CVE-2024-42085

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-42085
In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: core: remove lock of otg mode during gadget suspend/resume to avoid deadlock When config CONFIG_USB_DWC3_DUAL_ROLE is selected, and trigger system to enter suspend status with below command: echo mem > /sys/power/state There will be a deadlock issue occurring. Detailed invoking path as below: dwc3_suspend_common() spin_lock_irqsave(&dwc->lock, flags); <-- 1st dwc3_gadget_suspend(dwc); dwc3_gadget_soft_disconnect(dwc); spin_lock_irqsave(&dwc->lock, flags); <-- 2nd This issue is exposed by commit c7ebd8149ee5 ("usb: dwc3: gadget: Fix NULL pointer dereference in dwc3_gadget_suspend") that removes the code of checking whether dwc->gadget_driver is NULL or not. It causes the following code is executed and deadlock occurs when trying to get the spinlock. In fact, the root cause is the commit 5265397f9442("usb: dwc3: Remove DWC3 locking during gadget suspend/resume") that forgot to remove the lock of otg mode. So, remove the redundant lock of otg mode during gadget suspend/resume.

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/17e2956633ca560b95f1cbbb297cfc2adf650649 Patch
https://git.kernel.org/stable/c/7026576e89094aa9a0062aa6d10cba18aa99944c Patch
https://git.kernel.org/stable/c/7838de15bb700c2898a7d741db9b1f3cbc86c136 Patch
https://git.kernel.org/stable/c/d77e2b5104c51d3668b9717c825a4a06998efe63 Patch
https://git.kernel.org/stable/c/f1274cfab183e69a7c7bafffcb4f50703c876276 Patch
https://git.kernel.org/stable/c/17e2956633ca560b95f1cbbb297cfc2adf650649 Patch
https://git.kernel.org/stable/c/7026576e89094aa9a0062aa6d10cba18aa99944c Patch
https://git.kernel.org/stable/c/7838de15bb700c2898a7d741db9b1f3cbc86c136 Patch
https://git.kernel.org/stable/c/d77e2b5104c51d3668b9717c825a4a06998efe63 Patch
https://git.kernel.org/stable/c/f1274cfab183e69a7c7bafffcb4f50703c876276 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:*:*:*:*:*:*:*:*
History

21 Nov 2024, 09:33

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/17e2956633ca560b95f1cbbb297cfc2adf650649 - Patch () https://git.kernel.org/stable/c/17e2956633ca560b95f1cbbb297cfc2adf650649 - Patch
References () https://git.kernel.org/stable/c/7026576e89094aa9a0062aa6d10cba18aa99944c - Patch () https://git.kernel.org/stable/c/7026576e89094aa9a0062aa6d10cba18aa99944c - Patch
References () https://git.kernel.org/stable/c/7838de15bb700c2898a7d741db9b1f3cbc86c136 - Patch () https://git.kernel.org/stable/c/7838de15bb700c2898a7d741db9b1f3cbc86c136 - Patch
References () https://git.kernel.org/stable/c/d77e2b5104c51d3668b9717c825a4a06998efe63 - Patch () https://git.kernel.org/stable/c/d77e2b5104c51d3668b9717c825a4a06998efe63 - Patch
References () https://git.kernel.org/stable/c/f1274cfab183e69a7c7bafffcb4f50703c876276 - Patch () https://git.kernel.org/stable/c/f1274cfab183e69a7c7bafffcb4f50703c876276 - Patch

26 Aug 2024, 14:28

Type Values Removed Values Added
First Time Linux
Linux linux Kernel
References () https://git.kernel.org/stable/c/17e2956633ca560b95f1cbbb297cfc2adf650649 - () https://git.kernel.org/stable/c/17e2956633ca560b95f1cbbb297cfc2adf650649 - Patch
References () https://git.kernel.org/stable/c/7026576e89094aa9a0062aa6d10cba18aa99944c - () https://git.kernel.org/stable/c/7026576e89094aa9a0062aa6d10cba18aa99944c - Patch
References () https://git.kernel.org/stable/c/7838de15bb700c2898a7d741db9b1f3cbc86c136 - () https://git.kernel.org/stable/c/7838de15bb700c2898a7d741db9b1f3cbc86c136 - Patch
References () https://git.kernel.org/stable/c/d77e2b5104c51d3668b9717c825a4a06998efe63 - () https://git.kernel.org/stable/c/d77e2b5104c51d3668b9717c825a4a06998efe63 - Patch
References () https://git.kernel.org/stable/c/f1274cfab183e69a7c7bafffcb4f50703c876276 - () https://git.kernel.org/stable/c/f1274cfab183e69a7c7bafffcb4f50703c876276 - Patch
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE CWE-667

30 Jul 2024, 13:33

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: dwc3: core: elimina el bloqueo del modo otg durante la suspensión/reanudación del dispositivo para evitar un punto muerto Cuando se selecciona config CONFIG_USB_DWC3_DUAL_ROLE y activa el sistema para que entre en estado de suspensión con el siguiente comando: echo mem &gt; /sys/power/state Se producirá un problema de interbloqueo. Ruta de invocación detallada como se muestra a continuación: dwc3_suspend_common() spin_lock_irqsave(&amp;dwc-&gt;lock, flags); &lt;-- 1er dwc3_gadget_suspend(dwc); dwc3_gadget_soft_disconnect(dwc); spin_lock_irqsave(&amp;dwc-&gt;bloquear, banderas); &lt;-- 2.º Este problema se expone mediante la confirmación c7ebd8149ee5 ("usb: dwc3: gadget: Fix NULL pointer dereference in dwc3_gadget_suspend") que elimina el código para verificar si dwc-&gt;gadget_driver es NULL o no. Hace que se ejecute el siguiente código y se produzca un punto muerto al intentar obtener el bloqueo de giro. De hecho, la causa principal es la confirmación 5265397f9442("usb: dwc3: Eliminar el bloqueo de DWC3 durante la suspensión/reanudación del dispositivo") que olvidó eliminar el bloqueo del modo otg. Por lo tanto, elimine el bloqueo redundante del modo otg durante la suspensión/reanudación del dispositivo.

29 Jul 2024, 17:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-07-29 17:15

Updated : 2024-11-21 09:33

NVD link : CVE-2024-42085

Mitre link : CVE-2024-42085

CVE.ORG link : CVE-2024-42085

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-667

Improper Locking