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: 2738 Comm: kworker/u4:4 Not tainted 4.14.160-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kobject: 'kvm' (ffff8880a641ae10): kobject_uevent_env
Workqueue: events_unbound flush_to_ldisc
task: ffff88809fbec600 task.stack: ffff88809f478000
RIP: 0010:skb_put+0x31/0x1c0 net/core/skbuff.c:1694
kobject: 'kvm' (ffff8880a641ae10): fill_kobj_path: path = '/devices/virtual/misc/kvm'
RSP: 0018:ffff88809f47fb48 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff888089ef3dc0 RCX: ffff8880901d75c0
RDX: 0000000000000019 RSI: 0000000000000004 RDI: 0000000000000000
RBP: ffff88809f47fb70 R08: 0000000000000001 R09: ffff88809f47f948
R10: 0000000000000006 R11: ffff88809fbec600 R12: 0000000000000000
R13: 0000000000000004 R14: ffff888080060960 R15: 00000000000000c8
FS:  0000000000000000(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f228000 CR3: 000000007f649000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 skb_put_data include/linux/skbuff.h:2095 [inline]
 ll_recv+0x501/0x1010 drivers/bluetooth/hci_ll.c:416
 hci_uart_tty_receive+0x1f4/0x4d0 drivers/bluetooth/hci_ldisc.c:616
 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
 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
 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
Code: 41 56 41 55 41 89 f5 41 54 49 89 fc 4d 8d bc 24 c8 00 00 00 53 e8 80 f0 46 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: ffff88809f47fb48
kobject: 'loop4' (ffff8880a419e520): kobject_uevent_env
---[ end trace 33f3b004004848d9 ]---
protocol 88fb is buggy, dev hsr_slave_0