R13: 00000000004c06e7 R14: 00000000004d22d0 R15: 0000000000000005
kasan: CONFIG_KASAN_INLINE enabled
Bluetooth: Invalid header checksum
kasan: GPF could be caused by NULL-ptr deref or user memory access
audit: type=1326 audit(1549452298.543:114): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=29217 comm="syz-executor3" exe="/root/syz-executor3" sig=31 arch=c000003e syscall=228 compat=0 ip=0x45ac9a code=0xffff0000
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 12746 Comm: kworker/0:5 Not tainted 5.0.0-rc5 #60
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events hci_uart_write_work
RIP: 0010:hci_uart_write_work+0x1b6/0x710 drivers/bluetooth/hci_ldisc.c:180
Code: 0f 85 6a 04 00 00 49 8b b4 24 c8 00 00 00 4c 89 ef e8 ce 9c 53 02 89 c6 48 8b 45 d0 48 8d b8 5c 10 00 00 48 89 f8 48 c1 e8 03 <0f> b6 14 18 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 1d
RSP: 0018:ffff888053857cb0 EFLAGS: 00010203
RAX: 000000000000020b RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 000000000000105c
RBP: ffff888053857d30 R08: ffff8880548746c0 R09: ffff888054874f88
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88805276d2c0
R13: ffff88804f7bc980 R14: ffff88809e9448a8 R15: ffff88805276d330
FS:  0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000016500b8 CR3: 000000009b0ab000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 process_one_work+0x98e/0x1790 kernel/workqueue.c:2173
 worker_thread+0x98/0xe40 kernel/workqueue.c:2319
 kthread+0x357/0x430 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
---[ end trace 3b5865fb809d2d14 ]---
kobject: '(null)' (00000000325fe036): kobject_cleanup, parent           (null)
RIP: 0010:hci_uart_write_work+0x1b6/0x710 drivers/bluetooth/hci_ldisc.c:180
kobject: '(null)' (00000000325fe036): calling ktype release
Code: 0f 85 6a 04 00 00 49 8b b4 24 c8 00 00 00 4c 89 ef e8 ce 9c 53 02 89 c6 48 8b 45 d0 48 8d b8 5c 10 00 00 48 89 f8 48 c1 e8 03 <0f> b6 14 18 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 1d
netlink: 4 bytes leftover after parsing attributes in process `syz-executor1'.
kobject: 'loop3' (00000000d5e4dbf7): kobject_uevent_env
net_ratelimit: 32 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
RSP: 0018:ffff888053857cb0 EFLAGS: 00010203
kobject: 'loop3' (00000000d5e4dbf7): fill_kobj_path: path = '/devices/virtual/block/loop3'
RAX: 000000000000020b RBX: dffffc0000000000 RCX: 0000000000000000
netlink: 4 bytes leftover after parsing attributes in process `syz-executor1'.
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 000000000000105c
Bluetooth: Can't allocate HCI device
kobject: 'loop0' (00000000b38f016d): kobject_uevent_env
RBP: ffff888053857d30 R08: ffff8880548746c0 R09: ffff888054874f88
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88805276d2c0
kobject: 'loop0' (00000000b38f016d): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: '(null)' (00000000a2807035): kobject_cleanup, parent           (null)
R13: ffff88804f7bc980 R14: ffff88809e9448a8 R15: ffff88805276d330
kobject: '(null)' (00000000a2807035): calling ktype release
FS:  0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
kobject: 'loop4' (000000007cca2e02): kobject_uevent_env
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'loop4' (000000007cca2e02): fill_kobj_path: path = '/devices/virtual/block/loop4'
CR2: 0000000020000140 CR3: 000000008add8000 CR4: 00000000001406f0
kobject: 'loop3' (00000000d5e4dbf7): kobject_uevent_env
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kobject: '(null)' (0000000074ccee62): kobject_cleanup, parent           (null)
kobject: 'loop3' (00000000d5e4dbf7): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: '(null)' (0000000074ccee62): calling ktype release
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: 'loop1' (00000000525bdccd): kobject_uevent_env
kobject: 'loop1' (00000000525bdccd): fill_kobj_path: path = '/devices/virtual/block/loop1'