R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004
R13: 0000000000000582 R14: 00000000004c8177 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
Modules linked in:
CPU: 1 PID: 2319 Comm: kworker/u4:3 Not tainted 4.14.175-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound flush_to_ldisc
task: ffff8880a14ec600 task.stack: ffff8880a1570000
RIP: 0010:skb_put+0x2b/0x1a0 net/core/skbuff.c:1694
RSP: 0018:ffff8880a1577b98 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff8880981ec340 RCX: 0000000000000000
RDX: 0000000000000019 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff8880981ec438 R09: ffffffff8a085e90
R10: ffff8880a14ecf20 R11: ffff8880a14ec600 R12: 0000000000000001
R13: 000000000000000a R14: 00000000000000c8 R15: 000000000000005e
FS:  0000000000000000(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc5293ac20 CR3: 00000000a4991000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 skb_put_data include/linux/skbuff.h:2097 [inline]
 bcsp_unslip_one_byte drivers/bluetooth/hci_bcsp.c:450 [inline]
 bcsp_recv+0x92e/0x1530 drivers/bluetooth/hci_bcsp.c:612
 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 66 e9 60 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: ffff8880a1577b98
---[ end trace 6b6e81a8300d6699 ]---
9pnet: Insufficient options for proto=fd