RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004cfc28 R14: 00000000004bfd60 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: 1 PID: 14979 Comm: syz-executor0 Not tainted 4.19.0-rc4-next-20180921+ #77 kobject: 'loop5' (00000000f86cec02): kobject_uevent_env Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kvm_lapic_hv_timer_in_use+0x5c/0xe0 arch/x86/kvm/lapic.c:1622 Code: 3c 02 00 0f 85 8b 00 00 00 48 8b 9b e0 03 00 00 e8 49 fa 64 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 44 0f b6 63 kobject: 'loop5' (00000000f86cec02): fill_kobj_path: path = '/devices/virtual/block/loop5' RSP: 0018:ffff880195c56e50 EFLAGS: 00010207 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000e223000 RDX: 000000000000000f RSI: ffffffff811856e7 RDI: 000000000000007c RBP: ffff880195c56e60 R08: ffff8801bdb46180 R09: ffffed00321b1d5c R10: ffffed00321b1d5c R11: ffff880190d8eae7 R12: 0000000000000001 R13: 1ffff10032b8add2 R14: 0000000000000000 R15: ffff880190d88fe0 FS: 00007f9f58b23700(0000) GS:ffff8801dad00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f22fb548000 CR3: 00000001c5b7d000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kobject: 'loop1' (000000006fbfb2ee): kobject_uevent_env DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kvm_arch_vcpu_load+0x516/0x970 arch/x86/kvm/x86.c:3128 kvm_sched_in+0x82/0xa0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3974 kobject: 'loop1' (000000006fbfb2ee): fill_kobj_path: path = '/devices/virtual/block/loop1' __fire_sched_in_preempt_notifiers kernel/sched/core.c:2486 [inline] fire_sched_in_preempt_notifiers kernel/sched/core.c:2492 [inline] finish_task_switch+0x3d7/0x900 kernel/sched/core.c:2684 context_switch kernel/sched/core.c:2833 [inline] __schedule+0x874/0x1ed0 kernel/sched/core.c:3479 preempt_schedule_irq+0x87/0x110 kernel/sched/core.c:3706 retint_kernel+0x1b/0x2d RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:vprintk_emit+0x241/0x930 kernel/printk/printk.c:1905 Code: 48 c1 ea 03 80 3c 02 00 0f 85 63 06 00 00 48 83 3d c3 83 0e 08 00 0f 84 a8 05 00 00 e8 f8 ae 19 00 48 8b bd b0 fe ff ff 57 9d <0f> 1f 44 00 00 e8 e5 ae 19 00 31 ff 44 89 ee e8 ab af 19 00 45 84 RSP: 0018:ffff880195c57320 EFLAGS: 00000216 ORIG_RAX: ffffffffffffff13 RAX: 0000000000040000 RBX: 1ffff10032b8ae6a RCX: ffffc9000e223000 RDX: 000000000000b5eb RSI: ffffffff8163a238 RDI: 0000000000000216 RBP: ffff880195c57498 R08: ffff8801bdb46180 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff897225f0 R13: 0000000000000000 R14: ffff880195c57470 R15: ffffffff897225e8 vprintk_default+0x28/0x30 kernel/printk/printk.c:1962 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398 printk+0xa7/0xcf kernel/printk/printk.c:1995 __dynamic_pr_debug+0x149/0x1c0 lib/dynamic_debug.c:565 fill_kobj_path lib/kobject.c:151 [inline] kobject_get_path+0x1b2/0x210 lib/kobject.c:174 kobject_uevent_env+0x285/0x1370 lib/kobject_uevent.c:519 kvm_uevent_notify_change.part.33+0x2f8/0x450 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3921 kvm_uevent_notify_change arch/x86/kvm/../../../virt/kvm/kvm_main.c:3880 [inline] kvm_dev_ioctl_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:3218 [inline] kvm_dev_ioctl+0xc81/0x1ae0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3240 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: 0033:0x457679 Code: 1d 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 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f9f58b22c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f9f58b236d4 RCX: 0000000000457679 RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000006 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004cfc28 R14: 00000000004bfd60 R15: 0000000000000000 Modules linked in: ---[ end trace 09d0f41976addee3 ]--- RIP: 0010:kvm_lapic_hv_timer_in_use+0x5c/0xe0 arch/x86/kvm/lapic.c:1622 Code: 3c 02 00 0f 85 8b 00 00 00 48 8b 9b e0 03 00 00 e8 49 fa 64 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 44 0f b6 63 RSP: 0018:ffff880195c56e50 EFLAGS: 00010207 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000e223000 RDX: 000000000000000f RSI: ffffffff811856e7 RDI: 000000000000007c RBP: ffff880195c56e60 R08: ffff8801bdb46180 R09: ffffed00321b1d5c R10: ffffed00321b1d5c R11: ffff880190d8eae7 R12: 0000000000000001 kobject: 'loop3' (00000000e7dda78f): kobject_uevent_env R13: 1ffff10032b8add2 R14: 0000000000000000 R15: ffff880190d88fe0 FS: 00007f9f58b23700(0000) GS:ffff8801dad00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kobject: 'loop3' (00000000e7dda78f): fill_kobj_path: path = '/devices/virtual/block/loop3' CR2: 00007f22fb548000 CR3: 00000001c5b7d000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400