drm/amdkfd: Check bounds on allocate_doorbell

Answer in brief

CVE-2026-97495 records a Unknown severity vulnerability in drm/amdkfd: Check bounds on allocate_doorbell. The current sources do not mark it as known exploited. The current feed maps 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 24, 2026Updated Sep 24, 2026Source checked Sep 25, 2026First seen by HOL Sep 25, 2026Material review Sep 24, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
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). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e0cecd04a4fc4c75e375b91cf53eab5ba2e4ab7f \|\| >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c2c89118c27cbd3adace62c5df19d15b0e96ade1 \|\| >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1f087bb8cf9e8797633da35c85435e557ef74d06 \|\| >=0 <6.12.111 \|\| >=0 <6.18.53	e0cecd04a4fc4c75e375b91cf53eab5ba2e4ab7f, c2c89118c27cbd3adace62c5df19d15b0e96ade1, 1f087bb8cf9e8797633da35c85435e557ef74d06, 6.12.111, 6.18.53

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux.
Review the reported fix. Update Linux/Linux to e0cecd04a4fc4c75e375b91cf53eab5ba2e4ab7f if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 25, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Check bounds on allocate_doorbell allocated_doorbell has an option to set the doorbell id to a specific value (used by CRIU). This value was not bounds checked. Check to confirm it's less than KFD_MAX_NUM_OF_QUEUES_PER_PROCESS.

Quoted source text, attributed separately from HOL analysis.