CVE-2025-21669 (GCVE-0-2025-21669)
Vulnerability from cvelistv5
Published
2025-01-31 11:25
Modified
2026-05-12 12:03
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: discard packets if the transport changes If the socket has been de-assigned or assigned to another transport, we must discard any packets received because they are not expected and would cause issues when we access vsk->transport. A possible scenario is described by Hyunwoo Kim in the attached link, where after a first connect() interrupted by a signal, and a second connect() failed, we can find `vsk->transport` at NULL, leading to a NULL pointer dereference.
References
Impacted products
Vendor Product Version
Linux Linux Version: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a
Version: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a
Version: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a
Version: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a
Version: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a
Version: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a
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