CVE-2026-43398 Details
Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: add upper bound check on user inputs in wait ioctl Huge input values in amdgpu_userq_wait_ioctl can lead to a OOM and could be exploited. So check these input value against AMDGPU_USERQ_MAX_HANDLES which is big enough value for genuine use cases and could potentially avoid OOM. v2: squash in Srini's fix (cherry picked from commit fcec012c664247531aed3e662f4280ff804d1476)
A vulnerability in the Linux kernel's AMDGPU driver allows for out-of-memory (OOM) conditions due to insufficient input validation in the user queue wait ioctl. This issue can be exploited by sending huge input values, leading to potential OOM situations. The vulnerability affects several versions of the Linux kernel.
Users can update to the latest version of the Linux kernel where this vulnerability has been addressed. Instructions for downloading the patched version are available on the official Linux kernel website.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/3cd93bc695b3456f26f5ed52753d9071da26202a | kernel.org | Patch |
| https://git.kernel.org/stable/c/64ac7c09fc44985ec9bb6a9db740899fa40ca613 | kernel.org | Patch |
| https://git.kernel.org/stable/c/b1d10508da559da2e0ca9cca6505094a7df948e1 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.16, < 6.18.19 >= 6.19, < 6.19.9 7.0 rc1 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| May 21, 2026 | Initial Analysis | [email protected] |
| May 8, 2026 | New CVE Received | kernel.org |