CVE-2026-43398: drm/amdgpu: add upper bound check on user inputs in wait ioctl
Published May 8, 2026
·Updated
drm/amdgpu: add upper bound check on user inputs in wait ioctl
Affected Software
5 affected componentsFixes available
Linux Linux kernel (amdgpu)
Microsoft azl3 kernel 6.6.137.1-2
Linux Linux kernel>=6.16<6.18.19
Linux Linux kernel>=6.19<6.19.9
Linux Linux kernel=7.0-rc1
Remediation
Event History
May 8, 2026
CVE Published
via MITRE·02:21 PM
Data Sourced
via MITRE·02:21 PM
Description
Data Sourced
via NVD·03:16 PM
RemedyDescriptionSeverityAffected Software
May 9, 2026
Data Sourced
via Microsoft·08:03 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·08:03 AM
Description
Frequently Asked Questions
1
What is the severity of CVE-2026-43398?
CVE-2026-43398 has a medium severity rating of 5.5 based on the CVSS 3.1 scoring system.
2
How do I fix CVE-2026-43398?
The recommended fix for CVE-2026-43398 is to apply the available patch for the Linux kernel.
3
What software is affected by CVE-2026-43398?
CVE-2026-43398 affects the Linux kernel, specifically the amdgpu component and also impacts Microsoft azl3 kernel version 6.6.137.1-2.
4
What does CVE-2026-43398 vulnerability impact?
CVE-2026-43398 can lead to an Out Of Memory (OOM) condition due to huge input values in the amdgpu_userq_wait_ioctl function.
5
When was CVE-2026-43398 published?
CVE-2026-43398 was published on May 8, 2026.