new mount options do not match the existing superblock, will be ignored
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
new mount options do not match the existing superblock, will be ignored
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 5 Comm: kworker/u4:0 Not tainted 4.14.226-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound flush_to_ldisc
task: ffff8880b5ff2140 task.stack: ffff8880b5ff8000
RIP: 0010:skb_tail_pointer include/linux/skbuff.h:2045 [inline]
RIP: 0010:skb_put+0x29/0x170 net/core/skbuff.c:1703
RSP: 0000:ffff8880b5fffb90 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000002 RCX: 1ffffffff10743d1
RDX: 000000000000001a RSI: 0000000000000002 RDI: 00000000000000d0
RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff8ae0af9e
R10: 0000000000145fee R11: ffff8880b5ff2140 R12: 0000000000000002
R13: dffffc0000000000 R14: ffff8880a9d61900 R15: ffff8880a379c060
FS:  0000000000000000(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005652b2a5c160 CR3: 00000000a6d51000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 skb_put_data include/linux/skbuff.h:2125 [inline]
 ll_recv+0x6e9/0x1820 drivers/bluetooth/hci_ll.c:416
 hci_uart_tty_receive+0x1ec/0x4c0 drivers/bluetooth/hci_ldisc.c:617
 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+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: 00 00 41 55 41 54 41 89 f4 55 48 89 fd 53 e8 2f 48 98 fb 48 8d bd d0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 24 01 00 00 48 8d bd c8 00 00 00 4c 8b ad d0 
RIP: skb_tail_pointer include/linux/skbuff.h:2045 [inline] RSP: ffff8880b5fffb90
RIP: skb_put+0x29/0x170 net/core/skbuff.c:1703 RSP: ffff8880b5fffb90
---[ end trace 6330c46352eba54a ]---