CVE-2025-21904

MEDIUM

Linux Kernel 3.10-6.13.7 - NULL Pointer Dereference in caif_virtio cfv_probe

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: caif_virtio: fix wrong pointer check in cfv_probe() del_vqs() frees virtqueues, therefore cfv->vq_tx pointer should be checked for NULL before calling it, not cfv->vdev. Also the current implementation is redundant because the pointer cfv->vdev is dereferenced before it is checked for NULL. Fix this by checking cfv->vq_tx for NULL instead of cfv->vdev before calling del_vqs().

References (10)

Core 10
Core References

Scores

CVSS v3 5.5
EPSS 0.0019
EPSS Percentile 8.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-476
Status published
Products (27)
linux/Kernel 3.10.0 - 5.4.291linux
linux/Kernel 5.11.0 - 5.15.179linux
linux/Kernel 5.16.0 - 6.1.131linux
linux/Kernel 5.5.0 - 5.10.235linux
linux/Kernel 6.13.0 - 6.13.7linux
linux/Kernel 6.2.0 - 6.6.83linux
linux/Kernel 6.7.0 - 6.12.19linux
Linux/Linux < 3.10
Linux/Linux 0d2e1a2926b1839a4b74519e660739b2566c9386 - 29e0cd296c87240278e2f7ea4cf3f496b60c03af
Linux/Linux 0d2e1a2926b1839a4b74519e660739b2566c9386 - 56cddf71cce3b15b078e937fadab29962b6f6643
... and 17 more
Published Apr 01, 2025
Tracked Since Feb 18, 2026