CVE-2026-43243
Analyzed Analyzed - Analysis Complete
AMD Display Driver Signal Type Validation Flaw

Publication date: 2026-05-06

Last updated on: 2026-05-11

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Add signal type check for dcn401 get_phyd32clk_src Trying to access link enc on a dpia link will cause a crash otherwise
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Meta Information
Published
2026-05-06
Last Modified
2026-05-11
Generated
2026-06-16
AI Q&A
2026-05-06
EPSS Evaluated
2026-06-15
NVD
CVE-2026-43243
EUVD
EUVD-2026-27802
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 6.13 (inc) to 6.18.16 (exc)
linux linux_kernel From 6.19 (inc) to 6.19.6 (exc)
linux linux_kernel From 6.11 (inc) to 6.12.75 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability exists in the Linux kernel within the drm/amd/display component. It involves the lack of a signal type check for the dcn401 get_phyd32clk_src function. Without this check, attempting to access the link encoder on a dpia link can cause the system to crash.

Impact Analysis

The vulnerability can cause the Linux system to crash when trying to access certain hardware components related to display (specifically the link encoder on a dpia link). This could lead to system instability or denial of service.

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