SB2025071145 - Improper locking in Linux kernel fs
Published: July 11, 2025
Security Bulletin ID
SB2025071145
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) Improper locking (CVE-ID: CVE-2025-38306)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the drop_collected_mounts(), has_locked_children(), clone_private_mount(), __do_loopback() and do_set_group() functions in fs/namespace.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.