SB2025052134 - Improper locking in Linux kernel typec ucsi driver
Published: May 21, 2025
Security Bulletin ID
SB2025052134
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-2025-37967)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the ucsi_set_drvdata() function in drivers/usb/typec/ucsi/ucsi.c, within the ucsi_displayport_enter(), ucsi_displayport_exit() and ucsi_displayport_vdm() functions in drivers/usb/typec/ucsi/displayport.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.