CVE-2026-80740

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

N/A
Published: September 3, 2026 at 08:26 AM UTC
Updated: September 3, 2026 at 01:34 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.14 ≤ v < 6.18.466.14 ≤ v < 7.1.106.14 ≤ v < 7.26.148a4b913df427b8f900bcc7849cc15a7b81628d57
Vendor states this is fixed in 50ca4dbbaf3eb6deb74daca360b4dabc739a6fa6 (fixed)
Vendor states this is fixed in a7d172b27aa3e1ad56e39949bfe4e5caa25fb20b (fixed)
Vendor states this is fixed in f4f2bba28df9b9aaa00262a462139dbbcdc38d9f (fixed)
Vendor states this is fixed in 6.14 (unaffected)
Vendor states this is fixed in 6.18.46 (unaffected)
Vendor states this is fixed in 7.1.10 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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