CVE-2026-31460
Received Received - Intake
Null Pointer Dereference in Linux AMD DRM Display Driver

Publication date: 2026-04-22

Last updated on: 2026-04-22

Assigner: kernel.org

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)
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Meta Information
Published
2026-04-22
Last Modified
2026-04-22
Generated
2026-05-07
AI Q&A
2026-04-22
EPSS Evaluated
2026-05-05
NVD
CVE-2026-31460
EUVD
EUVD-2026-24799
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability exists in the Linux kernel within the drm/amd/display component. It involves the handling of extended backlight capabilities (ext_caps) during backlight (BL) setup. Specifically, LVDS connectors do not have extended backlight capabilities, so the code must check if the pointer to ext_caps is valid before accessing it. Failure to do this check could lead to invalid memory access.


How can this vulnerability impact me? :

If the pointer to extended backlight capabilities is accessed without validation, it could cause the system to behave unexpectedly, potentially leading to crashes or instability in the display subsystem of the Linux kernel. This could affect system reliability and availability.


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