PT-2024-7856 · Linux+3 · Linux Kernel+3

Blazej Kucman · Published 2024-02-07 · Updated 2025-09-29 · CVE-2024-27023

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to a missing release of 'active io' for flush in the Linux kernel. This can cause mddev suspend() to wait for 'active io' to be zero forever. The problem arises from the submit flushes() function, where 'active io' is not released when 'flush pending' is decreased to zero. This can lead to a denial of service.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Weakness Enumeration

CWE-399

Related Identifiers

ALSA-2025_12746

ALSA-2025_12752

ALSA-2025_12753

ALSA-2025_16880

BDU:2024-09358

CVE-2024-27023

INFSA-2024_9315

RHSA-2024:9315

RHSA-2024_9315

SUSE-SU-2025:20008-1

SUSE-SU-2025:20028-1

Affected Products

Astra Linux

Linux Kernel

Red Hat

Red Os

References · 1921

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/27xxx/CVE-2024-27023.json · Exploit
• https://git.kernel.org/stable/c/6b2ff10390b19a2364af622b6666b690443f9f3f · Patch
• https://osv.dev/vulnerability/CVE-2024-27023 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-09358 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-27023 · Security Note
• https://ubuntu.com/security/CVE-2024-27023 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2024-27023 · Vendor Advisory
• https://git.kernel.org/stable/c/02dad157ba11064d073f5499dc33552b227d5d3a · Patch
• https://git.kernel.org/stable/c/11f81438927f84edfaaeb5d5f10856c3a1c1fc82 · Patch
• https://git.kernel.org/stable/c/855678ed8534518e2b428bcbcec695de9ba248e8 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:20028-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-27023 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2024-27023 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2024-27023 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2024-27023 · Security Note