CVE-2023-2430

MEDIUM

Linux Kernel < 6.2 - Improper Locking

Title source: rule

Description

A vulnerability was found due to missing lock for IOPOLL flaw in io_cqring_event_overflow() in io_uring.c in Linux Kernel. This flaw allows a local attacker with user privilege to trigger a Denial of Service threat.

References (2)

[Patch] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e12d7a46f65ae4b7d58a5e0c1cbfa825cf8

[Third Party Advisory] https://www.debian.org/security/2023/dsa-5492

Scores

CVSS v3 5.5

EPSS 0.0001

EPSS Percentile 1.9%

Attack Vector LOCAL

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-667 CWE-413

Status published

Products (2)

linux/linux_kernel 6.2 (5 CPE variants)

linux/linux_kernel < 6.2

Published Jul 23, 2023

Tracked Since Feb 18, 2026