{"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"}}}}