SB2025122264 - Reachable assertion in Linux kernel jbd2
Published: December 22, 2025
Security Bulletin ID
SB2025122264
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-2025-68337)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to reachable assertion within the jbd2_journal_get_create_access() function in fs/jbd2/transaction.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.