CVE-2024-26960 mm: swap: fix race between free_swap_and_cache() and swapoff()

In the Linux kernel, the following vulnerability has been resolved: mm: swap: fix race between freeswapandcache and swapoff There was previously a theoretical window where swapoff could run and teardown a swapinfostruct while a call to freeswapandcache was running in another thread. This could...