drm/amd/powerplay: fix VoltageObjectInfo zero-stride loop and OOB read (CVE-2026-93179) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-93179

drm/amd/powerplay: fix VoltageObjectInfo zero-stride loop and OOB read

Answer in brief

CVE-2026-93179 records a Unknown severity vulnerability in drm/amd/powerplay: fix VoltageObjectInfo zero-stride loop and OOB read. 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	>=c82baa28184356a75c0157129f88af42b2e7b695 <83c680de6d41d627c077dedb24f89d9e5be0e2a2 \|\| >=c82baa28184356a75c0157129f88af42b2e7b695 <5d3cc8e388464f485d0944b87b8f9426e637d082	83c680de6d41d627c077dedb24f89d9e5be0e2a2, 5d3cc8e388464f485d0944b87b8f9426e637d082
Linux/Linuxgeneric	4.5	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 83c680de6d41d627c077dedb24f89d9e5be0e2a2 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/powerplay: fix VoltageObjectInfo zero-stride loop and OOB read Reject voltage objects whose usSize is smaller than the header or would advance the cursor past the table end, preventing an infinite loop or heap OOB read when the VBIOS supplies a malformed VoltageObjectInfo table.

Quoted source text, attributed separately from HOL analysis.