CVEvulnerability

CVE-2025-21904

5.5 MEDIUM Published 2025-04-01 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2025-04-01
Last modified
2026-06-17
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-476

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().

Affected configurations

• linux linux kernel (>= 3.10 < 5.4.291) • linux linux kernel (>= 5.5 < 5.10.235) • linux linux kernel (>= 5.11 < 5.15.179) • linux linux kernel (>= 5.16 < 6.1.131) • linux linux kernel (>= 6.2 < 6.6.83) • linux linux kernel (>= 6.7 < 6.12.19) • linux linux kernel (>= 6.13 < 6.13.7) • linux linux kernel 6.14

Related

Weakness · CWE (1)

  • CWE-476 NULL Pointer Dereference weakness

References