general protection fault, probably for non-canonical address 0xdffffc000000002a: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000150-0x0000000000000157]
CPU: 0 PID: 11061 Comm: syz-executor.2 Not tainted 5.7.0-rc7-next-20200529-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__lock_acquire+0xe1b/0x48b0 kernel/locking/lockdep.c:4250
Code: b8 0a 41 be 01 00 00 00 0f 86 ce 0b 00 00 89 05 eb d5 b8 0a e9 c3 0b 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 d2 48 c1 ea 03 <80> 3c 02 00 0f 85 e7 2c 00 00 49 81 3a 40 25 e7 8b 0f 84 b0 f2 ff
RSP: 0018:ffffc90017a6f7d0 EFLAGS: 00010002
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 000000000000002a RSI: 0000000000000000 RDI: 0000000000000150
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000150 R11: 0000000000000001 R12: 0000000000000000
R13: ffff88809456a100 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f0fc82b7700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000078c000 CR3: 00000000a4690000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 lock_acquire+0x1f2/0x8f0 kernel/locking/lockdep.c:4959
 down_write+0x8d/0x150 kernel/locking/rwsem.c:1531
 inode_lock include/linux/fs.h:809 [inline]
 start_creating+0xa8/0x250 fs/debugfs/inode.c:334
 __debugfs_create_file+0x62/0x400 fs/debugfs/inode.c:383
 kvm_arch_create_vcpu_debugfs+0x9f/0x200 arch/x86/kvm/debugfs.c:52
 kvm_create_vcpu_debugfs arch/x86/kvm/../../../virt/kvm/kvm_main.c:2996 [inline]
 kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:3073 [inline]
 kvm_vm_ioctl+0x1c31/0x2460 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3601
 vfs_ioctl fs/ioctl.c:48 [inline]
 ksys_ioctl+0x11a/0x180 fs/ioctl.c:753
 __do_sys_ioctl fs/ioctl.c:762 [inline]
 __se_sys_ioctl fs/ioctl.c:760 [inline]
 __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:760
 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:359
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45ca69
Code: 0d b7 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 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f0fc82b6c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00000000004e7400 RCX: 000000000045ca69
RDX: 0000000000000000 RSI: 000000000000ae41 RDI: 0000000000000004
RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000396 R14: 00000000004c6306 R15: 00007f0fc82b76d4
Modules linked in:
---[ end trace d987cf9cc5a77a7d ]---
RIP: 0010:__lock_acquire+0xe1b/0x48b0 kernel/locking/lockdep.c:4250
Code: b8 0a 41 be 01 00 00 00 0f 86 ce 0b 00 00 89 05 eb d5 b8 0a e9 c3 0b 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 d2 48 c1 ea 03 <80> 3c 02 00 0f 85 e7 2c 00 00 49 81 3a 40 25 e7 8b 0f 84 b0 f2 ff
RSP: 0018:ffffc90017a6f7d0 EFLAGS: 00010002
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 000000000000002a RSI: 0000000000000000 RDI: 0000000000000150
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000150 R11: 0000000000000001 R12: 0000000000000000
R13: ffff88809456a100 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f0fc82b7700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000078c000 CR3: 00000000a4690000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400