syzbot

IPVS: ftp: loaded support on port[0] = 21
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
Modules linked in:
CPU: 1 PID: 7991 Comm: kworker/u5:1 Not tainted 4.14.203-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
task: ffff8880b3396380 task.stack: ffff8880b2e48000
RIP: 0010:hci_phy_link_complete_evt.isra.0+0x201/0x840 net/bluetooth/hci_event.c:4359
RSP: 0018:ffff8880b2e4fae0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff11016672d90
RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000010
RBP: ffff88809242cb10 R08: 0000000000000000 R09: 0000000000000003
R10: 0000000000000000 R11: ffff8880b3396380 R12: ffff88809242da68
R13: 00000000000000c9 R14: ffff8880b4770a4b R15: ffff8880954e62c0
FS:  0000000000000000(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4a27d9c6c0 CR3: 00000000a212f000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 hci_event_packet+0x224b/0x750f net/bluetooth/hci_event.c:5442
 hci_rx_work+0x427/0xb40 net/bluetooth/hci_core.c:4244
 process_one_work+0x793/0x14a0 kernel/workqueue.c:2116
 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250
 kthread+0x30d/0x420 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Code: fa 48 c1 ea 03 80 3c 02 00 0f 85 85 05 00 00 49 8b 9f 40 08 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 10 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 69 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 
RIP: hci_phy_link_complete_evt.isra.0+0x201/0x840 net/bluetooth/hci_event.c:4359 RSP: ffff8880b2e4fae0
---[ end trace 938d0aafcd0b8d19 ]---