CVE-2026-68270: drm/sysfb: Avoid possible truncation with calculating visible size
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 mulu32u32().
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-68270?
CVE-2026-68270 has a risk rating of 12, indicating a high severity vulnerability.
How do I fix CVE-2026-68270?
To address CVE-2026-68270, update your Linux kernel to the latest version that contains the relevant patch.
What systems are affected by CVE-2026-68270?
CVE-2026-68270 affects systems running specific versions of the Linux kernel that utilize drm/sysfb for framebuffer management.
What are the potential impacts of CVE-2026-68270?
The vulnerability could lead to a truncation issue in the calculation of the system framebuffer's visible size, potentially causing system instability.
When was CVE-2026-68270 published?
CVE-2026-68270 was published on August 10, 2026.