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BUG: KCSAN: data-race in kvm_mmu_notifier_invalidate_range_end / kvm_mmu_notifier_invalidate_range_start

write to 0xffffc90002f2e1f8 of 8 bytes by task 11872 on cpu 1:
 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+0x23a/0x390 mm/mmu_notifier.c:525
 mmu_notifier_invalidate_range_start include/linux/mmu_notifier.h:453 [inline]
 wp_page_copy+0x3b1/0x1570 mm/memory.c:2887
 do_wp_page+0x48d/0x6d0 arch/x86/include/asm/atomic.h:95
 handle_pte_fault mm/memory.c:4334 [inline]
 __handle_mm_fault mm/memory.c:4451 [inline]
 handle_mm_fault+0x1463/0x1840 mm/memory.c:4549
 do_user_addr_fault+0x60c/0xc00 arch/x86/mm/fault.c:1390
 handle_page_fault arch/x86/mm/fault.c:1475 [inline]
 exc_page_fault+0x94/0x2a0 arch/x86/mm/fault.c:1531
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:577

read to 0xffffc90002f2e1f8 of 8 bytes by task 11869 on cpu 0:
 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:560 [inline]
 __mmu_notifier_invalidate_range_end+0x18e/0x210 mm/mmu_notifier.c:580
 mmu_notifier_invalidate_range_only_end include/linux/mmu_notifier.h:486 [inline]
 wp_page_copy+0x9df/0x1570 mm/memory.c:2965
 do_wp_page+0x48d/0x6d0 arch/x86/include/asm/atomic.h:95
 handle_pte_fault mm/memory.c:4334 [inline]
 __handle_mm_fault mm/memory.c:4451 [inline]
 handle_mm_fault+0x1463/0x1840 mm/memory.c:4549
 do_user_addr_fault+0x60c/0xc00 arch/x86/mm/fault.c:1390
 handle_page_fault arch/x86/mm/fault.c:1475 [inline]
 exc_page_fault+0x94/0x2a0 arch/x86/mm/fault.c:1531
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:577

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 11869 Comm: syz-executor.4 Not tainted 5.12.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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