PT-2024-32163 · Linux+6 · Linux Kernel+6

Published 2024-08-22 · Updated 2026-05-26 · CVE-2024-46742

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 versions prior to 6.6.52

Description A null pointer dereference issue has been resolved in the Linux kernel. The issue occurs when req op level equals SMB2 OPLOCK LEVEL LEASE and parse lease state() returns NULL, causing a null pointer dereference of lease ctx info in smb2 open(). The fix involves checking if lease ctx info is NULL. Additionally, redundant parentheses have been removed from parse durable handle context().

Recommendations Update to Linux kernel version 6.6.52 or later to resolve the issue. As a temporary workaround, consider restricting access to the smb2 open() function until a patch is available.

Exploit

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALSA-2025_16880

ALT-PU-2024-12968

ALT-PU-2024-13260

ALT-PU-2024-13979

ALT-PU-2024-14046

AZL-49421

BDU:2025-05914

CVE-2024-46742

DLA-4193-1

DSA-5907-1

ECHO-C640-0E23-B14F

MGASA-2024-0316

MGASA-2024-0318

OESA-2024-2181

OESA-2024-2182

OESA-2024-2183

OESA-2024-2218

USN-7654-1

USN-7654-2

USN-7654-3

USN-7654-4

USN-7654-5

USN-7655-1

USN-7686-1

USN-7711-1

USN-7712-1

USN-7712-2

Affected Products

Alt Linux

Astra Linux

Debian

Linuxmint

Linux Kernel

Red Os

Ubuntu

References · 416

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/46xxx/CVE-2024-46742.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2024-43863 · Security Note
• https://ubuntu.com/security/CVE-2024-38541 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-22025 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-53034 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-46733 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-43846 · Security Note
• https://osv.dev/vulnerability/USN-7654-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-48828 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-44954 · Security Note
• https://ubuntu.com/security/CVE-2025-38083 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-46787 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38037 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-37767 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-35790 · Vendor Advisory