SB2025062019 - NULL pointer dereference in Linux kernel typec ucsi driver
Published: June 20, 2025 Updated: June 21, 2025
Security Bulletin ID
SB2025062019
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) NULL pointer dereference (CVE-ID: CVE-2022-49944)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the ucsi_unregister_connectors(), ucsi_init(), EXPORT_SYMBOL_GPL() and ucsi_unregister() functions in drivers/usb/typec/ucsi/ucsi.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.