PT-2024-3381 · Linux+9 · Linux Kernel+9

Syzbot · Published 2024-01-17 · Updated 2025-09-29 · CVE-2024-26638

Positive Technologies (AI Summary)

CVSS v2.0

7.2

High

Base vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 6.7.0-rc7-syzkaller-00041-gf016f7547aee

Description: The issue is related to the nbd module in the Linux kernel, where the struct msghdr is not fully initialized, leading to potential security risks. The msg->msg get inq value can be uninitialized, causing issues. The problem arises from recent changes that added new fields to struct msghdr, which should be initialized to zero by default. This vulnerability could potentially impact the confidentiality, integrity, and availability of protected information.

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

Exploit

DoS

Use of Uninitialized Resource

Weakness Enumeration

CWE-908

CWE-456

Related Identifiers

ALSA-2024:7000

ALSA-2025_12746

ALSA-2025_12752

ALSA-2025_12753

ALSA-2025_16880

BDU:2024-03653

CESA-2024_7000

CVE-2024-26638

INFSA-2024_7000

INFSA-2024_9315

RHSA-2024:7000

RHSA-2024:9315

RHSA-2024_7000

RHSA-2024_9315

RHSA-2025:9584

SUSE-SU-2024:2135-1

SUSE-SU-2024:2203-1

SUSE-SU-2024:2973-1

SUSE-SU-2025:20008-1

SUSE-SU-2025:20028-1

USN-6765-1

USN-6818-1

USN-6818-2

USN-6818-3

USN-6818-4

USN-6819-1

USN-6819-2

USN-6819-3

USN-6819-4

Affected Products

Almalinux

Astra Linux

Centos

Linuxmint

Linux Kernel

Red Hat

Red Os

Rocky Linux

Suse

Ubuntu

References · 2428

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26638.json · Exploit
• https://ubuntu.com/security/CVE-2023-52452 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52635 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26649 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-26638 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52679 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52591 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26647 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52622 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52598 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52597 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26608 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52677 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52494 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2203-1 · Vendor Advisory