SB20251226139 - Use-after-free in Linux kernel ntfs3
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226139
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2022-50737)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the ntfs_security_init() function in fs/ntfs3/fsntfs.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/24ee53c6bce15500db22f2a7aee9dd830e806c90
- https://git.kernel.org/stable/c/bfcdbae0523bd95eb75a739ffb6221a37109881e
- https://git.kernel.org/stable/c/d6379ce242960a8e9ecd6ff76f476d9336c21f16
- https://git.kernel.org/stable/c/d7ce7bb6881aae186e50f57eea935cff8d504751
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.87