{"id":"CVE-2025-40080","revision":"1be5d8a2407b4235b6c53f05f503bb91","records":[{"revision":"1be5d8a2407b4235b6c53f05f503bb91","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-40080","aliases":[],"title":"nbd: restrict sockets to TCP and UDP","description":"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.","state":0,"publishedAt":"2025-10-28T11:48:44.796+00:00","modifiedAt":"2026-10-15T01:08:55.82+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/block/nbd.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"cf1b2326b734896734c6e167e41766f9cee7686a\",\n                            \"lessThan\": \"c365e8f20f4201d873a70385bd919f0fb531e960\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"cf1b2326b734896734c6e167e41766f9cee7686a\",\n                            \"lessThan\": \"4f9e6ff6319dbcebea64b50af0304cf0ad7e97e7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"cf1b2326b734896734c6e167e41766f9cee7686a\",\n                            \"lessThan\": \"37ad11f20e164c23ce827dd455b42c0fdd29685c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"cf1b2326b734896734c6e167e41766f9cee7686a\",\n                            \"lessThan\": \"808e2335bc1cf2293b9e36ccc94c267c81509c71\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"cf1b2326b734896734c6e167e41766f9cee7686a\",\n                            \"lessThan\": \"9f7c02e031570e8291a63162c6c046dc15ff85b0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4df728651b8a99693c69962d8e5a5b9e5a3bbcc7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"083322455c67d278c56a66b73f1221f004ee600a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4fa1cbd587ef967812f9d9f6ce46ec1dead7502c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4.14.152\",\n                            \"lessThan\": \"4.15\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"4.19.82\",\n                            \"lessThan\": \"4.20\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.3.9\",\n                            \"lessThan\": \"5.4\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/block/nbd.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.4\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.4\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.156\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.112\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.53\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.17.3\",\n                            \"lessThanOrEqual\": \"6.17.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/c365e8f20f4201d873a70385bd919f0fb531e960","https://git.kernel.org/stable/c/4f9e6ff6319dbcebea64b50af0304cf0ad7e97e7","https://git.kernel.org/stable/c/37ad11f20e164c23ce827dd455b42c0fdd29685c","https://git.kernel.org/stable/c/808e2335bc1cf2293b9e36ccc94c267c81509c71","https://git.kernel.org/stable/c/9f7c02e031570e8291a63162c6c046dc15ff85b0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-40080","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-40080","identifiers":["CVE-2025-40080"]},"retained":false,"historicalAffected":[]}],"coverage":[]}