PT-2026-43887 · Linux · Linux Kernel

CVE-2026-46020 · Published 2026-05-27 · Updated 2026-07-24

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.0.11-1.1

Description Privileged users can trigger an out-of-bounds memory access via DAMON SYSFS. The issue occurs because the node ID in damos quota goal->nid for node mem used bp and node mem free bp is used in si meminfo node() and NODE DATA() without proper validation. This allows the setting of arbitrary values for the node ID, potentially leading to a kernel NULL pointer dereference.

Recommendations Update to version 7.0.11-1.1.

Exploit

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-46020

OPENSUSE-SU-2026:10954-1

USN-8488-1

USN-8488-2

USN-8489-1

USN-8507-1

USN-8569-1

USN-8603-1

Affected Products

Linux Kernel

References · 1351

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46020.json · Exploit
• https://ubuntu.com/security/CVE-2026-46135 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-46015 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-46234 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-46002 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-31609 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-53358 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-53115 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-63853 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-46063 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-53053 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-46304 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-53012 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-46322 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-46068 · Vendor Advisory