PT-2026-44284 · Linux · Linux

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

Mitre

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.

Related Identifiers

CVE-2026-46161

Affected Products

Linux

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-46161 · Security Note
• https://git.kernel.org/stable/c/4af2e558e6fdfb972c61350653fd55d1f62b60a5 · Note
• https://git.kernel.org/stable/c/913d556e4bd1b56ed822815655b82c7bb54edc51 · Note
• https://git.kernel.org/stable/c/9d8e03b9a2b1e8ce5c198bf3a409a629f4d02cda · Note
• https://git.kernel.org/stable/c/9aa6d860b0930e2f72795665c42c44252a558a0c · Note
• https://git.kernel.org/stable/c/f9ddb621b2325eb69c95692958daf2bab4dea2c4 · Note