=============================================================================
BUG numa_policy (Not tainted): Poison overwritten
-----------------------------------------------------------------------------

INFO: 0xffff880146498250-0xffff880146498250. First byte 0x6a instead of 0x6b
INFO: Allocated in mpol_new+0xa3/0x140 age=46310 cpu=6 pid=32154
 __slab_alloc+0x3d3/0x445
 kmem_cache_alloc+0x29d/0x2b0
 mpol_new+0xa3/0x140
 sys_mbind+0x142/0x620
 system_call_fastpath+0x16/0x1b
INFO: Freed in __mpol_put+0x27/0x30 age=46268 cpu=6 pid=32154
 __slab_free+0x2e/0x1de
 kmem_cache_free+0x25a/0x260
 __mpol_put+0x27/0x30
 remove_vma+0x68/0x90
 exit_mmap+0x118/0x140
 mmput+0x73/0x110
 exit_mm+0x108/0x130
 do_exit+0x162/0xb90
 do_group_exit+0x4f/0xc0
 sys_exit_group+0x17/0x20
 system_call_fastpath+0x16/0x1b
INFO: Slab 0xffffea0005192600 objects=27 used=27 fp=0x          (null) flags=0x20000000004080
INFO: Object 0xffff880146498250 @offset=592 fp=0xffff88014649b9d0
