SB2025100317 - Improper locking in Linux kernel xfrm
Published: October 3, 2025 Updated: October 27, 2025
Security Bulletin ID
SB2025100317
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-2022-50445)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the xfrm_input_resume(), xfrm_trans_queue_net() and xfrm_input_init() functions in net/xfrm/xfrm_input.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/130d9e5017ade1b81d16783563edb38c12a2eab7
- https://git.kernel.org/stable/c/4f4920669d21e1060b7243e5118dc3b71ced1276
- https://git.kernel.org/stable/c/7d98b26684cb2390729525b341ea099f0badbe18
- https://git.kernel.org/stable/c/f520075da484306bbb8425afd2c42404ba74816f
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.17