Description
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.
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | 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
- https://git.kernel.org/stable/c/32950b1907919be86a7a2697d6f93d57068b3865Patch
- https://git.kernel.org/stable/c/44bd006d5c93f6a8f28b106cbae2428c5d0275b7Patch
- https://git.kernel.org/stable/c/8f01093646b49f6330bb2d36761983fd829472b1Patch
- https://git.kernel.org/stable/c/aba0c94f61ec05315fa7815d21aefa4c87f6a9f4Patch
- https://git.kernel.org/stable/c/c04a2c1ca25b9b23104124d3b2d349d934e302dePatch
- https://git.kernel.org/stable/c/cf86704798c1b9c46fa59dfc2d662f57d1394d79Patch
- https://git.kernel.org/stable/c/d1a5b1964cef42727668ac0d8532dae4f8c19386Patch
- https://git.kernel.org/stable/c/d73960f0cf03ef1dc9e96ec7a20e538accc26d87Patch
- https://git.kernel.org/stable/c/f138be5d7f301fddad4e65ec66dfc3ceebf79be3Patch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlThird Party Advisory
Timeline
- Published
- Aug 22, 2025
- Last modified
- Jul 30, 2026
- NVD status
- Modified