CVE-2024-42085
usb: dwc3: core: remove lock of otg mode during gadget suspend/resume to avoid deadlock
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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 Scores
SSVC
- Decision:Track
Timeline
- 2024-07-29 CVE Reserved
- 2024-07-29 CVE Published
- 2024-08-27 EPSS Updated
- 2024-12-19 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (7)
URL | Tag | Source |
---|---|---|
https://git.kernel.org/stable/c/2fa487a9466760a4fb6f147aed6219379dabfc2e | Vuln. Introduced | |
https://git.kernel.org/stable/c/5265397f94424eaea596026fd34dc7acf474dcec | Vuln. Introduced |
URL | Date | SRC |
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URL | Date | SRC |
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Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
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Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.15.128 < 5.15.162 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.15.128 < 5.15.162" | en |
Affected
| ||||||
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.1 < 6.1.97 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.1 < 6.1.97" | en |
Affected
| ||||||
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.1 < 6.6.37 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.1 < 6.6.37" | en |
Affected
| ||||||
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.1 < 6.9.8 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.1 < 6.9.8" | en |
Affected
| ||||||
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.1 < 6.10 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.1 < 6.10" | en |
Affected
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