PT-2025-14307 · Linux+10 · Linux Kernel+10
Published
2025-04-01
·
Updated
2026-04-20
·
CVE-2025-21926
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
A vulnerability in the Linux kernel has been resolved, related to the
udp gso segment function. The issue occurs when the socket reference is not properly removed after the skb destructor is removed, potentially leading to a kernel bug when the original skb is later orphaned. This can happen in a sequence of events involving OpenVSwitch, specifically when an OVS ACTION ATTR USERSPACE action precedes an OVS ACTION ATTR OUTPUT action. The vulnerability is fixed by removing the reference to the socket in udp gso segment.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
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Weakness Enumeration
Related Identifiers
Affected Products
Almalinux
Astra Linux
Debian
Linuxmint
Linux Kernel
Openvswitch
Red Hat
Red Os
Rocky Linux
Suse
Ubuntu