CVE-2024-56683

MEDIUM

Linux Kernel 5.18.18-5.19 - Denial of Service via HDMI Debug Register Access

Title source: llm

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.

References (6)

Core 6

Core References

Mailing List

https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html

Patch

https://git.kernel.org/stable/c/0ea29bd7d9400d3629683244d609358ed1b12075

Patch

https://git.kernel.org/stable/c/c7d474974954d9af7e0092021223d58f2de128df

Patch

https://git.kernel.org/stable/c/16f351adf733a182224ad24916d7673aa6df02df

Patch

https://git.kernel.org/stable/c/74f21be9990a42dc2357bcf87a13e16c6998b90e

Patch

https://git.kernel.org/stable/c/223ee2567a55e4f80315c768d2969e6a3b9fb23d

Scores

CVSS v3 5.5

EPSS 0.0022

EPSS Percentile 12.6%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published

Products (21)

linux/Kernel 6.0.0 - 6.1.120linux

linux/Kernel 6.12.0 - 6.12.2linux

linux/Kernel 6.2.0 - 6.6.64linux

linux/Kernel 6.7.0 - 6.11.11linux

Linux/Linux < 6.0

Linux/Linux 1da00a63f0e798f0fd0dcf623b16c16e13f93615

Linux/Linux 25eb441d55d479581a65bcc9de88bc1d86bf76c1 - 0ea29bd7d9400d3629683244d609358ed1b12075

Linux/Linux 25eb441d55d479581a65bcc9de88bc1d86bf76c1 - 16f351adf733a182224ad24916d7673aa6df02df

Linux/Linux 25eb441d55d479581a65bcc9de88bc1d86bf76c1 - 223ee2567a55e4f80315c768d2969e6a3b9fb23d

Linux/Linux 25eb441d55d479581a65bcc9de88bc1d86bf76c1 - 74f21be9990a42dc2357bcf87a13e16c6998b90e

... and 11 more

Published Dec 28, 2024

Tracked Since Feb 18, 2026