SB2024050838 - Denial of service in Linux kernel btrfs
Published: May 8, 2024 Updated: May 14, 2025
Security Bulletin ID
SB2024050838
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) Resource management error (CVE-ID: CVE-2021-47113)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper management of internal resources within the btrfs_rename_exchange() function in fs/btrfs/inode.c. A local user can corrupt the filesystem and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0df50d47d17401f9f140dfbe752a65e5d72f9932
- https://git.kernel.org/stable/c/ff8de2cec65a8c8521faade12a31b39c80e49f5b
- https://git.kernel.org/stable/c/dc09ef3562726cd520c8338c1640872a60187af5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.43
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13