drm/amd/display: Fix dangling pointer in plane reset function (CVE-2026-93176) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-93176

drm/amd/display: Fix dangling pointer in plane reset function

Answer in brief

CVE-2026-93176 records a Unknown severity vulnerability in drm/amd/display: Fix dangling pointer in plane reset function. 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 Sep 17, 2026Updated Sep 17, 2026Source checked Sep 17, 2026First seen by HOL Sep 17, 2026Material review Sep 17, 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	>=5d945cbcd4b16a29d6470a80dfb19738f9a4319f <80c0f51aced43d6eaf72f95a2833b0a77cf7880d \|\| >=5d945cbcd4b16a29d6470a80dfb19738f9a4319f <98cad4bd1443975d972f4c7f705980da03722a22	80c0f51aced43d6eaf72f95a2833b0a77cf7880d, 98cad4bd1443975d972f4c7f705980da03722a22
Linux/Linuxgeneric	6.0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 80c0f51aced43d6eaf72f95a2833b0a77cf7880d if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 17, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix dangling pointer in plane reset function amdgpu_dm_plane_drm_plane_reset() frees the old state before allocating a new one. If kzalloc() fails, the function returns without updating the state pointer, leaving a dangling pointer to already freed memory. Fix this by allocating the new state first. On allocation failure, the old state remains untouched and the function safely returns. Found by Linux Verification Center (linuxtesting.org) with SVACE. [adjust for movement around current amd-staging-drm-next]

Quoted source text, attributed separately from HOL analysis.