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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2025-21669 Detail

Description

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/18a7fc371d1dbf8deff16c2dd9292bcc73f43040 kernel.org Patch 
https://git.kernel.org/stable/c/2cb7c756f605ec02ffe562fb26828e4bcc5fdfc1 kernel.org Patch 
https://git.kernel.org/stable/c/6486915fa661584d70e8e7e4068c6c075c67dd6d kernel.org Patch 
https://git.kernel.org/stable/c/677579b641af109613564460a4e3bdcb16850b61 kernel.org Patch 
https://git.kernel.org/stable/c/88244163bc7e7b0ce9dd7bf4c8a563b41525c3ee kernel.org Patch 
https://git.kernel.org/stable/c/d88b249e14bd0ee1e46bbe4f456e22e01b8c68de kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-476 NULL Pointer Dereference cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-21669
NVD Published Date:
01/31/2025
NVD Last Modified:
02/04/2025
Source:
kernel.org