PT-2026-39030 · Linux · Linux Kernel

Published 2026-05-08 · Updated 2026-05-15 · CVE-2026-43369

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A NULL pointer dereference occurs during GPU device cleanup when initialization fails due to an unsupported hardware block. In this scenario, IP blocks may have a NULL version pointer. The functions amdgpu device set pg state() and amdgpu device set cg state() iterate over all IP blocks and access adev->ip blocks[i].version without performing NULL checks, which leads to a kernel crash.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2026-43369

Affected Products

Linux Kernel

References · 12

• https://git.kernel.org/stable/c/43025c941aced9a9009f9ff20eea4eb78c61deb8 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-43369 · Vendor Advisory
• https://git.kernel.org/stable/c/767cd24d3c4ae847688877def4891943f6611ecd · Patch
• https://git.kernel.org/stable/c/062ea905fff7756b2e87143ffccaece5cdb44267 · Patch
• https://cve.org/CVERecord?id=CVE-2026-43369 · Security Note
• https://ubuntu.com/security/CVE-2026-43369 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-43369 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-43369 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-43369 · Security Note
• https://git.kernel.org/linus/062ea905fff7756b2e87143ffccaece5cdb44267 · Note
• https://twitter.com/CVEnew/status/2052811002102636850 · Twitter Post
• https://twitter.com/hetmehtaa/status/2055151398283837677 · Twitter Post