GDTBase=fffffe0000001000 IDTBase=fffffe0000000000 CR0=0000000080050033 CR3=00000001c18f4000 CR4=00000000001426e0 Sysenter RSP=fffffe0000002200 CS:RIP=0010:ffffffff87c013a0 kasan: GPF could be caused by NULL-ptr deref or user memory access EFER = 0x0000000000000d01 PAT = 0x0407050600070106 general protection fault: 0000 [#1] PREEMPT SMP KASAN *** Control State *** CPU: 1 PID: 8329 Comm: syz-executor1 Not tainted 4.19.0-rc4+ #150 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:2481 [inline] RIP: 0010:fire_sched_in_preempt_notifiers kernel/sched/core.c:2487 [inline] RIP: 0010:finish_task_switch+0x599/0x900 kernel/sched/core.c:2679 PinBased=0000003f CPUBased=b5a06dfa SecondaryExec=000000c3 Code: 89 e1 48 c1 e9 03 42 80 3c 39 00 0f 85 a7 01 00 00 4d 8b 24 24 4d 85 e4 0f 84 ad fc ff ff 49 8d 7c 24 10 48 89 f9 48 c1 e9 03 <42> 80 3c 39 00 74 a5 e8 2b cb 6c 00 eb 9e 49 8d 7d 78 48 b8 00 00 RSP: 0018:ffff880193f36e80 EFLAGS: 00010a06 RAX: 0000000000000000 RBX: ffff8801daf2cb40 RCX: 1bd5a00000000022 RDX: 0000000000003d10 RSI: ffffffff810f036e RDI: dead000000000110 RBP: ffff880193f36f68 R08: ffff8801c883e5c0 R09: ffffed00327e2b7c R10: ffffed00327e2b7c R11: ffff880193f15be7 R12: dead000000000100 R13: ffff8801b7418280 R14: 0000000000000000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8801daf00000(0063) knlGS:00000000f5f72b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007fc6f9a5f6f0 CR3: 00000001c370c000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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:decode_frame_pointer arch/x86/kernel/unwind_frame.c:184 [inline] RIP: 0010:update_stack_state+0x43b/0x690 arch/x86/kernel/unwind_frame.c:221 Code: 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 8b 9d 30 ff ff ff 41 bf 10 00 00 00 48 c7 85 28 ff ff ff 00 00 00 00 e9 03 fd ff ff <49> 8d 7e 38 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 RSP: 0018:ffff880193f37248 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: ffff880193f37478 RCX: ffff880193f37428 RDX: 1ffff100327e6e99 RSI: ffff880193f37808 RDI: ffff880193f374c8 RBP: ffff880193f37350 R08: ffff880193f374b0 R09: ffff8801c883e5c0 R10: ffffed00327e6e99 R11: ffff880193f374cf R12: 1ffff100327e6e51 R13: ffff880193f37808 R14: ffff880193f37478 R15: ffff880193f374c8 unwind_next_frame.part.7+0x1ae/0x9e0 arch/x86/kernel/unwind_frame.c:329 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 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490 kmem_cache_alloc+0x12e/0x730 mm/slab.c:3554 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 f51f8ba16bd19088 ]--- RIP: 0010:__fire_sched_in_preempt_notifiers kernel/sched/core.c:2481 [inline] RIP: 0010:fire_sched_in_preempt_notifiers kernel/sched/core.c:2487 [inline] RIP: 0010:finish_task_switch+0x599/0x900 kernel/sched/core.c:2679 Code: 89 e1 48 c1 e9 03 42 80 3c 39 00 0f 85 a7 01 00 00 4d 8b 24 24 4d 85 e4 0f 84 ad fc ff ff 49 8d 7c 24 10 48 89 f9 48 c1 e9 03 <42> 80 3c 39 00 74 a5 e8 2b cb 6c 00 eb 9e 49 8d 7d 78 48 b8 00 00 EntryControls=0000d1ff ExitControls=002fefff RSP: 0018:ffff880193f36e80 EFLAGS: 00010a06 RAX: 0000000000000000 RBX: ffff8801daf2cb40 RCX: 1bd5a00000000022 RDX: 0000000000003d10 RSI: ffffffff810f036e RDI: dead000000000110 RBP: ffff880193f36f68 R08: ffff8801c883e5c0 R09: ffffed00327e2b7c R10: ffffed00327e2b7c R11: ffff880193f15be7 R12: dead000000000100 R13: ffff8801b7418280 R14: 0000000000000000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8801daf00000(0063) knlGS:00000000f5f72b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007fc6f9a5f6f0 CR3: 00000001c370c000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ExceptionBitmap=00060042 PFECmask=00000000 PFECmatch=00000000