CVE-2024-47662: drm/amd/display: Remove register from DCN35 DMCUB diagnostic collection

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-10-09 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Remove register from DCN35 DMCUB diagnostic collection [Why] These registers should not be read from driver and triggering the security violation when DMCUB work times out and diagnostics are collected blocks Z8 entry. [How] Remove the register read from DCN35.

Affected products

Linux kernel: before 6.10.9 — fixed in 6.10.9

How to fix

Upgrade to a fixed version: Linux kernel 6.10.9. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/466423c6dd8af23ebb3a69d43434d01aed0db356
https://git.kernel.org/stable/c/eba4b2a38ccdf074a053834509545703d6df1d57

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