================================================================== BUG: KCSAN: data-race in direct_page_fault / kvm_mmu_notifier_invalidate_range_end write to 0xffffc90015c8c188 of 8 bytes by task 14882 on cpu 0: 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_end include/linux/mmu_notifier.h:473 [inline] change_pmd_range mm/mprotect.c:277 [inline] change_pud_range mm/mprotect.c:297 [inline] change_p4d_range mm/mprotect.c:317 [inline] change_protection_range mm/mprotect.c:342 [inline] change_protection+0x1369/0x1650 mm/mprotect.c:365 mprotect_fixup+0x361/0x570 mm/mprotect.c:487 do_mprotect_pkey+0x4ba/0x600 mm/mprotect.c:613 __do_sys_mprotect mm/mprotect.c:638 [inline] __se_sys_mprotect mm/mprotect.c:635 [inline] __x64_sys_mprotect+0x44/0x50 mm/mprotect.c:635 do_syscall_64+0x71/0x120 arch/x86/entry/common.c:359 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffffc90015c8c188 of 8 bytes by task 14884 on cpu 1: 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: 1 PID: 14884 Comm: syz-executor.1 Not tainted 5.8.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================