CVE-2025-21985

drm/amd/display: Fix out-of-bound accesses

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix out-of-bound accesses [WHAT & HOW] hpo_stream_to_link_encoder_mapping has size MAX_HPO_DP2_ENCODERS(=4), but location can have size up to 6. As a result, it is necessary to check location against MAX_HPO_DP2_ENCODERS. Similiarly, disp_cfg_stream_location can be used as an array index which should be 0..5, so the ASSERT's conditions should be less without equal.

N/A

CVSS

Severity:

EPSS 0.02%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/36793d90d76f667d26c6dd025571481ee0c96abc
https://git.kernel.org/stable/c/9aedc776b11038f04f4641241bb7e877781e4aa4
https://git.kernel.org/stable/c/8adbb2a98b00926315fd513b5fe2596b5716b82d

Frequently Asked Questions

What is the severity of CVE-2025-21985?: CVE-2025-21985 has not yet been assigned a CVSS score.
How to fix CVE-2025-21985?: To fix CVE-2025-21985, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-21985 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2025-21985 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-21985?: CVE-2025-21985 affects Linux Linux, Linux Linux.

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