SB20240531345 - Memory leak in Linux kernel btrfs
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531345
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-2021-47508)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the btrfs_check_data_free_space() and btrfs_delalloc_reserve_space() functions in fs/btrfs/delalloc-space.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.