================================================================== BUG: KCSAN: data-race in direct_page_fault / kvm_mmu_notifier_invalidate_range_end write to 0xffffc90001716188 of 8 bytes by task 12099 on cpu 0: kvm_mmu_notifier_invalidate_range_end+0x39/0xa0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:509 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] 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+0x13c9/0x16b0 mm/mprotect.c:365 mprotect_fixup+0x37a/0x580 mm/mprotect.c:487 do_mprotect_pkey+0x4bb/0x5f0 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+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffffc90001716188 of 8 bytes by task 12105 on cpu 1: direct_page_fault+0x1c6/0x740 arch/x86/kvm/mmu/mmu.c:4105 kvm_tdp_page_fault+0x92/0xa0 arch/x86/kvm/mmu/mmu.c:4188 kvm_mmu_do_page_fault arch/x86/kvm/mmu.h:112 [inline] kvm_mmu_page_fault+0xca/0x410 arch/x86/kvm/mmu/mmu.c:5451 handle_ept_violation+0x2bf/0x660 arch/x86/kvm/vmx/vmx.c:5341 vmx_handle_exit+0x558/0xc30 arch/x86/kvm/vmx/vmx.c:6123 vcpu_enter_guest+0x1ada/0x2660 arch/x86/kvm/x86.c:8655 vcpu_run+0x26e/0x740 arch/x86/kvm/x86.c:8720 kvm_arch_vcpu_ioctl_run+0x38d/0x6a0 arch/x86/kvm/x86.c:8937 kvm_vcpu_ioctl+0x565/0x950 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3230 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: 1 PID: 12105 Comm: syz-executor.4 Not tainted 5.9.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================