Executive Summary

Informations
Name CVE-2025-21904 First vendor Publication 2025-04-01
Vendor Cve Last vendor Modification 2025-04-15

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 5.5
Base Score 5.5 Environmental Score 5.5
impact SubScore 3.6 Temporal Score 5.5
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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().

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-21904

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-476 NULL Pointer Dereference

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 8
Os 3716

Sources (Detail)

https://git.kernel.org/stable/c/29e0cd296c87240278e2f7ea4cf3f496b60c03af
https://git.kernel.org/stable/c/56cddf71cce3b15b078e937fadab29962b6f6643
https://git.kernel.org/stable/c/597c27e5f04cb50e56cc9aeda75d3e42b6b89c3e
https://git.kernel.org/stable/c/7b5fe58959822e6cfa884327cabba6be3b01883d
https://git.kernel.org/stable/c/8e4e08ca4cc634b337bb74bc9a70758fdeda0bcb
https://git.kernel.org/stable/c/90d302619ee7ce5ed0c69c29c290bdccfde66418
https://git.kernel.org/stable/c/990fff6980d0c1693d60a812f58dbf93eab0473f
https://git.kernel.org/stable/c/a466fd7e9fafd975949e5945e2f70c33a94b1a70
Source Url

Alert History

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Date Informations
2025-06-26 02:41:08
  • Multiple Updates
2025-06-25 12:38:12
  • Multiple Updates
2025-06-24 02:45:34
  • Multiple Updates
2025-05-27 02:52:52
  • First insertion