SB20240608244 - Improper locking in Linux kernel usb dwc3 driver
Published: June 8, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240608244
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper locking (CVE-ID: CVE-2021-46941)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the dwc3_set_prtcap(), __dwc3_set_mode() and dwc3_probe() functions in drivers/usb/dwc3/core.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/fce7bbcd07d59ac30dba8ce225316b3b4c1c7b50
- https://git.kernel.org/stable/c/800f58217626c8b147aa40660e572ed8a0d56e3b
- https://git.kernel.org/stable/c/1c10fd60c8595ea7ff7e29d3cf1fa88069941da3
- https://git.kernel.org/stable/c/f88359e1588b85cf0e8209ab7d6620085f3441d9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.36
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.20
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13