fs/proc: task_mmu.c: don't read mapcount for migration entry
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.25 by commit a8dd0cfa37792863b6c4bf9542975212a6715d49, it was introduced in version v4.5 by commit e9b61f19858a5d6c42ce2298cf138279375d0d9b. For more details please see the references link.