Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2026-46161

Severity CVSS v4.0:
Pending analysis
Type:
CWE-369 Divide By Zero
Publication date:
28/05/2026
Last modified:
09/06/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> md/raid10: fix divide-by-zero in setup_geo() with zero far_copies<br /> <br /> setup_geo() extracts near_copies (nc) and far_copies (fc) from the<br /> user-provided layout parameter without checking for zero. When fc=0<br /> with the "improved" far set layout selected, &amp;#39;geo-&gt;far_set_size =<br /> disks / fc&amp;#39; triggers a divide-by-zero.<br /> <br /> Validate nc and fc immediately after extraction, returning -1 if<br /> either is zero.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 3.9.1 (including) 5.10.258 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.11 (including) 5.15.209 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.16 (including) 6.1.175 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.2 (including) 6.6.140 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.7 (including) 6.12.88 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.13 (including) 6.18.30 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.19 (including) 7.0.7 (excluding)
cpe:2.3:o:linux:linux_kernel:3.9:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.9:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.9:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.9:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.9:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.9:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.9:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.9:rc8:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools