CVE-2023-54041

kernel: Linux kernel: Memory leak in io_uring can lead to denial of service

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Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · December 24, 2025

Updated · July 22, 2026

Description

A flaw was found in the Linux kernel's io_uring subsystem. When removing provided buffers, the system fails to properly dispose of io_buffer structures, leading to a memory leak. A local attacker could exploit this vulnerability to cause a denial of service (DoS) due to memory exhaustion.

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 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-772 · Missing Release of Resource after Effective Lifetime