PT-2026-44284 · Linux · Linux Kernel

CVE-2026-46161 · Published 2026-05-28 · Updated 2026-07-31

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 A divide-by-zero error exists in the setup geo() function within the md/raid10 module. The issue occurs when the setup geo() function extracts near copies (nc) and far copies (fc) from the user-provided layout parameter without verifying if they are zero. If far copies is zero and the improved far set layout is selected, the operation geo->far set size = disks / fc triggers the divide-by-zero condition.

Recommendations Validate near copies and far copies immediately after extraction and return -1 if either value is zero.

Exploit

Fix

Divide By Zero

Weakness Enumeration

CWE-369

Related Identifiers

CVE-2026-46161

ECHO-CC3B-C0FE-A6FB

OPENSUSE-SU-2026:10954-1

OPENSUSE-SU-2026:21388-1

SUSE-SU-2026:22742-1

SUSE-SU-2026:22769-1

SUSE-SU-2026:22809-1

SUSE-SU-2026:22810-1

SUSE-SU-2026:22812-1

SUSE-SU-2026:22835-1

SUSE-SU-2026:22903-1

SUSE-SU-2026:22904-1

SUSE-SU-2026:3130-1

SUSE-SU-2026:3166-1

USN-8566-1

USN-8567-1

USN-8568-1

USN-8569-1

USN-8574-1

USN-8574-2

USN-8574-3

USN-8575-1

USN-8575-2

USN-8575-3

USN-8576-1

USN-8576-2

USN-8593-1

USN-8595-1

USN-8595-2

USN-8595-3

USN-8596-1

USN-8597-1

USN-8603-1

USN-8606-1

USN-8607-1

USN-8608-1

USN-8609-1

USN-8610-1

USN-8618-1

USN-8619-1

USN-8620-1

USN-8620-2

USN-8620-3

USN-8620-4

Affected Products

Linux Kernel

References · 3637

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46161.json · Exploit
• https://ubuntu.com/security/CVE-2026-52916 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-43117 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-43371 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-64001 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-52959 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-31416 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-31580 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-46128 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-64129 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-46157 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-31576 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-45928 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23361 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-43412 · Vendor Advisory