Bluetooth: Unknown HCI packet type 43
Bluetooth: Unknown HCI packet type 5e
Bluetooth: Unknown HCI packet type 50
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: 0 PID: 6863 Comm: kworker/u4:2 Not tainted 4.14.174-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound flush_to_ldisc
task: ffff888079a44200 task.stack: ffff8880a5140000
RIP: 0010:skb_put+0x2b/0x1a0 net/core/skbuff.c:1694
RSP: 0018:ffff8880a5147b90 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff888092a62e40 RCX: 0000000000000000
RDX: 0000000000000019 RSI: 0000000000000002 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000025 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000002
R13: ffff888092a62e50 R14: 00000000000000c8 R15: ffff8880609e96a4
FS:  0000000000000000(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004105e0 CR3: 000000005a994000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 skb_put_data include/linux/skbuff.h:2097 [inline]
 ll_recv+0x4fe/0x1040 drivers/bluetooth/hci_ll.c:416
 hci_uart_tty_receive+0x1ec/0x4c0 drivers/bluetooth/hci_ldisc.c:616
 tty_ldisc_receive_buf+0x12e/0x170 drivers/tty/tty_buffer.c:459
 tty_port_default_receive_buf+0x6e/0xa0 drivers/tty/tty_port.c:37
 receive_buf drivers/tty/tty_buffer.c:475 [inline]
 flush_to_ldisc+0x1dd/0x3f0 drivers/tty/tty_buffer.c:527
 process_one_work+0x813/0x1540 kernel/workqueue.c:2116
 worker_thread+0x5d1/0x1070 kernel/workqueue.c:2250
 kthread+0x30d/0x420 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Code: 41 56 41 55 41 54 41 89 f4 55 48 89 fd 4c 8d b5 c8 00 00 00 53 e8 46 0a 61 fc 4c 89 f2 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 f0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 
RIP: skb_put+0x2b/0x1a0 net/core/skbuff.c:1694 RSP: ffff8880a5147b90
---[ end trace 491b0104c6782ad1 ]---