PT-2025-4350 · Linux+8 · Linux Kernel+8
Hyunwoo Kim
+1
·
Published
2025-01-10
·
Updated
2025-10-22
·
CVE-2025-21669
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to a NULL pointer dereference in the Linux kernel's vsock/virtio module. This can occur when the socket has been de-assigned or assigned to another transport, and packets are received that are not expected, causing issues when accessing
vsk->transport. A possible scenario involves a first connect() interrupted by a signal, and a second connect() failed, leading to vsk->transport being NULL.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Hat
Red Os
Suse
Ubuntu