SB2025100165 - Reachable assertion in Linux kernel core
Published: October 1, 2025
Security Bulletin ID
SB2025100165
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) Reachable assertion (CVE-ID: CVE-2025-39900)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to reachable assertion within the est_timer() function in net/core/gen_estimator.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.