Vulnerability 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.
References
- https://git.kernel.org/stable/c/50ca4dbbaf3eb6deb74daca360b4dabc739a6fa6
- https://git.kernel.org/stable/c/a7d172b27aa3e1ad56e39949bfe4e5caa25fb20b
- https://git.kernel.org/stable/c/f4f2bba28df9b9aaa00262a462139dbbcdc38d9f
FAQ
What is CVE-2026-80740?
CVE-2026-80740 is a documented vulnerability. 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 dim...
How severe is CVE-2026-80740?
CVSS scoring is not yet available for CVE-2026-80740. Check NVD for updates.
Is there a patch for CVE-2026-80740?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.