SB2025102045 - Memory leak in Linux kernel thunderbolt driver
Published: October 20, 2025
Security Bulletin ID
SB2025102045
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) Memory leak (CVE-ID: CVE-2025-40002)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the tb_dp_dprx_work() and tb_dp_dprx_stop() functions in drivers/thunderbolt/tunnel.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.