CVE-2026-43398

MediumCVSS 5.5/10Last modified Nov 11, 2026

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)

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected software

VendorProductVersions
LinuxLinux>= a292fdecd72834b3bec380baa5db1e69e7f70679, < b1d10508da559da2e0ca9cca6505094a7df948e1; >= a292fdecd72834b3bec380baa5db1e69e7f70679, < 3cd93bc695b3456f26f5ed52753d9071da26202a; >= a292fdecd72834b3bec380baa5db1e69e7f70679, < 64ac7c09fc44985ec9bb6a9db740899fa40ca613
LinuxLinux6.16

References

Timeline

Published
May 8, 2026
Last modified
Nov 11, 2026
NVD status
Analyzed

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CVE-2026-43398: Medium severity, CVSS 5.5 | Vulnix