CVE-2024-56683 - CVE House
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Status published Unknown CVE-2024-56683

drm/vc4: hdmi: Avoid hang with debug registers when suspended

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Linux
Vulnerable Versions:
25eb441d55d479581a65bcc9de88bc1d86bf76c1, 1da00a63f0e798f0fd0dcf623b16c16e13f93615, f70c25cf34f91cc6f40e79a5b7565fd0272d7396, 5.18.18, 5.19.2, 6.0, 0, 6.1.120, 6.6.64, 6.11.11, 6.12.2, 6.13

Timeline

Official Publish: December 28th, 2024
Last Modified: May 23rd, 2026
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.