CVE-2025-38618
vsock: Do not allow binding to VMADDR_PORT_ANY
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: vsock: Do not allow binding to VMADDR_PORT_ANY It is possible for a vsock to autobind to VMADDR_PORT_ANY. This can cause a use-after-free when a connection is made to the bound socket. The socket returned by accept() also has port VMADDR_PORT_ANY but is not on the list of unbound sockets. Binding it will result in an extra refcount decrement similar to the one fixed in fcdd2242c023 (vsock: Keep the binding until socket destruction). Modify the check in __vsock_bind_connectible() to also prevent binding to VMADDR_PORT_ANY.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 22, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
d021c344051af91f42c5ba9fdedc176740cbd238 < c04a2c1ca25b9b23104124d3b2d349d934e302de d021c344051af91f42c5ba9fdedc176740cbd238 < d1a5b1964cef42727668ac0d8532dae4f8c19386 d021c344051af91f42c5ba9fdedc176740cbd238 < cf86704798c1b9c46fa59dfc2d662f57d1394d79 d021c344051af91f42c5ba9fdedc176740cbd238 < f138be5d7f301fddad4e65ec66dfc3ceebf79be3 d021c344051af91f42c5ba9fdedc176740cbd238 < 44bd006d5c93f6a8f28b106cbae2428c5d0275b7 d021c344051af91f42c5ba9fdedc176740cbd238 < 32950b1907919be86a7a2697d6f93d57068b3865 d021c344051af91f42c5ba9fdedc176740cbd238 < 8f01093646b49f6330bb2d36761983fd829472b1 d021c344051af91f42c5ba9fdedc176740cbd238 < d73960f0cf03ef1dc9e96ec7a20e538accc26d87 d021c344051af91f42c5ba9fdedc176740cbd238 < aba0c94f61ec05315fa7815d21aefa4c87f6a9f4
Linux / Linux
3.9
References
git.kernel.org: https://git.kernel.org/stable/c/c04a2c1ca25b9b23104124d3b2d349d934e302de git.kernel.org: https://git.kernel.org/stable/c/d1a5b1964cef42727668ac0d8532dae4f8c19386 git.kernel.org: https://git.kernel.org/stable/c/cf86704798c1b9c46fa59dfc2d662f57d1394d79 git.kernel.org: https://git.kernel.org/stable/c/f138be5d7f301fddad4e65ec66dfc3ceebf79be3 git.kernel.org: https://git.kernel.org/stable/c/44bd006d5c93f6a8f28b106cbae2428c5d0275b7 git.kernel.org: https://git.kernel.org/stable/c/32950b1907919be86a7a2697d6f93d57068b3865 git.kernel.org: https://git.kernel.org/stable/c/8f01093646b49f6330bb2d36761983fd829472b1 git.kernel.org: https://git.kernel.org/stable/c/d73960f0cf03ef1dc9e96ec7a20e538accc26d87 git.kernel.org: https://git.kernel.org/stable/c/aba0c94f61ec05315fa7815d21aefa4c87f6a9f4 lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html