NULL Pointer Dereference in Linux kernel - CVE-2026-23341
Published: March 25, 2026
Vulnerability identifier: #VU124498
CSH Severity: Low
CVSS v4.0: 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-2026-23341
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability 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 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.
How to mitigate CVE-2026-23341
Install security update from vendor's repository.