CVE-2025-40080
nbd: restrict sockets to TCP and UDP
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: nbd: restrict sockets to TCP and UDP Recently, syzbot started to abuse NBD with all kinds of sockets. Commit cf1b2326b734 ("nbd: verify socket is supported during setup") made sure the socket supported a shutdown() method. Explicitely accept TCP and UNIX stream sockets.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 28, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
cf1b2326b734896734c6e167e41766f9cee7686a < c365e8f20f4201d873a70385bd919f0fb531e960 cf1b2326b734896734c6e167e41766f9cee7686a < 4f9e6ff6319dbcebea64b50af0304cf0ad7e97e7 cf1b2326b734896734c6e167e41766f9cee7686a < 37ad11f20e164c23ce827dd455b42c0fdd29685c cf1b2326b734896734c6e167e41766f9cee7686a < 808e2335bc1cf2293b9e36ccc94c267c81509c71 cf1b2326b734896734c6e167e41766f9cee7686a < 9f7c02e031570e8291a63162c6c046dc15ff85b0 4df728651b8a99693c69962d8e5a5b9e5a3bbcc7 083322455c67d278c56a66b73f1221f004ee600a 4fa1cbd587ef967812f9d9f6ce46ec1dead7502c
Linux / Linux
5.4
References
git.kernel.org: https://git.kernel.org/stable/c/c365e8f20f4201d873a70385bd919f0fb531e960 git.kernel.org: https://git.kernel.org/stable/c/4f9e6ff6319dbcebea64b50af0304cf0ad7e97e7 git.kernel.org: https://git.kernel.org/stable/c/37ad11f20e164c23ce827dd455b42c0fdd29685c git.kernel.org: https://git.kernel.org/stable/c/808e2335bc1cf2293b9e36ccc94c267c81509c71 git.kernel.org: https://git.kernel.org/stable/c/9f7c02e031570e8291a63162c6c046dc15ff85b0