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BUG: KCSAN: data-race in direct_page_fault / kvm_mmu_notifier_invalidate_range_end

read-write to 0xffffc90000f3a1b0 of 8 bytes by task 1180 on cpu 1:
 kvm_mmu_notifier_invalidate_range_end+0x2e/0x90 arch/x86/kvm/../../../virt/kvm/kvm_main.c:507
 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_end include/linux/mmu_notifier.h:479 [inline]
 unmap_vmas+0x11f/0x150 mm/memory.c:1506
 unmap_region+0x149/0x1e0 mm/mmap.c:2678
 __do_munmap+0xe79/0x1310 mm/mmap.c:2910
 do_munmap mm/mmap.c:2921 [inline]
 munmap_vma_range mm/mmap.c:600 [inline]
 mmap_region+0x5ab/0x13f0 mm/mmap.c:1752
 do_mmap+0x77d/0xc90 mm/mmap.c:1583
 vm_mmap_pgoff+0xe5/0x170 mm/util.c:507
 ksys_mmap_pgoff+0x2a8/0x380 mm/mmap.c:1634
 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

read to 0xffffc90000f3a1b0 of 8 bytes by task 1170 on cpu 0:
 direct_page_fault+0x1c5/0x770 arch/x86/kvm/mmu/mmu.c:3702
 kvm_tdp_page_fault+0x92/0xa0 arch/x86/kvm/mmu/mmu.c:3790
 kvm_mmu_do_page_fault arch/x86/kvm/mmu.h:112 [inline]
 kvm_mmu_page_fault+0xca/0x3c0 arch/x86/kvm/mmu/mmu.c:5059
 handle_ept_violation+0x277/0x350 arch/x86/kvm/vmx/vmx.c:5357
 vmx_handle_exit+0x2fd/0x7e0 arch/x86/kvm/vmx/vmx.c:6068
 vcpu_enter_guest+0x1978/0x2390 arch/x86/kvm/x86.c:9025
 vcpu_run+0x26e/0x730 arch/x86/kvm/x86.c:9090
 kvm_arch_vcpu_ioctl_run+0x362/0x660 arch/x86/kvm/x86.c:9307
 kvm_vcpu_ioctl+0x562/0x8f0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3234
 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+0x44/0xa9

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 1170 Comm: syz-executor.4 Not tainted 5.10.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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