================================================================== BUG: KCSAN: data-race in kvm_mmu_notifier_invalidate_range_end / tdp_page_fault read to 0xffffc900010fa150 of 8 bytes by task 11526 on cpu 1: tdp_page_fault+0x204/0x570 arch/x86/kvm/mmu.c:4299 kvm_mmu_page_fault+0xf9/0xbc0 arch/x86/kvm/mmu.c:5539 handle_ept_violation+0x1e5/0x340 arch/x86/kvm/vmx/vmx.c:5199 vmx_handle_exit+0x1c2/0xd60 arch/x86/kvm/vmx/vmx.c:5943 vcpu_enter_guest+0xc1f/0x3830 arch/x86/kvm/x86.c:8255 vcpu_run arch/x86/kvm/x86.c:8319 [inline] kvm_arch_vcpu_ioctl_run+0x2a2/0xdc0 arch/x86/kvm/x86.c:8526 kvm_vcpu_ioctl+0x752/0xa30 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2834 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0x991/0xc60 fs/ioctl.c:696 ksys_ioctl+0xbd/0xe0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x4c/0x60 fs/ioctl.c:718 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 write to 0xffffc900010fa150 of 8 bytes by task 11564 on cpu 0: kvm_mmu_notifier_invalidate_range_end+0x47/0xb0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:446 __mmu_notifier_invalidate_range_end+0x144/0x1e0 mm/mmu_notifier.c:222 mmu_notifier_invalidate_range_end include/linux/mmu_notifier.h:377 [inline] zap_page_range_single+0x303/0x310 mm/memory.c:1366 unmap_mapping_range_vma mm/memory.c:2635 [inline] unmap_mapping_range_tree mm/memory.c:2656 [inline] unmap_mapping_pages+0x20c/0x250 mm/memory.c:2688 unmap_mapping_range+0x51/0x60 mm/memory.c:2723 shmem_fallocate+0x6ed/0x860 mm/shmem.c:2752 vfs_fallocate+0x3be/0x650 fs/open.c:309 madvise_remove mm/madvise.c:850 [inline] madvise_vma mm/madvise.c:933 [inline] __do_sys_madvise+0x7f7/0x1150 mm/madvise.c:1121 __se_sys_madvise mm/madvise.c:1047 [inline] __x64_sys_madvise+0x4c/0x60 mm/madvise.c:1047 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 11564 Comm: syz-executor.4 Not tainted 5.4.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================