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 kobject: 'loop4' (00000000240023eb): kobject_uevent_env CPU: 1 PID: 19030 Comm: syz-executor2 Not tainted 4.19.0-rc4+ #248 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:1622 Code: c1 ea 03 80 3c 02 00 75 7a 48 8b 9b e0 03 00 00 e8 cf 7a 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:ffff8801d836ebe8 EFLAGS: 00010207 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90002855000 kobject: 'loop4' (00000000240023eb): fill_kobj_path: path = '/devices/virtual/block/loop4' RDX: 000000000000000f RSI: ffffffff811859b1 RDI: 000000000000007c RBP: ffff8801d836ebf0 R08: ffff8801cd5006c0 R09: ffffed00328d8c04 R10: ffffed00328d8c04 R11: ffff8801946c6027 R12: 0000000000000001 R13: 1ffff1003b06dd84 R14: 0000000000000000 R15: ffff8801946c0520 FS: 00007fcb8c854700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 kobject: 'loop0' (0000000046a37a66): kobject_uevent_env CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000720b04 CR3: 00000001b9e39000 CR4: 00000000001426e0 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 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 kobject: 'loop0' (0000000046a37a66): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000093932c6): kobject_uevent_env kobject: 'loop5' (00000000093932c6): fill_kobj_path: path = '/devices/virtual/block/loop5' context_switch kernel/sched/core.c:2828 [inline] __schedule+0x874/0x1ed0 kernel/sched/core.c:3473 kobject: 'loop1' (000000005699240c): kobject_uevent_env kobject: 'loop1' (000000005699240c): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (00000000093932c6): kobject_uevent_env preempt_schedule_irq+0x87/0x110 kernel/sched/core.c:3700 retint_kernel+0x1b/0x2d kobject: 'loop5' (00000000093932c6): fill_kobj_path: path = '/devices/virtual/block/loop5' RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:lock_acquire+0x268/0x520 kernel/locking/lockdep.c:3903 Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 7f 34 f1 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 RSP: 0018:ffff8801d836f0b0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: 1ffff1003b06de1b RCX: 0000000000000000 RDX: 1ffffffff12a453d RSI: 0000000000000000 RDI: 0000000000000286 kobject: 'loop0' (0000000046a37a66): kobject_uevent_env RBP: ffff8801d836f1a0 R08: ffff8801cd500f88 R09: 0000000000000001 R10: ffff8801cd500f68 R11: 778e7a310d3d788f R12: ffff8801cd5006c0 R13: 0000000000000002 R14: 0000000000000000 R15: 0000000000000000 kobject: 'loop0' (0000000046a37a66): fill_kobj_path: path = '/devices/virtual/block/loop0' rcu_lock_acquire include/linux/rcupdate.h:244 [inline] rcu_read_lock include/linux/rcupdate.h:629 [inline] d_alloc_parallel+0x1ed/0x1f40 fs/dcache.c:2449 kobject: 'loop3' (000000007045af79): kobject_uevent_env kobject: 'loop3' (000000007045af79): fill_kobj_path: path = '/devices/virtual/block/loop3' __lookup_slow+0x1e6/0x540 fs/namei.c:1654 lookup_one_len+0x1d8/0x220 fs/namei.c:2543 start_creating+0xf2/0x220 fs/debugfs/inode.c:308 __debugfs_create_file+0x63/0x400 fs/debugfs/inode.c:347 debugfs_create_file+0x57/0x70 fs/debugfs/inode.c:399 kvm_create_vm_debugfs arch/x86/kvm/../../../virt/kvm/kvm_main.c:620 [inline] kvm_dev_ioctl_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:3214 [inline] kvm_dev_ioctl+0xbe0/0x1b10 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: 0033:0x457679 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:00007fcb8c853c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fcb8c8546d4 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 21e2d8d1dd5ccbc8 ]--- RIP: 0010:kvm_lapic_hv_timer_in_use+0x56/0xd0 arch/x86/kvm/lapic.c:1622 Code: c1 ea 03 80 3c 02 00 75 7a 48 8b 9b e0 03 00 00 e8 cf 7a 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:ffff8801d836ebe8 EFLAGS: 00010207 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90002855000 RDX: 000000000000000f RSI: ffffffff811859b1 RDI: 000000000000007c RBP: ffff8801d836ebf0 R08: ffff8801cd5006c0 R09: ffffed00328d8c04 R10: ffffed00328d8c04 R11: ffff8801946c6027 R12: 0000000000000001 R13: 1ffff1003b06dd84 R14: 0000000000000000 R15: ffff8801946c0520 FS: 00007fcb8c854700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000720b04 CR3: 00000001b9e39000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400