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BUG: KCSAN: data-race in direct_page_fault / kvm_mmu_notifier_invalidate_range_end

write to 0xffffc90005136070 of 8 bytes by task 11424 on cpu 0:
 kvm_mmu_notifier_invalidate_range_end+0x39/0xa0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:530
 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]
 unmap_vmas+0x145/0x170 mm/memory.c:1523
 unmap_region+0x136/0x1d0 mm/mmap.c:2674
 __do_munmap+0xed2/0x1390 mm/mmap.c:2906
 do_munmap mm/mmap.c:2917 [inline]
 munmap_vma_range mm/mmap.c:598 [inline]
 mmap_region+0x58a/0x1480 mm/mmap.c:1750
 do_mmap+0x77d/0xc90 mm/mmap.c:1581
 vm_mmap_pgoff+0xf7/0x1d0 mm/util.c:519
 ksys_mmap_pgoff+0x2a8/0x380 mm/mmap.c:1632
 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffffc90005136070 of 8 bytes by task 11407 on cpu 1:
 direct_page_fault+0x27f/0xc00 arch/x86/kvm/mmu/mmu.c:3709
 kvm_tdp_page_fault+0x92/0xa0 arch/x86/kvm/mmu/mmu.c:3806
 kvm_mmu_do_page_fault arch/x86/kvm/mmu.h:119 [inline]
 kvm_mmu_page_fault+0xca/0x3c0 arch/x86/kvm/mmu/mmu.c:5021
 handle_ept_violation+0x280/0x360 arch/x86/kvm/vmx/vmx.c:5380
 __vmx_handle_exit+0x35b/0x850 arch/x86/kvm/vmx/vmx.c:6090
 vmx_handle_exit+0x1a/0xd0 arch/x86/kvm/vmx/vmx.c:6107
 vcpu_enter_guest+0x1adf/0x2710 arch/x86/kvm/x86.c:9231
 vcpu_run+0x24f/0x6a0 arch/x86/kvm/x86.c:9297
 kvm_arch_vcpu_ioctl_run+0x476/0x860 arch/x86/kvm/x86.c:9525
 kvm_vcpu_ioctl+0x562/0x8f0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3316
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl+0xcb/0x140 fs/ioctl.c:739
 __x64_sys_ioctl+0x3f/0x50 fs/ioctl.c:739
 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: 11407 Comm: syz-executor.2 Not tainted 5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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