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 v5.10.102 by commit db3f3636e4aed2cba3e4e7897a053323f7a62249, it was introduced in version v4.5 by commit e9b61f19858a5d6c42ce2298cf138279375d0d9b. For more details please see the references link.