general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 10378 Comm: kworker/u4:17 Not tainted 5.0.0+ #13 kobject: 'loop1' (000000003581bbe8): kobject_uevent_env Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events_unbound flush_to_ldisc kobject: 'loop1' (000000003581bbe8): fill_kobj_path: path = '/devices/virtual/block/loop1' RIP: 0010:skb_put+0x35/0x1d0 net/core/skbuff.c:1702 Code: 89 f5 41 54 49 89 fc 53 4d 8d b4 24 b8 00 00 00 48 83 ec 08 e8 3c d8 00 fc 4c 89 f2 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 f0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 4c RSP: 0018:ffff8880531efb28 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: ffff88805501e540 RCX: ffffffff84f0268a RDX: 0000000000000017 RSI: ffffffff856f7dc4 RDI: 0000000000000000 RBP: ffff8880531efb58 R08: ffff888050428640 R09: ffffed1015d25bc8 R10: ffffed1015d25bc7 R11: ffff8880ae92de3b R12: 0000000000000000 R13: 0000000000000001 R14: 00000000000000b8 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff4fb68ba0 CR3: 00000000a56d4000 CR4: 00000000001406e0 IPVS: sh: UDP 172.20.20.170:0 - no destination available DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: skb_put_data include/linux/skbuff.h:2138 [inline] bcsp_unslip_one_byte drivers/bluetooth/hci_bcsp.c:451 [inline] bcsp_recv+0x9c4/0x13e0 drivers/bluetooth/hci_bcsp.c:612 hci_uart_tty_receive+0x22b/0x530 drivers/bluetooth/hci_ldisc.c:607 tty_ldisc_receive_buf+0x164/0x1c0 drivers/tty/tty_buffer.c:465 IPVS: sh: UDP 172.20.20.170:0 - no destination available tty_port_default_receive_buf+0x7d/0xb0 drivers/tty/tty_port.c:38 receive_buf drivers/tty/tty_buffer.c:481 [inline] flush_to_ldisc+0x228/0x390 drivers/tty/tty_buffer.c:533 kobject: 'loop0' (000000006a73f97a): kobject_uevent_env process_one_work+0x98e/0x1790 kernel/workqueue.c:2269 kobject: 'loop0' (000000006a73f97a): fill_kobj_path: path = '/devices/virtual/block/loop0' worker_thread+0x98/0xe40 kernel/workqueue.c:2415 kthread+0x357/0x430 kernel/kthread.c:253 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Modules linked in: kobject: '0:109' (000000002d84c24b): kobject_uevent_env ---[ end trace 28de295e155270cc ]--- kobject: 'loop3' (0000000028e4fdaa): kobject_uevent_env kobject: 'loop3' (0000000028e4fdaa): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: '0:109' (000000002d84c24b): fill_kobj_path: path = '/devices/virtual/bdi/0:109' RIP: 0010:skb_put+0x35/0x1d0 net/core/skbuff.c:1702 Code: 89 f5 41 54 49 89 fc 53 4d 8d b4 24 b8 00 00 00 48 83 ec 08 e8 3c d8 00 fc 4c 89 f2 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 f0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 4c kobject: '0:109' (000000002d84c24b): kobject_cleanup, parent (null) kobject: '0:109' (000000002d84c24b): calling ktype release RSP: 0018:ffff8880531efb28 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: ffff88805501e540 RCX: ffffffff84f0268a kobject: '0:109': free name kobject: 'loop2' (00000000e59d200d): kobject_uevent_env RDX: 0000000000000017 RSI: ffffffff856f7dc4 RDI: 0000000000000000 kobject: 'loop2' (00000000e59d200d): fill_kobj_path: path = '/devices/virtual/block/loop2' RBP: ffff8880531efb58 R08: ffff888050428640 R09: ffffed1015d25bc8 R10: ffffed1015d25bc7 R11: ffff8880ae92de3b R12: 0000000000000000 kobject: '0:109' (00000000ae25df76): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'loop1' (000000003581bbe8): kobject_uevent_env kobject: 'loop1' (000000003581bbe8): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: '0:109' (00000000ae25df76): kobject_uevent_env kobject: '0:109' (00000000ae25df76): fill_kobj_path: path = '/devices/virtual/bdi/0:109' R13: 0000000000000001 R14: 00000000000000b8 R15: 0000000000000000 kobject: 'loop3' (0000000028e4fdaa): kobject_uevent_env FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 kobject: 'loop3' (0000000028e4fdaa): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (000000006a73f97a): kobject_uevent_env CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kobject: 'loop0' (000000006a73f97a): fill_kobj_path: path = '/devices/virtual/block/loop0' CR2: 000000c430537000 CR3: 00000000a56d4000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600