SB20251226343 - Input validation error in Linux kernel fs
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226343
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-2023-54099)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the reconfigure_super() function in fs/super.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/0336b42456e485fda1006b5b411e7372e20fbf03
- https://git.kernel.org/stable/c/0ccfe21949bc9f706a86ee7351b74375c0745757
- https://git.kernel.org/stable/c/295ef44a2abaf97d7a594b1d4c60d4be3738191f
- https://git.kernel.org/stable/c/4abda85197ba5d695e6040d580b4b409ce0d3733
- https://git.kernel.org/stable/c/7e4e87ec56aa6d008c64eab31b340a7c452b26cc
- https://git.kernel.org/stable/c/c541dce86c537714b6761a79a969c1623dfa222b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.190
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.126
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.253
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.45
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5