CVE-2026-31460 drm/amd/display: check if ext_caps is valid in BL setup

What is CVE-2026-31460?

CVE-2026-31460 is a medium-severity vulnerability in Linux kernel, published on 22 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: check if ext_caps is valid in BL setup

LVDS connectors don't have extended backlight caps so check if the pointer is valid before accessing it.

(cherry picked from commit 3f797396d7f4eb9bb6eded184bbc6f033628a6f6)

Which versions are affected by CVE-2026-31460?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-31460?

Apply the vendor's patch.

Is CVE-2026-31460 being exploited?

There is no known exploitation of CVE-2026-31460 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2026-31460, GHSA-hvcr-xg33-f4f5, UBUNTU-CVE-2026-31460.