#VU120309 Memory leak in Linux kernel - CVE-2022-50783
Published: December 26, 2025 / Updated: December 31, 2025
Vulnerability identifier: #VU120309
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-50783
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the subflow_req_destructor(), subflow_v4_conn_request(), subflow_v6_conn_request(), subflow_ops_init() and mptcp_subflow_init() functions in net/mptcp/subflow.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/092953f3c4cd65f88b27b87a922f6c725f34ee04
- https://git.kernel.org/stable/c/1922ea6b0ae2ea0c9a09be0eafafe1cd1069d259
- https://git.kernel.org/stable/c/6eb02c596ec02e5897ae377e065cb7df55337a96
- https://git.kernel.org/stable/c/bd5dc96fea4edd16d2e22f41b4dd50a4cfbeb919
- https://git.kernel.org/stable/c/d3295fee3c756ece33ac0d935e172e68c0a4161b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.163
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.87
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.18
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2