Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected f2bfd0a2a640ca2f308b6893a89cfb2ec31e8fde before 8731a0b180f6b5d52397c7aeea6eda9511a467a7; affected 2fa487a9466760a4fb6f147aed6219379dabfc2e before 7026576e89094aa9a0062aa6d10cba18aa99944c; affected 5265397f94424eaea596026fd34dc7acf474dcec before d77e2b5104c51d3668b9717c825a4a06998efe63; affected 5265397f94424eaea596026fd34dc7acf474dcec before 17e2956633ca560b95f1cbbb297cfc2adf650649; affected 5265397f94424eaea596026fd34dc7acf474dcec before f1274cfab183e69a7c7bafffcb4f50703c876276; affected 5265397f94424eaea596026fd34dc7acf474dcec before 7838de15bb700c2898a7d741db9b1f3cbc86c136; affected 5.15.128 before 5.15.162 |
| Linux / Linux | affected 6.1; unaffected 0 before 6.1; unaffected 5.15.162 through 5.15.*; unaffected 6.1.97 through 6.1.*; unaffected 6.6.37 through 6.6.*; unaffected 6.9.8 through 6.9.*; unaffected 6.10 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/8731a0b180f6b5d52397c7aeea6eda9511a467a7
- https://git.kernel.org/stable/c/7026576e89094aa9a0062aa6d10cba18aa99944c
- https://git.kernel.org/stable/c/d77e2b5104c51d3668b9717c825a4a06998efe63
- https://git.kernel.org/stable/c/17e2956633ca560b95f1cbbb297cfc2adf650649
- https://git.kernel.org/stable/c/f1274cfab183e69a7c7bafffcb4f50703c876276
- https://git.kernel.org/stable/c/7838de15bb700c2898a7d741db9b1f3cbc86c136
ADP enrichment
No English description supplied.
- https://git.kernel.org/stable/c/7026576e89094aa9a0062aa6d10cba18aa99944c
- https://git.kernel.org/stable/c/d77e2b5104c51d3668b9717c825a4a06998efe63
- https://git.kernel.org/stable/c/17e2956633ca560b95f1cbbb297cfc2adf650649
- https://git.kernel.org/stable/c/f1274cfab183e69a7c7bafffcb4f50703c876276
- https://git.kernel.org/stable/c/7838de15bb700c2898a7d741db9b1f3cbc86c136
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
No English description supplied.
No references supplied.