CVE-2026-80740: Linux

Описание

Оригинално описание

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.

Засегнати продукти

• Linux Linux: 8a4b913df427b8f900bcc7849cc15a7b81628d57 преди a7d172b27aa3e1ad56e39949bfe4e5caa25fb20b; 8a4b913df427b8f900bcc7849cc15a7b81628d57 преди 50ca4dbbaf3eb6deb74daca360b4dabc739a6fa6; 8a4b913df427b8f900bcc7849cc15a7b81628d57 преди f4f2bba28df9b9aaa00262a462139dbbcdc38d9f
• Linux Linux: 6.14; преди 6.14; 6.18.46 до 6.18.*; 7.1.10 до 7.1.*; от 7.2 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-80740
• https://nvd.nist.gov/vuln/detail/CVE-2026-80740
• https://git.kernel.org/stable/c/a7d172b27aa3e1ad56e39949bfe4e5caa25fb20b
• https://git.kernel.org/stable/c/50ca4dbbaf3eb6deb74daca360b4dabc739a6fa6
• https://git.kernel.org/stable/c/f4f2bba28df9b9aaa00262a462139dbbcdc38d9f