SB20260325133 - NULL Pointer Dereference in Linux kernel accel amdxdna driver
Published: March 25, 2026
Security Bulletin ID
SB20260325133
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL Pointer Dereference (CVE-ID: CVE-2026-23328)
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a NULL pointer dereference in the accel/amdxdna component when handling management channel operations. A local user can trigger improper handling of firmware error responses to cause a denial of service.
The issue arises when mgmt_chann is set to NULL due to an unexpected firmware error, which is later dereferenced during hardware stop operations.
Remediation
Install update from vendor's website.