RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 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: 'loop1' (0000000003373443): kobject_uevent_env CPU: 1 PID: 10793 Comm: syz-executor2 Not tainted 4.19.0-rc3+ #142 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 9f 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 kobject: 'loop1' (0000000003373443): fill_kobj_path: path = '/devices/virtual/block/loop1' RSP: 0018:ffff8801936a6f88 EFLAGS: 00010207 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90002a46000 RDX: 000000000000000f RSI: ffffffff811859b1 RDI: 000000000000007c RBP: ffff8801936a6f90 R08: ffff880192e78540 R09: ffffed0032809c0c R10: ffffed0032809c0c R11: ffff88019404e067 R12: 0000000000000001 R13: 1ffff100326d4df8 R14: 0000000000000000 R15: ffff880194048560 FS: 0000000000000000(0000) GS:ffff8801daf00000(0063) knlGS:00000000f5f72b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007ffdd756ff68 CR3: 00000001bda4a000 CR4: 00000000001426e0 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 context_switch kernel/sched/core.c:2828 [inline] __schedule+0x874/0x1ed0 kernel/sched/core.c:3473 preempt_schedule_common+0x1f/0xd0 kernel/sched/core.c:3597 preempt_schedule+0x4d/0x60 kernel/sched/core.c:3623 ___preempt_schedule+0x16/0x18 rcu_read_unlock_sched include/linux/rcupdate.h:766 [inline] percpu_ref_tryget_live+0x255/0x460 include/linux/percpu-refcount.h:260 css_tryget_online include/linux/cgroup.h:354 [inline] get_mem_cgroup_from_mm+0x359/0x440 mm/memcontrol.c:848 get_mem_cgroup_from_current mm/memcontrol.c:890 [inline] memcg_kmem_get_cache+0x1fc/0x9d0 mm/memcontrol.c:2537 slab_pre_alloc_hook mm/slab.h:428 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc+0x193/0x730 mm/slab.c:3552 alloc_inode+0xb2/0x190 fs/inode.c:212 new_inode_pseudo+0x71/0x1a0 fs/inode.c:903 new_inode+0x1c/0x40 fs/inode.c:932 debugfs_get_inode+0x19/0x120 fs/debugfs/inode.c:37 __debugfs_create_file+0xb5/0x400 fs/debugfs/inode.c:352 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 __do_compat_sys_ioctl fs/compat_ioctl.c:1419 [inline] __se_compat_sys_ioctl fs/compat_ioctl.c:1365 [inline] __ia32_compat_sys_ioctl+0x20e/0x630 fs/compat_ioctl.c:1365 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline] do_fast_syscall_32+0x34d/0xfb2 arch/x86/entry/common.c:397 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7f76ca9 Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 0c 24 c3 8b 1c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f5f720cc EFLAGS: 00000296 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 000000000000ae01 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 9a8e44e555164b0e ]--- 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 9f 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 kobject: 'loop5' (0000000002691f75): kobject_uevent_env RSP: 0018:ffff8801936a6f88 EFLAGS: 00010207 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90002a46000 RDX: 000000000000000f RSI: ffffffff811859b1 RDI: 000000000000007c RBP: ffff8801936a6f90 R08: ffff880192e78540 R09: ffffed0032809c0c R10: ffffed0032809c0c R11: ffff88019404e067 R12: 0000000000000001 R13: 1ffff100326d4df8 R14: 0000000000000000 R15: ffff880194048560 FS: 0000000000000000(0000) GS:ffff8801daf00000(0063) knlGS:00000000f5f72b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007ffdd756ff68 CR3: 00000001bda4a000 CR4: 00000000001426e0 kobject: 'loop5' (0000000002691f75): fill_kobj_path: path = '/devices/virtual/block/loop5'