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…
Does this matter?
Lower severity and a low EPSS score (0.18%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.18% probability · 7th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-667
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/17e2956633ca560b95f1cbbb297cfc2adf650649Patch
- https://git.kernel.org/stable/c/7026576e89094aa9a0062aa6d10cba18aa99944cPatch
- https://git.kernel.org/stable/c/7838de15bb700c2898a7d741db9b1f3cbc86c136Patch
- https://git.kernel.org/stable/c/8731a0b180f6b5d52397c7aeea6eda9511a467a7
- https://git.kernel.org/stable/c/d77e2b5104c51d3668b9717c825a4a06998efe63Patch
- https://git.kernel.org/stable/c/f1274cfab183e69a7c7bafffcb4f50703c876276Patch
- https://git.kernel.org/stable/c/17e2956633ca560b95f1cbbb297cfc2adf650649Patch
- https://git.kernel.org/stable/c/7026576e89094aa9a0062aa6d10cba18aa99944cPatch
- https://git.kernel.org/stable/c/7838de15bb700c2898a7d741db9b1f3cbc86c136Patch
- https://git.kernel.org/stable/c/d77e2b5104c51d3668b9717c825a4a06998efe63Patch
- https://git.kernel.org/stable/c/f1274cfab183e69a7c7bafffcb4f50703c876276Patch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.