CVE-2026-68270

Description

In the Linux kernel, the following vulnerability has been resolved: drm/sysfb: Avoid possible truncation with calculating visible size Calculating the visible size of the system framebuffer can result in truncation of the result. The calculation uses 32-bit arithmetics, which can overflow if the values for height and stride are large. Fix the issue by multiplying with mul_u32_u32().

References

• https://git.kernel.org/stable/c/154795885e8f0033c918c815aece543168bee670
• https://git.kernel.org/stable/c/9d58a811739a365cd693192f4b5344d736967a88
• https://git.kernel.org/stable/c/b771974988ec7ce077a7246fa0fa588c246fe581