CVE-2025-38618 (GCVE-0-2025-38618)
Vulnerability from cvelistv5
Published
2025-08-22 13:01
Modified
2025-08-28 14:44
Severity ?
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/32950b1907919be86a7a2697d6f93d57068b3865
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/44bd006d5c93f6a8f28b106cbae2428c5d0275b7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8f01093646b49f6330bb2d36761983fd829472b1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/aba0c94f61ec05315fa7815d21aefa4c87f6a9f4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c04a2c1ca25b9b23104124d3b2d349d934e302de
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cf86704798c1b9c46fa59dfc2d662f57d1394d79
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d1a5b1964cef42727668ac0d8532dae4f8c19386
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d73960f0cf03ef1dc9e96ec7a20e538accc26d87
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f138be5d7f301fddad4e65ec66dfc3ceebf79be3
Impacted products
Vendor Product Version
Linux Linux Version: d021c344051af91f42c5ba9fdedc176740cbd238
Version: d021c344051af91f42c5ba9fdedc176740cbd238
Version: d021c344051af91f42c5ba9fdedc176740cbd238
Version: d021c344051af91f42c5ba9fdedc176740cbd238
Version: d021c344051af91f42c5ba9fdedc176740cbd238
Version: d021c344051af91f42c5ba9fdedc176740cbd238
Version: d021c344051af91f42c5ba9fdedc176740cbd238
Version: d021c344051af91f42c5ba9fdedc176740cbd238
Version: d021c344051af91f42c5ba9fdedc176740cbd238
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   Linux Linux Version: 3.9
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{
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvsock: Do not allow binding to VMADDR_PORT_ANY\n\nIt is possible for a vsock to autobind to VMADDR_PORT_ANY. This can\ncause a use-after-free when a connection is made to the bound socket.\nThe socket returned by accept() also has port VMADDR_PORT_ANY but is not\non the list of unbound sockets. Binding it will result in an extra\nrefcount decrement similar to the one fixed in fcdd2242c023 (vsock: Keep\nthe binding until socket destruction).\n\nModify the check in __vsock_bind_connectible() to also prevent binding\nto VMADDR_PORT_ANY."
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        "shortName": "Linux"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38618",
    "datePublished": "2025-08-22T13:01:24.678Z",
    "dateReserved": "2025-04-16T04:51:24.029Z",
    "dateUpdated": "2025-08-28T14:44:15.728Z",
    "state": "PUBLISHED"
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  }
}


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