SB20251008113 - Input validation error in Linux kernel btrfs
Published: October 8, 2025 Updated: October 26, 2025
Security Bulletin ID
SB20251008113
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) Input validation error (CVE-ID: CVE-2023-53618)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the check_root_key() function in fs/btrfs/tree-checker.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/314135b7bae9618a317874ae195272682cf2d5d4
- https://git.kernel.org/stable/c/3ae93b316ca4b8b3c33798ef1d210355f2fb9318
- https://git.kernel.org/stable/c/6ebcd021c92b8e4b904552e4d87283032100796d
- https://git.kernel.org/stable/c/84256e00eeca73c529fc6196e478cc89b8098157
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.11