drm/log: Fix infinite loop when scale is too large for display (CVE-2026-80740) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-80740

drm/log: Fix infinite loop when scale is too large for display

Answer in brief

CVE-2026-80740 records a Unknown severity vulnerability in drm/log: Fix infinite loop when scale is too large for display. 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	>=8a4b913df427b8f900bcc7849cc15a7b81628d57 <a7d172b27aa3e1ad56e39949bfe4e5caa25fb20b \|\| >=8a4b913df427b8f900bcc7849cc15a7b81628d57 <50ca4dbbaf3eb6deb74daca360b4dabc739a6fa6 \|\| >=8a4b913df427b8f900bcc7849cc15a7b81628d57 <f4f2bba28df9b9aaa00262a462139dbbcdc38d9f	a7d172b27aa3e1ad56e39949bfe4e5caa25fb20b, 50ca4dbbaf3eb6deb74daca360b4dabc739a6fa6, f4f2bba28df9b9aaa00262a462139dbbcdc38d9f
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 a7d172b27aa3e1ad56e39949bfe4e5caa25fb20b 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 infinite loop when scale is too large for display When scale is large enough that scaled_font exceeds the display dimensions, rows or columns become 0. A columns value of 0 causes an infinite loop in drm_log_draw_kmsg_record() because the loop never decrements len. Check for zero rows/columns in drm_log_setup_modeset() and return an error, cleaning up the already allocated buffer to avoid a leak.

Quoted source text, attributed separately from HOL analysis.