CVE-2026-68270

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().

Package Linux Kernel
Published 2026-08-10
Last modified 2026-08-17
Patch available
Yes

Affected versions

Linux kernel versions 6.16 and later are affected. Fixed in 6.18.42, 7.1.6, 7.2 and their respective stable series.

Affected from
≥ 6.16
Fixed in
✓ 6.18.42 6.18.x ✓ 7.1.6 7.1.x ✓ 7.2

References

3 total

Frequently asked questions

  • What is CVE-2026-68270?

    CVE-2026-68270 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.16 onward and has been patched in 6.18.42, 7.1.6 and 7.2. CVE-2026-68270 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • Is there a patch available for CVE-2026-68270?

    Yes. CVE-2026-68270 has been patched. Fixed versions include 6.18.42, 7.1.6 and 7.2. If you are running Linux kernel 6.16 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2026-68270 actively exploited?

    No. CVE-2026-68270 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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