SB2025070523 - NULL pointer dereference in Linux kernel jfs
Published: July 5, 2025
Security Bulletin ID
SB2025070523
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-2025-38203)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the jfs_ioc_trim() function in fs/jfs/jfs_discard.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0d50231d473f89024158dc62624930de45d13718
- https://git.kernel.org/stable/c/4a8cb9908b51500a76f5156423bd295df53bff89
- https://git.kernel.org/stable/c/9806ae34d7d661c372247cd36f83bfa0523d60ed
- https://git.kernel.org/stable/c/a4685408ff6c3e2af366ad9a7274f45ff3f394ee
- https://git.kernel.org/stable/c/a9d41c925069c950e18160e12a7e10e0f58c56fb