SB2024061322 - Improper locking in Linux kernel typec tcpm driver
Published: June 13, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024061322
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-2021-47268)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the tcpm_unregister_port() function in drivers/usb/typec/tcpm/tcpm.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/18eaf0de50eadeeb395b83310b259b21ad8ed0a6
- https://git.kernel.org/stable/c/d0a06696a8a4d99f649240b6f9b8a2e55452ecf5
- https://git.kernel.org/stable/c/3a13ff7ef4349d70d1d18378d661117dd5af8efe
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.44
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13