__dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x138/0x19c lib/dump_stack.c:53
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_failslab+0xdb/0x130 mm/failslab.c:32
 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
general protection fault: 0000 [#1] PREEMPT SMP KASAN
 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
Modules linked in:
 hci_uart_tty_receive+0x1f4/0x4d0 drivers/bluetooth/hci_ldisc.c:603
CPU: 0 PID: 2239 Comm: kworker/u4:4 Not tainted 4.14.131 #25
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound flush_to_ldisc
 tiocsti drivers/tty/tty_io.c:2186 [inline]
 tty_ioctl+0xded/0x1320 drivers/tty/tty_io.c:2572
task: ffff8880a1ec4500 task.stack: ffff8880a1ee0000
RIP: 0010:skb_put+0x31/0x1c0 net/core/skbuff.c:1694
RSP: 0018:ffff8880a1ee7b48 EFLAGS: 00010202
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684
RAX: dffffc0000000000 RBX: ffff8880a0b1ca00 RCX: 0000000000000000
RDX: 0000000000000019 RSI: 0000000000000003 RDI: 0000000000000000
RBP: ffff8880a1ee7b70 R08: 0000000000000025 R09: ffff8880a1ec4e40
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000003 R14: ffff8880a70bf6a2 R15: 00000000000000c8
FS:  0000000000000000(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000a1f0b8 CR3: 000000007c14a000 CR4: 00000000001426f0
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
Call Trace:
RIP: 0033:0x459519
 skb_put_data include/linux/skbuff.h:2079 [inline]
 ll_recv+0x501/0x1010 drivers/bluetooth/hci_ll.c:416
RSP: 002b:00007f92c24a7c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
 hci_uart_tty_receive+0x1f4/0x4d0 drivers/bluetooth/hci_ldisc.c:603
RAX: ffffffffffffffda RBX: 00007f92c24a7c90 RCX: 0000000000459519
RDX: 0000000020000080 RSI: 0000000000005412 RDI: 0000000000000003
 tty_ldisc_receive_buf+0x14d/0x1a0 drivers/tty/tty_buffer.c:459
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
 tty_port_default_receive_buf+0x73/0xa0 drivers/tty/tty_port.c:37
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f92c24a86d4
 receive_buf drivers/tty/tty_buffer.c:475 [inline]
 flush_to_ldisc+0x1ec/0x400 drivers/tty/tty_buffer.c:527
R13: 00000000004c3d21 R14: 00000000004d7b50 R15: 0000000000000004
 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 b0 fc 8e 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: ffff8880a1ee7b48
XFS (loop1): Invalid superblock magic number
Bluetooth: Can't allocate mem for new packet
kobject: 'loop3' (ffff8880a4a8c260): kobject_uevent_env
kobject: 'loop3' (ffff8880a4a8c260): fill_kobj_path: path = '/devices/virtual/block/loop3'
---[ end trace d1d3c8913096fe6d ]---