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18 lines
1.1 KiB
Markdown
18 lines
1.1 KiB
Markdown
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### [CVE-2023-52485](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52485)
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### Description
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In the Linux kernel, the following vulnerability has been resolved:drm/amd/display: Wake DMCUB before sending a command[Why]We can hang in place trying to send commands when the DMCUB isn'tpowered on.[How]For functions that execute within a DC context or DC lock we canwrap the direct calls to dm_execute_dmub_cmd/list with code thatexits idle power optimizations and reallows once we're done withthe command submission on success.For DM direct submissions the DM will need to manage the enter/exitsequencing manually.We cannot invoke a DMCUB command directly within the DM executionhelper or we can deadlock.
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### POC
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#### Reference
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No PoCs from references.
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#### Github
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- https://github.com/fkie-cad/nvd-json-data-feeds
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