CVE-2026-43369 drm/amd: Fix NULL pointer dereference in device cleanup

What is CVE-2026-43369?

CVE-2026-43369 is a medium-severity vulnerability in Linux kernel, published on 8 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

drm/amd: Fix NULL pointer dereference in device cleanup

When GPU initialization fails due to an unsupported HW block IP blocks may have a NULL version pointer. During cleanup in amdgpu_device_fini_hw, the code calls amdgpu_device_set_pg_state and amdgpu_device_set_cg_state which iterate over all IP blocks and access adev->ip_blocks[i].version without NULL checks, leading to a kernel NULL pointer dereference.

Add NULL checks for adev->ip_blocks[i].version in both amdgpu_device_set_cg_state and amdgpu_device_set_pg_state to prevent dereferencing NULL pointers during GPU teardown when initialization has failed.

(cherry picked from commit b7ac77468cda92eecae560b05f62f997a12fe2f2)

Weakness: CWE-476

Which versions are affected by CVE-2026-43369?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-43369?

Apply the vendor's patch.

Is CVE-2026-43369 being exploited?

There is no known exploitation of CVE-2026-43369 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2026-43369, DEBIAN-CVE-2026-43369, GHSA-9m9h-79g2-4xrr, UBUNTU-CVE-2026-43369.