SB20250916253 - Improper error handling in Linux kernel btrfs
Published: September 16, 2025 Updated: September 22, 2025
Security Bulletin ID
SB20250916253
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 error handling (CVE-ID: CVE-2023-53243)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper error handling within the btrfs_reduce_alloc_profile() function in fs/btrfs/block-group.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/12b6d68498982a053a4a7e561a04387e57ca6f1a
- https://git.kernel.org/stable/c/160fe8f6fdb13da6111677be6263e5d65e875987
- https://git.kernel.org/stable/c/1b532748ba00bd2a1d9b09e0d5e81280582c7770
- https://git.kernel.org/stable/c/4fadf53fa95142f01f215012e97c384529759a72
- https://git.kernel.org/stable/c/a3fbd156bd2cd16e3c64e250ebce33eb9f2ef612
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.188