CVE-2025-21904

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Source
https://cve.org/CVERecord?id=CVE-2025-21904
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21904.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-21904
Downstream
Related
Published
2025-04-01T15:40:45Z
Modified
2026-08-12T03:30:45Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
caif_virtio: fix wrong pointer check in cfv_probe()
Details

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().

Database specific 
{
    "cna_assigner":  "Linux",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21904.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0d2e1a2926b1839a4b74519e660739b2566c9386
Fixed
990fff6980d0c1693d60a812f58dbf93eab0473f
Fixed
7b5fe58959822e6cfa884327cabba6be3b01883d
Fixed
8e4e08ca4cc634b337bb74bc9a70758fdeda0bcb
Fixed
29e0cd296c87240278e2f7ea4cf3f496b60c03af
Fixed
90d302619ee7ce5ed0c69c29c290bdccfde66418
Fixed
56cddf71cce3b15b078e937fadab29962b6f6643
Fixed
597c27e5f04cb50e56cc9aeda75d3e42b6b89c3e
Fixed
a466fd7e9fafd975949e5945e2f70c33a94b1a70

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21904.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
3.10.0
Fixed
5.4.291
Type
ECOSYSTEM
Events
Introduced
5.5.0
Fixed
5.10.235
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.179
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.131
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.83
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.19
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.13.7

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21904.json"