CVE-2023-52485
MediumIn 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't powered on. [How] For functions that execute within a DC context or DC lock we can wrap the direct calls to dm_execute_dmub_cmd/list with code that exits idle power optimizations and reallows once we're done with the command submission on success. For DM direct submissions the DM will need to manage the enter/exit sequencing manually. We cannot invoke a DMCUB command directly within the DM execution helper or we can deadlock.
CVSS 3.1 score
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected versions
Linux kernel versions
4.15
and later are affected. Fixed in
6.7.3,
6.8
and their respective stable series.
References
2 totalFrequently asked questions
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What is CVE-2023-52485?
CVE-2023-52485 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 4.15 onward and has been patched in 6.7.3 and 6.8. CVE-2023-52485 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2023-52485?
CVE-2023-52485 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. -
Is there a patch available for CVE-2023-52485?
Yes. CVE-2023-52485 has been patched. Fixed versions include 6.7.3 and 6.8. If you are running Linux kernel 4.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2023-52485 actively exploited?
No. CVE-2023-52485 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.