CVE-2024-0582 HIGH

CVE-2024-0582: Kernel: io_uring: page use-after-free vulnerability via buffer ring mmap

Vendor Red Hat
Product Red Hat Enterprise Linux 6
Weakness CWE-416
Published January 16, 2024
Last update November 20, 2025
View on NVD All CVEs

CVSS base score

7.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

A memory leak flaw was found in the Linux kernel’s io_uring functionality in how a user registers a buffer ring with IORING_REGISTER_PBUF_RING, mmap() it, and then frees it. This flaw allows a local user to crash or potentially escalate their privileges on the system.

Key dates

02Disclosure timeline

January 16, 2024 CVE published
November 20, 2025 Record updated