CVE-2024-42085

MEDIUM EPSS 7.4%
Published Jul 29, 20241y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Jul 29, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

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 Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
7.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-667

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel*≥5.15.128  –  <5.15.162
linuxlinux_kernel*≥6.1  –  <6.1.97
linuxlinux_kernel*≥6.2  –  <6.6.37
linuxlinux_kernel*≥6.7  –  <6.9.8

References 7

  • git.kernel.org https://git.kernel.org/stable/c/17e2956633ca560b95f1cbbb297cfc2adf650649
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7026576e89094aa9a0062aa6d10cba18aa99944c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7838de15bb700c2898a7d741db9b1f3cbc86c136
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8731a0b180f6b5d52397c7aeea6eda9511a467a7
  • git.kernel.org https://git.kernel.org/stable/c/d77e2b5104c51d3668b9717c825a4a06998efe63
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f1274cfab183e69a7c7bafffcb4f50703c876276
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/17e2956633ca560b95f1cbbb297cfc2adf650649
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7026576e89094aa9a0062aa6d10cba18aa99944c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7838de15bb700c2898a7d741db9b1f3cbc86c136
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d77e2b5104c51d3668b9717c825a4a06998efe63
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f1274cfab183e69a7c7bafffcb4f50703c876276
    Patch