SB20260114139 - Memory leak in Linux kernel ext4
Published: January 14, 2026
Security Bulletin ID
SB20260114139
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-2025-71123)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the parse_apply_sb_mount_options() function in fs/ext4/super.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/5bbacbbf1ca4419861dca3c6b82707c10e9c021c
- https://git.kernel.org/stable/c/6e37143560e37869d51b7d9e0ac61fc48895f8a0
- https://git.kernel.org/stable/c/902ca2356f1e3ec5355c5808ad5d3f9d0095b0cc
- https://git.kernel.org/stable/c/db9ee13fab0267eccf6544ee35b16c9522db9aac
- https://git.kernel.org/stable/c/ee5a977b4e771cc181f39d504426dbd31ed701cc