EXT4-fs error (device loop1): ext4_fill_super:4355: inode #2: comm syz-executor1: iget: root inode unallocated
Bluetooth: Can't allocate HCI device
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
EXT4-fs (loop1): get root inode failed
general protection fault: 0000 [#1] PREEMPT SMP KASAN
EXT4-fs (loop1): mount failed
CPU: 1 PID: 29479 Comm: kworker/1:1 Not tainted 5.0.0-rc4+ #50
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 4e 52 96 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:ffff88804878f960 EFLAGS: 00010203
RAX: 000000000000020b RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 000000000000105c
RBP: ffff88804878f9e0 R08: 0000000000000006 R09: ffff88809ef04988
R10: ffff88809ef040c0 R11: 0000000000000000 R12: ffff888094bdc040
R13: ffff8880a965adc0 R14: ffff88808eedd0a8 R15: ffff888094bdc0b0
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe1f7454518 CR3: 0000000097044000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 process_one_work+0xd0c/0x1ce0 kernel/workqueue.c:2153
 worker_thread+0x143/0x14a0 kernel/workqueue.c:2296
 kthread+0x357/0x430 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
---[ end trace 5cfb2878dc471688 ]---
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 4e 52 96 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:ffff88804878f960 EFLAGS: 00010203
RAX: 000000000000020b RBX: dffffc0000000000 RCX: 0000000000000000
kobject: 'loop4' (000000008dc944cb): kobject_uevent_env
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 000000000000105c
kobject: 'loop4' (000000008dc944cb): fill_kobj_path: path = '/devices/virtual/block/loop4'
RBP: ffff88804878f9e0 R08: 0000000000000006 R09: ffff88809ef04988
R10: ffff88809ef040c0 R11: 0000000000000000 R12: ffff888094bdc040
R13: ffff8880a965adc0 R14: ffff88808eedd0a8 R15: ffff888094bdc0b0
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000229f928 CR3: 0000000056ea3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400