slab_pre_alloc_hook mm/slab.h:421 [inline]
 slab_alloc_node mm/slab.c:3297 [inline]
 kmem_cache_alloc_node+0x56/0x780 mm/slab.c:3640
 __alloc_skb+0x9c/0x500 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:980 [inline]
 bt_skb_alloc include/net/bluetooth/bluetooth.h:336 [inline]
 ll_recv+0x3cf/0x1010 drivers/bluetooth/hci_ll.c:516
 hci_uart_tty_receive+0x1f4/0x4d0 drivers/bluetooth/hci_ldisc.c:603
 tiocsti drivers/tty/tty_io.c:2186 [inline]
 tty_ioctl+0xded/0x1320 drivers/tty/tty_io.c:2572
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 16876 Comm: kworker/u4:2 Not tainted 4.14.130 #24
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound flush_to_ldisc
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684
task: ffff888098bec200 task.stack: ffff88806ca20000
RIP: 0010:skb_put+0x31/0x1c0 net/core/skbuff.c:1694
RSP: 0018:ffff88806ca27b48 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff88808ad4f140 RCX: 0000000000000000
RDX: 0000000000000019 RSI: 0000000000000003 RDI: 0000000000000000
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
RBP: ffff88806ca27b70 R08: 0000000000000025 R09: ffff888098becb40
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
R13: 0000000000000003 R14: ffff888090db4062 R15: 00000000000000c8
FS:  0000000000000000(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
RIP: 0033:0x459519
CR2: 00007f62780b5db8 CR3: 000000007e264000 CR4: 00000000001426e0
RSP: 002b:00007fccec836c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
RAX: ffffffffffffffda RBX: 00007fccec836c90 RCX: 0000000000459519
Call Trace:
RDX: 0000000020000080 RSI: 0000000000005412 RDI: 0000000000000003
 skb_put_data include/linux/skbuff.h:2079 [inline]
 ll_recv+0x501/0x1010 drivers/bluetooth/hci_ll.c:416
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
 hci_uart_tty_receive+0x1f4/0x4d0 drivers/bluetooth/hci_ldisc.c:603
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fccec8376d4
R13: 00000000004c3d21 R14: 00000000004d7b50 R15: 0000000000000004
 tty_ldisc_receive_buf+0x14d/0x1a0 drivers/tty/tty_buffer.c:459
Bluetooth: Can't allocate mem for new packet
 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
kobject: 'loop5' (ffff8880a4add260): kobject_uevent_env
Code: 41 56 41 55 41 89 f5 41 54 49 89 fc 4d 8d bc 24 c8 00 00 00 53 e8 b0 fc 8e fc 4c 89 fa 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 
kobject: 'loop5' (ffff8880a4add260): fill_kobj_path: path = '/devices/virtual/block/loop5'
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: ffff88806ca27b48
net_ratelimit: 19 callbacks suppressed
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
---[ end trace 43f36dfeaf5113db ]---