CVE-2024-56683

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-56683
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.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
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 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

07 Oct 2025, 20:06

Type Values Removed Values Added
CWE NVD-CWE-noinfo
First Time Linux linux Kernel
Linux
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/vc4: hdmi: evitar el bloqueo con registros de depuración cuando está suspendido Intentar leer /sys/kernel/debug/dri/1/hdmi1_regs cuando el hdmi está desconectado da como resultado un bloqueo fatal del sistema. Esto se debe a que el código de suspensión pm deshabilita el reloj dvp. Eso es solo una compuerta del reloj de 108 MHz en DVP_HT_RPI_MISC_CONFIG, lo que da como resultado accesos que bloquean el bus AXI. Protéjase contra esto.
References () https://git.kernel.org/stable/c/0ea29bd7d9400d3629683244d609358ed1b12075 - () https://git.kernel.org/stable/c/0ea29bd7d9400d3629683244d609358ed1b12075 - Patch
References () https://git.kernel.org/stable/c/16f351adf733a182224ad24916d7673aa6df02df - () https://git.kernel.org/stable/c/16f351adf733a182224ad24916d7673aa6df02df - Patch
References () https://git.kernel.org/stable/c/223ee2567a55e4f80315c768d2969e6a3b9fb23d - () https://git.kernel.org/stable/c/223ee2567a55e4f80315c768d2969e6a3b9fb23d - Patch
References () https://git.kernel.org/stable/c/74f21be9990a42dc2357bcf87a13e16c6998b90e - () https://git.kernel.org/stable/c/74f21be9990a42dc2357bcf87a13e16c6998b90e - Patch
References () https://git.kernel.org/stable/c/c7d474974954d9af7e0092021223d58f2de128df - () https://git.kernel.org/stable/c/c7d474974954d9af7e0092021223d58f2de128df - Patch

28 Dec 2024, 10:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-12-28 10:15

Updated : 2025-10-07 20:06

NVD link : CVE-2024-56683

Mitre link : CVE-2024-56683

CVE.ORG link : CVE-2024-56683

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo