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: 7090 Comm: kworker/u4:5 Not tainted 4.14.128 #22
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound flush_to_ldisc
task: ffff888061a94480 task.stack: ffff888061a98000
RIP: 0010:skb_put+0x31/0x1c0 net/core/skbuff.c:1694
RSP: 0018:ffff888061a9fb48 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff88808b250dc0 RCX: ffff888090d85300
RDX: 0000000000000019 RSI: 0000000000000003 RDI: 0000000000000000
RBP: ffff888061a9fb70 R08: 000000000000268c R09: ffffffff88c8b8a0
R10: 0000000000000006 R11: ffff888061a94480 R12: 0000000000000000
R13: 0000000000000003 R14: ffff8880918904e0 R15: 00000000000000c8
kobject: 'loop4' (ffff8880a49ea220): kobject_uevent_env
FS:  0000000000000000(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000
kobject: 'loop4' (ffff8880a49ea220): fill_kobj_path: path = '/devices/virtual/block/loop4'
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fedae93d028 CR3: 0000000067c1f000 CR4: 00000000001426f0
Call Trace:
 skb_put_data include/linux/skbuff.h:2079 [inline]
 ll_recv+0x501/0x1010 drivers/bluetooth/hci_ll.c:416
 hci_uart_tty_receive+0x1f4/0x4d0 drivers/bluetooth/hci_ldisc.c:603
 tty_ldisc_receive_buf+0x14d/0x1a0 drivers/tty/tty_buffer.c:459
 tty_port_default_receive_buf+0x73/0xa0 drivers/tty/tty_port.c:37
mmap: syz-executor.4 (24860): VmData 18665472 exceed data ulimit 7. Update limits or use boot option ignore_rlimit_data.
 receive_buf drivers/tty/tty_buffer.c:475 [inline]
 flush_to_ldisc+0x1ec/0x400 drivers/tty/tty_buffer.c:527
 process_one_work+0x863/0x1600 kernel/workqueue.c:2114
kobject: 'loop4' (ffff8880a49ea220): kobject_uevent_env
 worker_thread+0x5d9/0x1050 kernel/workqueue.c:2248
 kthread+0x319/0x430 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
kobject: 'loop4' (ffff8880a49ea220): fill_kobj_path: path = '/devices/virtual/block/loop4'
Code: 41 56 41 55 41 89 f5 41 54 49 89 fc 4d 8d bc 24 c8 00 00 00 53 e8 b0 0c 8f fc 4c 89 fa 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 
RIP: skb_put+0x31/0x1c0 net/core/skbuff.c:1694 RSP: ffff888061a9fb48
---[ end trace 3020bcb8990f7267 ]---