================================================================== BUG: KCSAN: data-race in kvm_mmu_notifier_invalidate_range_end / kvm_mmu_notifier_invalidate_range_end write to 0xffffc9001cd5e160 of 8 bytes by task 20420 on cpu 0: kvm_mmu_notifier_invalidate_range_end+0x63/0xb0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:448 mn_hlist_invalidate_end mm/mmu_notifier.c:560 [inline] __mmu_notifier_invalidate_range_end+0x19e/0x250 mm/mmu_notifier.c:580 mmu_notifier_invalidate_range_only_end include/linux/mmu_notifier.h:479 [inline] wp_page_copy+0xe2a/0x1050 mm/memory.c:2766 do_wp_page+0x224/0xca0 mm/memory.c:2982 handle_pte_fault mm/memory.c:4231 [inline] __handle_mm_fault+0x2d96/0x2da0 mm/memory.c:4345 handle_mm_fault+0x21c/0x540 mm/memory.c:4382 do_user_addr_fault arch/x86/mm/fault.c:1464 [inline] do_page_fault+0x48a/0xa96 arch/x86/mm/fault.c:1535 page_fault+0x34/0x40 arch/x86/entry/entry_64.S:1203 stac arch/x86/include/asm/smap.h:53 [inline] ____sys_recvmsg+0x1e8/0x350 net/socket.c:2598 ___sys_recvmsg+0xb2/0x100 net/socket.c:2627 do_recvmmsg+0x17a/0x540 net/socket.c:2725 __sys_recvmmsg+0x1f1/0x200 net/socket.c:2804 __do_sys_recvmmsg net/socket.c:2827 [inline] __se_sys_recvmmsg net/socket.c:2820 [inline] __x64_sys_recvmmsg+0x82/0xb0 net/socket.c:2820 do_syscall_64+0xc7/0x3b0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffffc9001cd5e160 of 8 bytes by task 20415 on cpu 1: kvm_mmu_notifier_invalidate_range_end+0x77/0xb0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:451 mn_hlist_invalidate_end mm/mmu_notifier.c:560 [inline] __mmu_notifier_invalidate_range_end+0x19e/0x250 mm/mmu_notifier.c:580 mmu_notifier_invalidate_range_only_end include/linux/mmu_notifier.h:479 [inline] wp_page_copy+0xe2a/0x1050 mm/memory.c:2766 do_wp_page+0x224/0xca0 mm/memory.c:2982 handle_pte_fault mm/memory.c:4231 [inline] __handle_mm_fault+0x2d96/0x2da0 mm/memory.c:4345 handle_mm_fault+0x21c/0x540 mm/memory.c:4382 do_user_addr_fault arch/x86/mm/fault.c:1464 [inline] do_page_fault+0x48a/0xa96 arch/x86/mm/fault.c:1535 page_fault+0x34/0x40 arch/x86/entry/entry_64.S:1203 stac arch/x86/include/asm/smap.h:53 [inline] ____sys_recvmsg+0x1e8/0x350 net/socket.c:2598 ___sys_recvmsg+0xb2/0x100 net/socket.c:2627 do_recvmmsg+0x17a/0x540 net/socket.c:2725 __sys_recvmmsg+0x1f1/0x200 net/socket.c:2804 __do_sys_recvmmsg net/socket.c:2827 [inline] __se_sys_recvmmsg net/socket.c:2820 [inline] __x64_sys_recvmmsg+0x82/0xb0 net/socket.c:2820 do_syscall_64+0xc7/0x3b0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 20415 Comm: syz-executor.4 Not tainted 5.7.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================