Riskcovery

CVE-2024-56683

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

State
Published
Severity
Not scored
Published
Dec 28, 2024
Updated
May 23, 2026
Reserved
Dec 27, 2024

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 25eb441d55d479581a65bcc9de88bc1d86bf76c1 to before 0ea29bd7d9400d3629683244d609358ed1b12075Affected
  • 25eb441d55d479581a65bcc9de88bc1d86bf76c1 to before c7d474974954d9af7e0092021223d58f2de128dfAffected
  • 25eb441d55d479581a65bcc9de88bc1d86bf76c1 to before 16f351adf733a182224ad24916d7673aa6df02dfAffected
  • 25eb441d55d479581a65bcc9de88bc1d86bf76c1 to before 74f21be9990a42dc2357bcf87a13e16c6998b90eAffected
  • 25eb441d55d479581a65bcc9de88bc1d86bf76c1 to before 223ee2567a55e4f80315c768d2969e6a3b9fb23dAffected
  • 1da00a63f0e798f0fd0dcf623b16c16e13f93615Affected
  • f70c25cf34f91cc6f40e79a5b7565fd0272d7396Affected
  • 5.18.18 to before 5.19Affected
  • 5.19.2 to before 5.20Affected
LinuxLinux
  • 6.0Affected
  • before 6.0Not affected
  • 6.1.120 through 6.1.*Not affected
  • 6.6.64 through 6.6.*Not affected
  • 6.11.11 through 6.11.*Not affected
  • 6.12.2 through 6.12.*Not affected
  • 6.13 and laterNot affected

References

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