CVE-2026-46191: Linux Kernel

High severity, CVSS 7.1. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: fbcon: Avoid OOB font access if console rotation fails Clear the font buffer if the reallocation during console rotation fails in fbcon_rotate_font(). The putcs implementations for the rotated buffer will return early in this case. See [1] for an example. Currently, fbcon_rotate_font() keeps the old buffer, which is too small for the rotated font. Printing to the rotated console with a high-enough character code will overflow the font buffer. v2: - fix typos in commit message

Affected products

• Linux Linux Kernel: from 2.6.15, before 6.6.140 (fixed in 6.6.140); from 6.7, before 6.12.90 (fixed in 6.12.90); from 6.13, before 6.18.32 (fixed in 6.18.32); from 6.19, before 7.0.7 (fixed in 7.0.7)

Published 2026-05-28. Last modified 2026-06-19.