CVE-2026-46161
md/raid10: fix divide-by-zero in setup_geo() with zero far_copies
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
5th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 28, 2026 |
| Last Updated | Jun 1, 2026 |
Stay Ahead of the Next One
Get instant alerts for linux linux
Be the first to know when new unknown vulnerabilities affecting linux linux are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
Linux / Linux
475901aff15841fb0a81e7546517407779a9b061 < 0b43a70394ce492274e67463326be03e0a9897c5 475901aff15841fb0a81e7546517407779a9b061 < c716ab3034f84f8a6c226814247b8c5ac9f95da1 475901aff15841fb0a81e7546517407779a9b061 < 553e32adfa1a96b217651139a3f8c3b92b9984ac 475901aff15841fb0a81e7546517407779a9b061 < 4af2e558e6fdfb972c61350653fd55d1f62b60a5 475901aff15841fb0a81e7546517407779a9b061 < 9d8e03b9a2b1e8ce5c198bf3a409a629f4d02cda 475901aff15841fb0a81e7546517407779a9b061 < 913d556e4bd1b56ed822815655b82c7bb54edc51 475901aff15841fb0a81e7546517407779a9b061 < f9ddb621b2325eb69c95692958daf2bab4dea2c4 475901aff15841fb0a81e7546517407779a9b061 < 9aa6d860b0930e2f72795665c42c44252a558a0c
Linux / Linux
3.9
References
git.kernel.org: https://git.kernel.org/stable/c/0b43a70394ce492274e67463326be03e0a9897c5 git.kernel.org: https://git.kernel.org/stable/c/c716ab3034f84f8a6c226814247b8c5ac9f95da1 git.kernel.org: https://git.kernel.org/stable/c/553e32adfa1a96b217651139a3f8c3b92b9984ac git.kernel.org: https://git.kernel.org/stable/c/4af2e558e6fdfb972c61350653fd55d1f62b60a5 git.kernel.org: https://git.kernel.org/stable/c/9d8e03b9a2b1e8ce5c198bf3a409a629f4d02cda git.kernel.org: https://git.kernel.org/stable/c/913d556e4bd1b56ed822815655b82c7bb54edc51 git.kernel.org: https://git.kernel.org/stable/c/f9ddb621b2325eb69c95692958daf2bab4dea2c4 git.kernel.org: https://git.kernel.org/stable/c/9aa6d860b0930e2f72795665c42c44252a558a0c