SB20251226281 - Improper error handling in Linux kernel ext4
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226281
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-2023-54069)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper error handling within the ext4_mb_new_inode_pa() function in fs/ext4/mballoc.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/58fe961c606c446f5612f6897827b1cac42c2e89
- https://git.kernel.org/stable/c/83ecffd40c65844a73c2e93d7c841455786605ac
- https://git.kernel.org/stable/c/b7e9ec38b6a0beb5a49cd1e76be0a9a07c218e90
- https://git.kernel.org/stable/c/bc056e7163ac7db945366de219745cf94f32a3e6
- https://git.kernel.org/stable/c/f2c3a3aa6f11ad9878dbc3a067b0633e07b586c1
- https://git.kernel.org/stable/c/fcefddf3a151b2c416b20120c06bb1ba9ad676fb
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.61