#VU124524 NULL Pointer Dereference in Linux kernel - CVE-2026-23328
Published: March 25, 2026
Vulnerability identifier: #VU124524
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-23328
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
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 security update from vendor's repository.