SB20260325101 - NULL Pointer Dereference in Linux kernel accel amdxdna driver
Published: March 25, 2026
Security Bulletin ID
SB20260325101
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-2026-23341)
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 driver when destroying a hardware context that has been suspended. A local user can send a specially crafted ioctl request to trigger access to a NULL mailbox channel pointer, leading to a system crash.
The attacker must have the ability to open and control AMD XDNA device contexts, which typically requires access to the device file and appropriate permissions.
Remediation
Install update from vendor's website.