Description

In the Linux kernel, the following vulnerability has been resolved: vsock: prevent null-ptr-deref in vsock_*[has_data|has_space] Recent reports have shown how we sometimes call vsock_*_has_data() when a vsock socket has been de-assigned from a transport (see attached links), but we shouldn't. Previous commits should have solved the real problems, but we may have more in the future, so to avoid null-ptr-deref, we can return 0 (no space, no data available) but with a warning. This way the code should continue to run in a nearly consistent state and have a warning that allows us to debug future problems.

INFO

Published Date :

2025-01-31T11:25:31.138Z

Last Modified :

2025-11-03T20:58:44.611Z

Source :

Linux
AFFECTED PRODUCTS

The following products are affected by CVE-2025-21666 vulnerability.

Vendors Products
Linux
  • Linux Kernel
Redhat
  • Enterprise Linux

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact