CVE-2024-42319

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-42319
In the Linux kernel, the following vulnerability has been resolved: mailbox: mtk-cmdq: Move devm_mbox_controller_register() after devm_pm_runtime_enable() When mtk-cmdq unbinds, a WARN_ON message with condition pm_runtime_get_sync() < 0 occurs. According to the call tracei below: cmdq_mbox_shutdown mbox_free_channel mbox_controller_unregister __devm_mbox_controller_unregister ... The root cause can be deduced to be calling pm_runtime_get_sync() after calling pm_runtime_disable() as observed below: 1. CMDQ driver uses devm_mbox_controller_register() in cmdq_probe() to bind the cmdq device to the mbox_controller, so devm_mbox_controller_unregister() will automatically unregister the device bound to the mailbox controller when the device-managed resource is removed. That means devm_mbox_controller_unregister() and cmdq_mbox_shoutdown() will be called after cmdq_remove(). 2. CMDQ driver also uses devm_pm_runtime_enable() in cmdq_probe() after devm_mbox_controller_register(), so that devm_pm_runtime_disable() will be called after cmdq_remove(), but before devm_mbox_controller_unregister(). To fix this problem, cmdq_probe() needs to move devm_mbox_controller_register() after devm_pm_runtime_enable() to make devm_pm_runtime_disable() be called after devm_mbox_controller_unregister().

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/11fa625b45faf0649118b9deaf2d31c86ac41911 Patch
https://git.kernel.org/stable/c/1403991a40b94438a2acc749bf05c117abdb34f9 Patch
https://git.kernel.org/stable/c/a8bd68e4329f9a0ad1b878733e0f80be6a971649 Patch
https://git.kernel.org/stable/c/d00df6700ad10974a7e20646956f4ff22cdbe0ec 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:*:*:*:*:*:*:*:*
History

07 Oct 2025, 20:24

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/11fa625b45faf0649118b9deaf2d31c86ac41911 - () https://git.kernel.org/stable/c/11fa625b45faf0649118b9deaf2d31c86ac41911 - Patch
References () https://git.kernel.org/stable/c/1403991a40b94438a2acc749bf05c117abdb34f9 - () https://git.kernel.org/stable/c/1403991a40b94438a2acc749bf05c117abdb34f9 - Patch
References () https://git.kernel.org/stable/c/a8bd68e4329f9a0ad1b878733e0f80be6a971649 - () https://git.kernel.org/stable/c/a8bd68e4329f9a0ad1b878733e0f80be6a971649 - Patch
References () https://git.kernel.org/stable/c/d00df6700ad10974a7e20646956f4ff22cdbe0ec - () https://git.kernel.org/stable/c/d00df6700ad10974a7e20646956f4ff22cdbe0ec - Patch
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE NVD-CWE-noinfo
First Time Linux linux Kernel
Linux
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5

14 Dec 2024, 21:15

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/1403991a40b94438a2acc749bf05c117abdb34f9 -

09 Dec 2024, 13:10

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/d00df6700ad10974a7e20646956f4ff22cdbe0ec -

19 Aug 2024, 12:59

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se resolvió la siguiente vulnerabilidad: buzón: mtk-cmdq: mover devm_mbox_controller_register() después de devm_pm_runtime_enable() Cuando mtk-cmdq se desvincula, aparece un mensaje WARN_ON con la condición pm_runtime_get_sync() &lt; 0. De acuerdo con el seguimiento de llamadas a continuación: cmdq_mbox_shutdown mbox_free_channel mbox_controller_unregister __devm_mbox_controller_unregister ... Se puede deducir que la causa raíz es llamar a pm_runtime_get_sync() después de llamar a pm_runtime_disable() como se observa a continuación: 1. El controlador CMDQ usa devm_mbox_controller_register() en cmdq_probe() para vincular el cmdq al mbox_controller, por lo que devm_mbox_controller_unregister() cancelará automáticamente el registro del dispositivo vinculado al controlador del buzón cuando se elimine el recurso administrado por el dispositivo. Eso significa que devm_mbox_controller_unregister() y cmdq_mbox_shoutdown() serán llamados después de cmdq_remove(). 2. El controlador CMDQ también usa devm_pm_runtime_enable() en cmdq_probe() después de devm_mbox_controller_register(), por lo que se llamará a devm_pm_runtime_disable() después de cmdq_remove(), pero antes de devm_mbox_controller_unregister(). Para solucionar este problema, cmdq_probe() necesita mover devm_mbox_controller_register() después de devm_pm_runtime_enable() para que se llame a devm_pm_runtime_disable() después de devm_mbox_controller_unregister().

17 Aug 2024, 09:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-08-17 09:15

Updated : 2025-10-07 20:24

NVD link : CVE-2024-42319

Mitre link : CVE-2024-42319

CVE.ORG link : CVE-2024-42319

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo