Unknown severity · Source severity not reportedCVE-2026-43399

drm/amdgpu/userq: Fix reference leak in amdgpu_userq_wait_ioctlCVE-2026-43399

Answer in brief

CVE-2026-43399 records a Unknown severity vulnerability in drm/amdgpu/userq: Fix reference leak in amdgpu_userq_wait_ioctl. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published May 8, 2026Updated Nov 6, 2026Source checked Nov 6, 2026First seen by HOL Nov 6, 2026Material review Nov 6, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=a292fdecd72834b3bec380baa5db1e69e7f70679 <762f47e2b824383d5be65eee2c40a1269b7d50c8 \|\| >=a292fdecd72834b3bec380baa5db1e69e7f70679 <5409247d41f372bec5b141ef599f2d9f5e81b746 \|\| >=a292fdecd72834b3bec380baa5db1e69e7f70679 <49abfa812617a7f2d0132c70d23ac98b389c6ec1	762f47e2b824383d5be65eee2c40a1269b7d50c8, 5409247d41f372bec5b141ef599f2d9f5e81b746, 49abfa812617a7f2d0132c70d23ac98b389c6ec1
Linux/Linuxgeneric	6.16	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 762f47e2b824383d5be65eee2c40a1269b7d50c8 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
May 8, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Nov 6, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Nov 6, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/userq: Fix reference leak in amdgpu_userq_wait_ioctl Drop reference to syncobj and timeline fence when aborting the ioctl due output array being too small. (cherry picked from commit 68951e9c3e6bb22396bc42ef2359751c8315dd27)

Quoted source text, attributed separately from HOL analysis.