CVE-2026-80740

Unknown

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.

SeverityUnknown
CVSS—
Exploit probability—
ProductLinux
PublishedSep 3, 2026
First seenSep 3, 2026

How to fix

Update
  • Linux Linuxa7d172b27aa3e1ad56e39949bfe4e5caa25fb20b, 50ca4dbbaf3eb6deb74daca360b4dabc739a6fa6, f4f2bba28df9b9aaa00262a462139dbbcdc38d9f or later

Affected products

ProductAffected versionsFixed in
Linux Linux8a4b913df427b8f900bcc7849cc15a7b81628d57 ≤ v < a7d172b27aa3e1ad56e39949bfe4e5caa25fb20b, 8a4b913df427b8f900bcc7849cc15a7b81628d57 ≤ v < 50ca4dbbaf3eb6deb74daca360b4dabc739a6fa6, 8a4b913df427b8f900bcc7849cc15a7b81628d57 ≤ v < f4f2bba28df9b9aaa00262a462139dbbcdc38d9f, 6.14a7d172b27aa3e1ad56e39949bfe4e5caa25fb20b, 50ca4dbbaf3eb6deb74daca360b4dabc739a6fa6, f4f2bba28df9b9aaa00262a462139dbbcdc38d9f

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CVE-2026-80740 · Linux · Dark Radar