CVE-2026-46042 mm/mempolicy: fix memory leaks in weighted_interleave_auto_store()

In the Linux kernel, the following vulnerability has been resolved: mm/mempolicy: fix memory leaks in weightedinterleaveautostore weightedinterleaveautostore fetches oldwistate inside the if !input block only. This causes two memory leaks: 1. When a user writes "false" and the current mode is...