Oops: general protection fault, probably for non-canonical address 0xdffffc000000005f: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x00000000000002f8-0x00000000000002ff]
CPU: 0 UID: 0 PID: 9579 Comm: syz.7.497 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:h5_recv+0x146/0x910
Code: 18 48 c1 ea 03 48 89 54 24 28 48 89 d8 48 c1 e8 03 48 89 44 24 50 44 89 64 24 14 48 b8 00 00 00 00 00 fc ff df 48 8b 4c 24 30 <80> 3c 01 00 74 08 4c 89 ef e8 3c 56 f3 f9 4d 8b 65 00 31 ff 4c 89
RSP: 0018:ffffc90007c4fc20 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 00000000000002e8 RCX: 000000000000005f
RDX: 000000000000005e RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90007c4fd40 R08: ffff88816bb9ac1f R09: 1ffff1102d773583
R10: dffffc0000000000 R11: ffffffff8832c280 R12: 0000000000000001
R13: 00000000000002f8 R14: ffff88816bb9ac10 R15: ffffc90007c4fde0
FS:  00007f8005e3f6c0(0000) GS:ffff88818eb36000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8005e1dfc8 CR3: 00000001739ae000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 hci_uart_tty_receive+0x194/0x220
 tiocsti+0x23c/0x2c0
 tty_ioctl+0x626/0xde0
 __se_sys_ioctl+0xfc/0x170
 do_syscall_64+0xfa/0xfa0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8004f8f749
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8005e3f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f80051e6090 RCX: 00007f8004f8f749
RDX: 0000200000000140 RSI: 0000000000005412 RDI: 0000000000000028
RBP: 00007f8005013f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f80051e6128 R14: 00007f80051e6090 R15: 00007ffce02fe868
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:h5_recv+0x146/0x910
Code: 18 48 c1 ea 03 48 89 54 24 28 48 89 d8 48 c1 e8 03 48 89 44 24 50 44 89 64 24 14 48 b8 00 00 00 00 00 fc ff df 48 8b 4c 24 30 <80> 3c 01 00 74 08 4c 89 ef e8 3c 56 f3 f9 4d 8b 65 00 31 ff 4c 89
RSP: 0018:ffffc90007c4fc20 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 00000000000002e8 RCX: 000000000000005f
RDX: 000000000000005e RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90007c4fd40 R08: ffff88816bb9ac1f R09: 1ffff1102d773583
R10: dffffc0000000000 R11: ffffffff8832c280 R12: 0000000000000001
R13: 00000000000002f8 R14: ffff88816bb9ac10 R15: ffffc90007c4fde0
FS:  00007f8005e3f6c0(0000) GS:ffff8882a9f36000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ece5ac5a18 CR3: 00000001739ae000 CR4: 00000000000006f0
