Oops: general protection fault, probably for non-canonical address 0xdffffc000000005f: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x00000000000002f8-0x00000000000002ff]
CPU: 1 UID: 0 PID: 5930 Comm: syz.1.6 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 0c 67 b8 f9 4d 8b 65 00 31 ff 4c 89
RSP: 0018:ffffc90003c0fc40 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 00000000000002e8 RCX: 000000000000005f
RDX: 000000000000005e RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90003c0fd60 R08: ffff888107aa401f R09: 1ffff11020f54803
R10: dffffc0000000000 R11: ffffffff886ab3d0 R12: 0000000000000001
R13: 00000000000002f8 R14: ffff888107aa4010 R15: ffffc90003c0fe00
FS:  00007f3e21d9b6c0(0000) GS:ffff8881a3c18000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000003f40 CR3: 00000000235e2000 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/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3e20f8ebe9
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:00007f3e21d9b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f3e211c6180 RCX: 00007f3e20f8ebe9
RDX: 0000200000000140 RSI: 0000000000005412 RDI: 000000000000000a
RBP: 00007f3e21011e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3e211c6218 R14: 00007f3e211c6180 R15: 00007ffd31c5e168
 </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 0c 67 b8 f9 4d 8b 65 00 31 ff 4c 89
RSP: 0018:ffffc90003c0fc40 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 00000000000002e8 RCX: 000000000000005f
RDX: 000000000000005e RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90003c0fd60 R08: ffff888107aa401f R09: 1ffff11020f54803
R10: dffffc0000000000 R11: ffffffff886ab3d0 R12: 0000000000000001
R13: 00000000000002f8 R14: ffff888107aa4010 R15: ffffc90003c0fe00
FS:  00007f3e21d9b6c0(0000) GS:ffff8880b8618000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055f6c10511b8 CR3: 00000000235e2000 CR4: 00000000000006f0
