SB20240531171 - Use-after-free in Linux kernel usb dwc3 driver
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531171
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2021-46986)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the dwc3_gadget_exit() function in drivers/usb/dwc3/gadget.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1ea775021282d90e1d08d696b7ab54aa75d688e5
- https://git.kernel.org/stable/c/bc0cdd72493236fb72b390ad38ce581e353c143c
- https://git.kernel.org/stable/c/b4b8e9601d7ee8806d2687f081a42485d27674a1
- https://git.kernel.org/stable/c/bb9c74a5bd1462499fe5ccb1e3c5ac40dcfa9139
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.38
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.22
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13