CVE-2024-56683

low-risk
Published 2024-12-28

In the Linux kernel, the following vulnerability has been resolved: drm/vc4: hdmi: Avoid hang with debug registers when suspended Trying to read /sys/kernel/debug/dri/1/hdmi1_regs when the hdmi is disconnected results in a fatal system hang. This is due to the pm suspend code disabling the dvp clock. That is just a gate of the 108MHz clock in DVP_HT_RPI_MISC_CONFIG, which results in accesses hanging AXI bus. Protect against this.

Do I need to act?

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0.01% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (6)

Patch https://git.kernel.org/stable/c/0ea29bd7d9400d3629683244d609358ed1b12075
Patch https://git.kernel.org/stable/c/16f351adf733a182224ad24916d7673aa6df02df
Patch https://git.kernel.org/stable/c/223ee2567a55e4f80315c768d2969e6a3b9fb23d
Patch https://git.kernel.org/stable/c/74f21be9990a42dc2357bcf87a13e16c6998b90e
Patch https://git.kernel.org/stable/c/c7d474974954d9af7e0092021223d58f2de128df
https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal