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)

A flaw was found in the Linux kernel's `drm/amd` graphics driver. When a GPU initialization fails due to an unsupported hardware block, certain IP blocks may have a null version pointer. During the device cleanup process, the `amdgpu_device_set_pg_state` and `amdgpu_device_set_cg_state` functions attempt to access these null pointers without proper checks. This can lead to a kernel null pointer dereference, potentially causing a system crash and resulting in a denial of service.

Red Hat Enterprise Linux 10 Not affected kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Not affected kernel Red Hat Enterprise Linux 8 Not affected kernel-rt Red Hat Enterprise Linux 9 Not affected kernel Red Hat Enterprise Linux 9 Not affected kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-43369 https://nvd.nist.gov/vuln/detail/CVE-2026-43369 https://lore.kernel.org/linux-cve-announce/2026050829-CVE-2026-43369-60b9@gregkh/T