bbcc7", "status": "affected", "versionType": "git"}, {"version": "083322455c67d278c56a66b73f1221f004ee600a", "status": "affected", "versionType": "git"}, {"version": "4fa1cbd587ef967812f9d9f6ce46ec1dead7502c", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/block/nbd.c"], "versions": [{"version": "5.4", "status": "affected"}, {"version": "0", "lessThan": "5.4", "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": "5.4", "versionEndExcluding": "6.1.156"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "6.6.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "6.12.53"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "6.17.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "6.18"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14.152"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19.82"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3.9"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c365e8f20f4201d873a70385bd919f0fb531e960"}, {"url": "https://git.kernel.org/stable/c/4f9e6ff6319dbcebea64b50af0304cf0ad7e97e7"}, {"url": "https://git.kernel.org/stable/c/37ad11f20e164c23ce827dd455b42c0fdd29685c"}, {"url": "https://git.kernel.org/stable/c/808e2335bc1cf2293b9e36ccc94c267c81509c71"}, {"url": "https://git.kernel.org/stable/c/9f7c02e031570e8291a63162c6c046dc15ff85b0"}], "title": "nbd: restrict sockets to TCP and UDP", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnbd: restrict sockets to TCP and UDP\n\nRecently, syzbot started to abuse NBD with all kinds of sockets.\n\nCommit cf1b2326b734 (\"nbd: verify socket is supported during setup\")\nmade sure the socket supported a shutdown() method.\n\nExplicitely accept TCP and UNIX stream sockets."}], "id": "CVE-2025-40080", "lastModified": "2026-04-15T00:35:42.020", "metrics": {}, "published": "2025-10-28T12:15:42.587", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/37ad11f20e164c23ce827dd455b42c0fdd29685c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4f9e6ff6319dbcebea64b50af0304cf0ad7e97e7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/808e2335bc1cf2293b9e36ccc94c267c81509c71"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9f7c02e031570e8291a63162c6c046dc15ff85b0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c365e8f20f4201d873a70385bd919f0fb531e960"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Deferred"}

{"bugzilla": {"description": "kernel: nbd: restrict sockets to TCP and UDP", "id": "2406775", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2406775"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2025-40080", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Under investigation", "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "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-2025-40080\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-40080\nhttps://lore.kernel.org/linux-cve-announce/2025102820-CVE-2025-40080-bda1@gregkh/T"], "threat_severity": "Important"}

{"created": "2025-10-29T10:58:17.486265+00:00", "updated": "2025-10-29T10:58:17.486289+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}