CVE-2026-43243
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AMD Display Driver Signal Type Validation Flaw
Publication date: 2026-05-06
Last updated on: 2026-05-06
Assigner: kernel.org
Description
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
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | * |
Helpful Resources
Exploitability
CWE
KEV
| 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 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.
How can this vulnerability impact me? :
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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