CVE-2026-46161

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.