CVE-2026-46161
md/raid10: fix divide-by-zero in setup_geo() with zero far_copies
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.
INFO
Published Date :
May 28, 2026, 10:16 a.m.
Last Modified :
June 9, 2026, 9:06 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the Linux kernel to include the fix for setup_geo().
- Validate nc and fc values immediately after extraction.
- Return -1 if nc or fc is zero.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-46161.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-46161 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-46161
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-46161 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-46161 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Jun. 09, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-369 Added CPE Configuration OR *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:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:3.9:rc7:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:3.9:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:3.9:rc6:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:3.9:-:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:3.9:rc8:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.30 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.175 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.209 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.0.7 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.88 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.140 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.9.1 up to (excluding) 5.10.258 Added Reference Type kernel.org: https://git.kernel.org/stable/c/0b43a70394ce492274e67463326be03e0a9897c5 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/4af2e558e6fdfb972c61350653fd55d1f62b60a5 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/553e32adfa1a96b217651139a3f8c3b92b9984ac Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/913d556e4bd1b56ed822815655b82c7bb54edc51 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/9aa6d860b0930e2f72795665c42c44252a558a0c Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/9d8e03b9a2b1e8ce5c198bf3a409a629f4d02cda Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/c716ab3034f84f8a6c226814247b8c5ac9f95da1 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f9ddb621b2325eb69c95692958daf2bab4dea2c4 Types: Patch -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 01, 2026
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/0b43a70394ce492274e67463326be03e0a9897c5 Added Reference https://git.kernel.org/stable/c/553e32adfa1a96b217651139a3f8c3b92b9984ac Added Reference https://git.kernel.org/stable/c/c716ab3034f84f8a6c226814247b8c5ac9f95da1 -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2026
Action Type Old Value New Value Added 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. Added Reference https://git.kernel.org/stable/c/4af2e558e6fdfb972c61350653fd55d1f62b60a5 Added Reference https://git.kernel.org/stable/c/913d556e4bd1b56ed822815655b82c7bb54edc51 Added Reference https://git.kernel.org/stable/c/9aa6d860b0930e2f72795665c42c44252a558a0c Added Reference https://git.kernel.org/stable/c/9d8e03b9a2b1e8ce5c198bf3a409a629f4d02cda Added Reference https://git.kernel.org/stable/c/f9ddb621b2325eb69c95692958daf2bab4dea2c4