CVE-2026-46161

MediumCVSS 5.5/10Last modified Nov 6, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

md/raid10: fix divide-by-zero in setup_geo() with zero far_copies

setup_geo() extracts near_copies (nc) and far_copies (fc) from the user-provided layout parameter without checking for zero. When fc=0 with the "improved" far set layout selected, 'geo->far_set_size = disks / fc' triggers a divide-by-zero.

Validate nc and fc immediately after extraction, returning -1 if either is zero.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-369

Affected software

VendorProductVersions
LinuxLinux>= 475901aff15841fb0a81e7546517407779a9b061, < 0b43a70394ce492274e67463326be03e0a9897c5; >= 475901aff15841fb0a81e7546517407779a9b061, < c716ab3034f84f8a6c226814247b8c5ac9f95da1; >= 475901aff15841fb0a81e7546517407779a9b061, < 553e32adfa1a96b217651139a3f8c3b92b9984ac; >= 475901aff15841fb0a81e7546517407779a9b061, < 4af2e558e6fdfb972c61350653fd55d1f62b60a5; >= 475901aff15841fb0a81e7546517407779a9b061, < 9d8e03b9a2b1e8ce5c198bf3a409a629f4d02cda; >= 475901aff15841fb0a81e7546517407779a9b061, < 913d556e4bd1b56ed822815655b82c7bb54edc51; >= 475901aff15841fb0a81e7546517407779a9b061, < f9ddb621b2325eb69c95692958daf2bab4dea2c4; >= 475901aff15841fb0a81e7546517407779a9b061, < 9aa6d860b0930e2f72795665c42c44252a558a0c
LinuxLinux3.9
SiemensSIMATIC S7-1500 TM MFP - GNU/Linux subsystem< *

References

Timeline

Published
May 28, 2026
Last modified
Nov 6, 2026
NVD status
Modified

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CVE-2026-46161: Medium severity, CVSS 5.5 | Vulnix