CVE - CVE-2024-42085

CVE-ID
CVE-2024-42085	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/17e2956633ca560b95f1cbbb297cfc2adf650649 URL:https://git.kernel.org/stable/c/17e2956633ca560b95f1cbbb297cfc2adf650649 MISC:https://git.kernel.org/stable/c/7026576e89094aa9a0062aa6d10cba18aa99944c URL:https://git.kernel.org/stable/c/7026576e89094aa9a0062aa6d10cba18aa99944c MISC:https://git.kernel.org/stable/c/7838de15bb700c2898a7d741db9b1f3cbc86c136 URL:https://git.kernel.org/stable/c/7838de15bb700c2898a7d741db9b1f3cbc86c136 MISC:https://git.kernel.org/stable/c/d77e2b5104c51d3668b9717c825a4a06998efe63 URL:https://git.kernel.org/stable/c/d77e2b5104c51d3668b9717c825a4a06998efe63 MISC:https://git.kernel.org/stable/c/f1274cfab183e69a7c7bafffcb4f50703c876276 URL:https://git.kernel.org/stable/c/f1274cfab183e69a7c7bafffcb4f50703c876276
Assigning CNA
kernel.org
Date Record Created
20240729	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240729)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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