==================================================================
BUG: KCSAN: data-race in kvm_mmu_notifier_invalidate_range_end / kvm_mmu_notifier_invalidate_range_start

write to 0xffffc9000af72078 of 8 bytes by task 21020 on cpu 0:
 kvm_mmu_notifier_invalidate_range_start+0x67/0x300 arch/x86/kvm/../../../virt/kvm/kvm_main.c:488
 mn_hlist_invalidate_range_start mm/mmu_notifier.c:493 [inline]
 __mmu_notifier_invalidate_range_start+0x24a/0x440 mm/mmu_notifier.c:548
 mmu_notifier_invalidate_range_start include/linux/mmu_notifier.h:453 [inline]
 try_to_unmap_one+0x3b7/0x1770 mm/rmap.c:1440
 rmap_walk_anon+0x26b/0x5a0 mm/rmap.c:1882
 try_to_unmap+0x230/0x310 mm/rmap.c:1963
 __unmap_and_move+0x376/0x6a0 mm/migrate.c:1128
 unmap_and_move+0x131/0x690 mm/migrate.c:1200
 migrate_pages+0x2f7/0xfb0 mm/migrate.c:1472
 compact_zone+0x1617/0x1e60 mm/compaction.c:2365
 compact_node+0xe4/0x1e0 mm/compaction.c:2641
 compact_nodes mm/compaction.c:2657 [inline]
 sysctl_compaction_handler+0x47/0x90 mm/compaction.c:2678
 proc_sys_call_handler+0x3dd/0x530 fs/proc/proc_sysctl.c:591
 proc_sys_write+0x1e/0x30 fs/proc/proc_sysctl.c:617
 call_write_iter include/linux/fs.h:1977 [inline]
 new_sync_write fs/read_write.c:518 [inline]
 vfs_write+0x6f9/0x7e0 fs/read_write.c:605
 ksys_write+0xce/0x180 fs/read_write.c:658
 __do_sys_write fs/read_write.c:670 [inline]
 __se_sys_write fs/read_write.c:667 [inline]
 __x64_sys_write+0x3e/0x50 fs/read_write.c:667
 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffffc9000af72078 of 8 bytes by task 21015 on cpu 1:
 kvm_mmu_notifier_invalidate_range_end+0x6c/0xa0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:540
 mn_hlist_invalidate_end mm/mmu_notifier.c:583 [inline]
 __mmu_notifier_invalidate_range_end+0x18e/0x210 mm/mmu_notifier.c:603
 mmu_notifier_invalidate_range_end include/linux/mmu_notifier.h:479 [inline]
 try_to_unmap_one+0x12e4/0x1770 mm/rmap.c:1729
 rmap_walk_anon+0x26b/0x5a0 mm/rmap.c:1882
 try_to_unmap+0x230/0x310 mm/rmap.c:1963
 __unmap_and_move+0x376/0x6a0 mm/migrate.c:1128
 unmap_and_move+0x131/0x690 mm/migrate.c:1200
 migrate_pages+0x2f7/0xfb0 mm/migrate.c:1472
 compact_zone+0x1617/0x1e60 mm/compaction.c:2365
 compact_node+0xe4/0x1e0 mm/compaction.c:2641
 compact_nodes mm/compaction.c:2657 [inline]
 sysctl_compaction_handler+0x47/0x90 mm/compaction.c:2678
 proc_sys_call_handler+0x3dd/0x530 fs/proc/proc_sysctl.c:591
 proc_sys_write+0x1e/0x30 fs/proc/proc_sysctl.c:617
 call_write_iter include/linux/fs.h:1977 [inline]
 new_sync_write fs/read_write.c:518 [inline]
 vfs_write+0x6f9/0x7e0 fs/read_write.c:605
 ksys_write+0xce/0x180 fs/read_write.c:658
 __do_sys_write fs/read_write.c:670 [inline]
 __se_sys_write fs/read_write.c:667 [inline]
 __x64_sys_write+0x3e/0x50 fs/read_write.c:667
 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 21015 Comm: syz-executor.5 Not tainted 5.12.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
==================================================================