CVE Database›Document archive›CVE-2022-50234

CVE-2022-50234

kernel: Linux kernel: Denial of Service due to improper io_uring/af_unix file cleanup

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Severity

Moderate

Red Hat Product Security

7.1

CVSS 3.1

Review impact separately from score.

Published · September 15, 2025

Updated · October 30, 2026

Description

A flaw was found in the Linux kernel's io_uring/af_unix component. A local user could exploit improper handling of registered files during garbage collection. This vulnerability can lead to a memory leak, potentially causing a denial of service (DoS) on the system.

Statement

This vulnerability is rated as Moderate because exploitation requires local access with privileges to invoke io_uring system calls, limiting the risk primarily to localized resource exhaustion or denial of service rather than immediate privilege escalation. Under default Red Hat Enterprise Linux configurations, unprivileged users can interact with the io_uring interface and UNIX domain sockets, allowing an attacker to repeatedly trigger flawed garbage collection routines and leak kernel resources. Because the flaw cannot be triggered over an untrusted network and does not directly compromise system confidentiality or integrity, the overall operational severity remains bounded.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

CWE-459 · Incomplete Cleanup