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BUG: KCSAN: data-race in direct_page_fault / kvm_mmu_notifier_invalidate_range_end

write to 0xffffc90003f92188 of 8 bytes by task 11324 on cpu 1:
 kvm_mmu_notifier_invalidate_range_end+0x39/0xa0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:453
 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:480 [inline]
 __split_huge_pmd+0x6a1/0x910 mm/huge_memory.c:2248
 split_huge_pmd_address+0x15b/0x180 mm/huge_memory.c:2273
 vma_adjust_trans_huge+0xac/0x210 mm/huge_memory.c:2289
 __vma_adjust+0x420/0x14c0 mm/mmap.c:794
 __split_vma+0x24b/0x320 include/linux/mm.h:2518
 __do_munmap+0x2de/0xbf0 mm/mmap.c:2791
 __vm_munmap mm/mmap.c:2856 [inline]
 __do_sys_munmap mm/mmap.c:2882 [inline]
 __se_sys_munmap+0x93/0x100 mm/mmap.c:2878
 __x64_sys_munmap+0x2d/0x40 mm/mmap.c:2878
 do_syscall_64+0x71/0x120 arch/x86/entry/common.c:359
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

read to 0xffffc90003f92188 of 8 bytes by task 11309 on cpu 0:
 direct_page_fault+0x162/0x670 arch/x86/kvm/mmu/mmu.c:4121
 kvm_tdp_page_fault+0x92/0xa0 arch/x86/kvm/mmu/mmu.c:4208
 kvm_mmu_do_page_fault arch/x86/kvm/mmu.h:115 [inline]
 kvm_mmu_page_fault+0xca/0x410 arch/x86/kvm/mmu/mmu.c:5422
 handle_ept_violation+0x232/0x5c0 arch/x86/kvm/vmx/vmx.c:5314
 vmx_handle_exit+0x554/0xb40 arch/x86/kvm/vmx/vmx.c:6093
 vcpu_enter_guest+0x189c/0x23e0 arch/x86/kvm/x86.c:8594
 vcpu_run+0x26e/0x750 arch/x86/kvm/x86.c:8659
 kvm_arch_vcpu_ioctl_run+0x38d/0x690 arch/x86/kvm/x86.c:8880
 kvm_vcpu_ioctl+0x565/0x950 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3166
 vfs_ioctl fs/ioctl.c:48 [inline]
 ksys_ioctl fs/ioctl.c:753 [inline]
 __do_sys_ioctl fs/ioctl.c:762 [inline]
 __se_sys_ioctl+0xc9/0x130 fs/ioctl.c:760
 __x64_sys_ioctl+0x3f/0x50 fs/ioctl.c:760
 do_syscall_64+0x71/0x120 arch/x86/entry/common.c:359
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 11309 Comm: syz-executor.4 Not tainted 5.8.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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