RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004cf2e0 R14: 00000000004c55ac R15: 0000000000000000 kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 30746 Comm: syz-executor4 Not tainted 4.19.0-rc2+ #6 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kvm_lapic_hv_timer_in_use+0x56/0xd0 arch/x86/kvm/lapic.c:1609 kobject: 'loop5' (00000000f2464fb7): kobject_uevent_env Code: c1 ea 03 80 3c 02 00 75 7a 48 8b 9b e0 03 00 00 e8 7f 77 66 00 48 8d 7b 7c 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 04 84 c0 75 51 0f b6 5b 7c RSP: 0018:ffff8800b3f2ef78 EFLAGS: 00010207 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90003ada000 RDX: 000000000000000f RSI: ffffffff811857c1 RDI: 000000000000007c RBP: ffff8800b3f2ef80 R08: ffff8800b3f201c0 R09: ffffed00167f5e64 kobject: 'loop5' (00000000f2464fb7): fill_kobj_path: path = '/devices/virtual/block/loop5' R10: ffffed00167f5e64 R11: ffff8800b3faf327 R12: 0000000000000000 R13: 1ffff100167e5df6 R14: 0000000000000000 R15: ffff8800b3fa9820 FS: 00007f95cf569700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000721318 CR3: 00000001867ab000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kvm_arch_vcpu_load+0x516/0x970 arch/x86/kvm/x86.c:3128 kobject: 'loop6' (00000000ae5b1d4e): kobject_uevent_env kvm_sched_in+0x82/0xa0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3975 __fire_sched_in_preempt_notifiers kernel/sched/core.c:2481 [inline] fire_sched_in_preempt_notifiers kernel/sched/core.c:2487 [inline] finish_task_switch+0x56e/0x900 kernel/sched/core.c:2679 context_switch kernel/sched/core.c:2828 [inline] __schedule+0x874/0x1ed0 kernel/sched/core.c:3473 preempt_schedule_irq+0x87/0x110 kernel/sched/core.c:3700 retint_kernel+0x1b/0x2d RIP: 0010:unwind_next_frame.part.7+0x26/0x9e0 arch/x86/kernel/unwind_frame.c:282 Code: 7a 12 00 90 48 ba 00 00 00 00 00 fc ff df 55 48 89 e5 41 57 41 56 4c 8d 7f 50 41 55 41 54 4c 8d a5 38 ff ff ff 49 c1 ec 03 53 <48> 89 fb 49 8d 04 14 48 81 ec c8 00 00 00 48 c7 85 38 ff ff ff b3 RSP: 0018:ffff8800b3f2f448 EFLAGS: 00000a02 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: ffff8800b3f2f498 RCX: 0000000000000006 RDX: dffffc0000000000 RSI: ffffffff81d3ce99 RDI: ffff8800b3f2f498 RBP: ffff8800b3f2f470 R08: ffff8800b3f2f4d0 R09: ffff8800b3f201c0 R10: ffffed00167e5e9d R11: ffff8800b3f2f4ef R12: 1ffff100167e5e75 R13: 0000000000000000 R14: ffff8800b3f201c0 R15: ffff8800b3f2f4e8 unwind_next_frame+0x3e/0x50 arch/x86/kernel/unwind_frame.c:287 __save_stack_trace+0x7d/0xf0 arch/x86/kernel/stacktrace.c:44 save_stack_trace+0x1a/0x20 arch/x86/kernel/stacktrace.c:60 save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:553 kmem_cache_alloc_trace+0x152/0x750 mm/slab.c:3620 kmalloc include/linux/slab.h:513 [inline] kzalloc include/linux/slab.h:707 [inline] kvm_create_vm_debugfs arch/x86/kvm/../../../virt/kvm/kvm_main.c:613 [inline] kvm_dev_ioctl_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:3214 [inline] kvm_dev_ioctl+0xc23/0x1b10 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3241 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0x1de/0x1720 fs/ioctl.c:685 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:702 __do_sys_ioctl fs/ioctl.c:709 [inline] __se_sys_ioctl fs/ioctl.c:707 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:707 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457099 Code: fd b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f95cf568c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f95cf5696d4 RCX: 0000000000457099 RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000006 RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004cf2e0 R14: 00000000004c55ac R15: 0000000000000000 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace 5c01f82c0920e3c6 ]--- RIP: 0010:kvm_lapic_hv_timer_in_use+0x56/0xd0 arch/x86/kvm/lapic.c:1609 Code: c1 ea 03 80 3c 02 00 75 7a 48 8b 9b e0 03 00 00 e8 7f 77 66 00 48 8d 7b 7c 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 04 84 c0 75 51 0f b6 5b 7c kobject: 'loop6' (00000000ae5b1d4e): fill_kobj_path: path = '/devices/virtual/block/loop6' RSP: 0018:ffff8800b3f2ef78 EFLAGS: 00010207 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90003ada000 RDX: 000000000000000f RSI: ffffffff811857c1 RDI: 000000000000007c RBP: ffff8800b3f2ef80 R08: ffff8800b3f201c0 R09: ffffed00167f5e64 R10: ffffed00167f5e64 R11: ffff8800b3faf327 R12: 0000000000000000 R13: 1ffff100167e5df6 R14: 0000000000000000 R15: ffff8800b3fa9820 FS: 00007f95cf569700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000721318 CR3: 00000001867ab000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400