BUG: KCSAN: data-race in mas_wr_store_entry / mtree_range_walk

write to 0xffff8881046b9660 of 8 bytes by task 5724 on cpu 0:
 mas_wr_slot_store lib/maple_tree.c:3889 [inline]
 mas_wr_store_entry+0x146b/0x2d00 lib/maple_tree.c:4075
 mas_store_prealloc+0x6bf/0x960 lib/maple_tree.c:5520
 vma_iter_store mm/vma.h:470 [inline]
 commit_merge+0x441/0x740 mm/vma.c:609
 vma_expand+0x211/0x360 mm/vma.c:1024
 vma_merge_new_range+0x2cf/0x3e0 mm/vma.c:963
 mmap_region+0x887/0x16e0 mm/mmap.c:1416
 do_mmap+0x718/0xb60 mm/mmap.c:496
 vm_mmap_pgoff+0x133/0x290 mm/util.c:588
 ksys_mmap_pgoff+0xd0/0x330 mm/mmap.c:542
 x64_sys_call+0x1884/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:10
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
value changed: 0x00007faf77724fff -> 0x00007faf77703fff