oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=syz1,mems_allowed=0-1,oom_memcg=/syz1,task_memcg=/syz1,task=syz-executor1,pid=3353,uid=0 Memory cgroup out of memory: Kill process 3353 (syz-executor1) score 8542000 or sacrifice child Killed process 3353 (syz-executor1) total-vm:70928kB, anon-rss:244kB, file-rss:33792kB, shmem-rss:0kB WARNING: CPU: 1 PID: 1040 at arch/x86/kvm/mmu.c:830 mmu_spte_clear_track_bits+0x43a/0x500 arch/x86/kvm/mmu.c:830 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 1040 Comm: oom_reaper Not tainted 4.20.0+ #6 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1db/0x2d0 lib/dump_stack.c:113 panic+0x2cb/0x589 kernel/panic.c:189 __warn.cold+0x20/0x4b kernel/panic.c:544 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:290 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973 RIP: 0010:mmu_spte_clear_track_bits+0x43a/0x500 arch/x86/kvm/mmu.c:830 Code: 45 89 67 90 31 ff 44 89 e6 48 ba 00 00 00 00 00 fc ff df c6 04 10 f8 e8 14 6d 70 00 45 85 e4 0f 85 74 fd ff ff e8 86 6b 70 00 <0f> 0b e9 68 fd ff ff e8 7a 6b 70 00 4c 89 f7 e8 a2 24 f7 ff 31 f6 RSP: 0018:ffff8880a7e47600 EFLAGS: 00010293 RAX: ffff8880a78a2680 RBX: 40000000130b2c77 RCX: ffffffff811125ac RDX: 0000000000000000 RSI: ffffffff811125ba RDI: 0000000000000005 RBP: ffff8880a7e476d8 R08: ffff8880a78a2680 R09: fffff94000098597 R10: fffff94000098596 R11: ffffea00004c2cb7 R12: 0000000000000000 R13: 1ffff11014fc8ec2 R14: 00000000000130b2 R15: ffff8880a7e476b0 pte_list_remove arch/x86/kvm/mmu.c:1335 [inline] kvm_zap_rmapp.constprop.0+0x78/0xe0 arch/x86/kvm/mmu.c:1727 kvm_unmap_rmapp+0x16/0x20 arch/x86/kvm/mmu.c:1738 kvm_handle_hva_range+0x42a/0x730 arch/x86/kvm/mmu.c:1894 kvm_unmap_hva_range+0x2f/0x40 arch/x86/kvm/mmu.c:1915 kvm_mmu_notifier_invalidate_range_start+0xe2/0x260 arch/x86/kvm/../../../virt/kvm/kvm_main.c:380 __mmu_notifier_invalidate_range_start+0x1e8/0x330 mm/mmu_notifier.c:179 mmu_notifier_invalidate_range_start_nonblock include/linux/mmu_notifier.h:282 [inline] __oom_reap_task_mm+0x46a/0x6e0 mm/oom_kill.c:537 oom_reap_task_mm mm/oom_kill.c:580 [inline] oom_reap_task mm/oom_kill.c:604 [inline] oom_reaper+0x28c/0x1430 mm/oom_kill.c:642 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Kernel Offset: disabled Rebooting in 86400 seconds..