drm/log: Fix out-of-bounds read on empty message length (CVE-2026-80741) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-80741

drm/log: Fix out-of-bounds read on empty message length

Answer in brief

CVE-2026-80741 records a Unknown severity vulnerability in drm/log: Fix out-of-bounds read on empty message length. 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 3, 2026Updated Sep 3, 2026Source checked Sep 3, 2026First seen by HOL Sep 3, 2026Material review Sep 3, 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	>=25e2c2a3eff55683bbe77b108db2a7e389246666 <16a2716910ecf7d31bf3c033ee7c506a0b00b2ee \|\| >=25e2c2a3eff55683bbe77b108db2a7e389246666 <16bcea56f4205314ec2aa04a7ec74e5261d253c7 \|\| >=25e2c2a3eff55683bbe77b108db2a7e389246666 <60baa179ed1333535f6e2da4133511db55278ee4	16a2716910ecf7d31bf3c033ee7c506a0b00b2ee, 16bcea56f4205314ec2aa04a7ec74e5261d253c7, 60baa179ed1333535f6e2da4133511db55278ee4
Linux/Linuxgeneric	6.14	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 16a2716910ecf7d31bf3c033ee7c506a0b00b2ee if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 3, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 3, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 3, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: drm/log: Fix out-of-bounds read on empty message length drm_log_draw_kmsg_record() accesses s[len - 1] to strip the trailing newline, but len is unsigned int. If len is 0, the subtraction wraps to UINT_MAX, causing an out-of-bounds read. Add an early return when len is 0.

Quoted source text, attributed separately from HOL analysis.