CVE-2024-42085 (GCVE-0-2024-42085)

Vulnerability from cvelistv5 – Published: 2024-07-29 16:26 – Updated: 2025-11-03 22:01
VLAI?
Title
usb: dwc3: core: remove lock of otg mode during gadget suspend/resume to avoid deadlock
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: f2bfd0a2a640ca2f308b6893a89cfb2ec31e8fde , < 8731a0b180f6b5d52397c7aeea6eda9511a467a7 (git)
Affected: 2fa487a9466760a4fb6f147aed6219379dabfc2e , < 7026576e89094aa9a0062aa6d10cba18aa99944c (git)
Affected: 5265397f94424eaea596026fd34dc7acf474dcec , < d77e2b5104c51d3668b9717c825a4a06998efe63 (git)
Affected: 5265397f94424eaea596026fd34dc7acf474dcec , < 17e2956633ca560b95f1cbbb297cfc2adf650649 (git)
Affected: 5265397f94424eaea596026fd34dc7acf474dcec , < f1274cfab183e69a7c7bafffcb4f50703c876276 (git)
Affected: 5265397f94424eaea596026fd34dc7acf474dcec , < 7838de15bb700c2898a7d741db9b1f3cbc86c136 (git)
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    Linux Linux Affected: 6.1
Unaffected: 0 , < 6.1 (semver)
Unaffected: 5.15.162 , ≤ 5.15.* (semver)
Unaffected: 6.1.97 , ≤ 6.1.* (semver)
Unaffected: 6.6.37 , ≤ 6.6.* (semver)
Unaffected: 6.9.8 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
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