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: 7609 Comm: syz-executor2 Not tainted 4.19.0-rc4-next-20180921+ #77 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__fire_sched_in_preempt_notifiers kernel/sched/core.c:2486 [inline] RIP: 0010:fire_sched_in_preempt_notifiers kernel/sched/core.c:2492 [inline] RIP: 0010:finish_task_switch+0x3a4/0x900 kernel/sched/core.c:2684 Code: 3d 04 00 00 4d 8b bc 24 50 03 00 00 4d 85 ff 0f 84 ab fe ff ff 49 bc 00 00 00 00 00 fc ff df 49 8d 7f 10 48 89 f9 48 c1 e9 03 <42> 80 3c 21 00 0f 85 da 03 00 00 49 8b 4f 10 48 89 ce 48 c1 ee 03 RSP: 0018:ffff88018cbb6fb0 EFLAGS: 00010a06 RAX: 0000000000000000 RBX: ffff8801dad2cc40 RCX: 1bd5a00000000022 RDX: 0000000000040000 RSI: ffffffff810f018e RDI: dead000000000110 RBP: ffff88018cbb7098 R08: ffff8801d157a240 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801d157a240 R12: dffffc0000000000 R13: ffff8801b3326140 R14: 0000000000000000 R15: dead000000000100 FS: 00007f8890eea700(0000) GS:ffff8801dad00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f88c25c6000 CR3: 00000001c8dcd000 CR4: 00000000001426e0 Call Trace: 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:lock_release+0x504/0x970 kernel/locking/lockdep.c:3922 Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 a4 03 00 00 48 83 3d ab 64 12 08 00 0f 84 37 02 00 00 48 8b bd e0 fe 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:ffff88018cbb7378 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: 1ffff10031976e73 RCX: 1ffff1003a2af556 RDX: 1ffffffff12e44be RSI: 0000000000000002 RDI: 0000000000000282 RBP: ffff88018cbb74a0 R08: 0000000000000000 R09: ffffed003b5a5b57 R10: ffffed003b5a5b57 R11: ffff8801dad2dabb R12: ffff8801d157a240 R13: 5c6bfe5bcf2b11d2 R14: 0000000000000001 R15: ffff8801d157a240 rcu_lock_release include/linux/rcupdate.h:228 [inline] rcu_read_unlock+0x33/0x60 include/linux/rcupdate.h:661 cache_from_memcg_idx mm/slab.h:263 [inline] memcg_kmem_get_cache+0x36c/0x900 mm/memcontrol.c:2520 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:354 debugfs_create_file+0x57/0x70 fs/debugfs/inode.c:401 kvm_create_vm_debugfs arch/x86/kvm/../../../virt/kvm/kvm_main.c:619 [inline] kvm_dev_ioctl_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:3213 [inline] kvm_dev_ioctl+0xc0a/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:00007f8890ee9c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f8890eea6d4 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 92e831830012c0f4 ]--- RIP: 0010:__fire_sched_in_preempt_notifiers kernel/sched/core.c:2486 [inline] RIP: 0010:fire_sched_in_preempt_notifiers kernel/sched/core.c:2492 [inline] RIP: 0010:finish_task_switch+0x3a4/0x900 kernel/sched/core.c:2684 Code: 3d 04 00 00 4d 8b bc 24 50 03 00 00 4d 85 ff 0f 84 ab fe ff ff 49 bc 00 00 00 00 00 fc ff df 49 8d 7f 10 48 89 f9 48 c1 e9 03 <42> 80 3c 21 00 0f 85 da 03 00 00 49 8b 4f 10 48 89 ce 48 c1 ee 03 RSP: 0018:ffff88018cbb6fb0 EFLAGS: 00010a06 RAX: 0000000000000000 RBX: ffff8801dad2cc40 RCX: 1bd5a00000000022 RDX: 0000000000040000 RSI: ffffffff810f018e RDI: dead000000000110 RBP: ffff88018cbb7098 R08: ffff8801d157a240 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801d157a240 R12: dffffc0000000000 R13: ffff8801b3326140 R14: 0000000000000000 R15: dead000000000100 FS: 00007f8890eea700(0000) GS:ffff8801dad00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f88c25c6000 CR3: 00000001c8dcd000 CR4: 00000000001426e0