SB2025120491 - Improper Initialization in Linux kernel nios2 kernel
Published: December 4, 2025
Security Bulletin ID
SB2025120491
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 Initialization (CVE-ID: CVE-2025-40245)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper initialization within the find_limits() and setup_arch() functions in arch/nios2/kernel/setup.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/25f09699edd360b534ccae16bc276c3b52c471f3
- https://git.kernel.org/stable/c/5c3e38a367822f036227dd52bac82dc4a05157e2
- https://git.kernel.org/stable/c/8912814f14e298b83df072fecc1f7ed1b63b1b2c
- https://git.kernel.org/stable/c/90f5f715550e07cd6a51f80fc3f062d832c8c997
- https://git.kernel.org/stable/c/a20b83cf45be2057f3d073506779e52c7fa17f94
- https://git.kernel.org/stable/c/b1ec9faef7e36269ca3ec890972a78effbaeb975