SB20250226535 - Improper locking in Linux kernel ipv4
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226535
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 locking (CVE-ID: CVE-2022-49092)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the fib_nh_match() function in net/ipv4/fib_semantics.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/63ea57478aaa3e06a597081a0f537318fc04e49f
- https://git.kernel.org/stable/c/6bf92d70e690b7ff12b24f4bfff5e5434d019b82
- https://git.kernel.org/stable/c/907c97986d6fa77318d17659dd76c94b65dd27c5
- https://git.kernel.org/stable/c/dcd689f9e2640c992f94eae9955b106f71c6825d
- https://git.kernel.org/stable/c/f5064531c23ad646da7be8b938292b00a7e61438
- https://git.kernel.org/stable/c/f8db5743d09523c0bb35f16e13691e3b7eb5dba0
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.3