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: 10908 Comm: syz.3.965 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:h5_recv+0x136/0x850
Code: 03 48 89 44 24 50 48 89 4c 24 10 48 c1 e9 03 48 89 4c 24 20 48 89 d8 48 c1 e8 03 48 89 44 24 48 4c 89 64 24 58 48 8b 44 24 28 <42> 80 3c 30 00 74 08 4c 89 ef e8 3b 5f d2 f9 4d 8b 65 00 31 ff 4c
RSP: 0018:ffffc9000a3cfc40 EFLAGS: 00010202
RAX: 000000000000005f RBX: 00000000000002e8 RCX: 000000000000005e
RDX: 000000000000005f RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000a3cfd60 R08: ffff88816bc6981f R09: 1ffff1102d78d303
R10: dffffc0000000000 R11: ffffffff88579560 R12: ffff88816bc69810
R13: 00000000000002f8 R14: dffffc0000000000 R15: ffffc9000a3cfe00
FS:  00007f1c43df66c0(0000) GS:ffff8882a9924000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1c43df5ff8 CR3: 0000000166b02000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 hci_uart_tty_receive+0x194/0x220
 tiocsti+0x218/0x2a0
 tty_ioctl+0x626/0xde0
 __se_sys_ioctl+0xfc/0x170
 do_syscall_64+0xe2/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1c45b9acb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1c43df6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f1c45e16180 RCX: 00007f1c45b9acb9
RDX: 0000200000000040 RSI: 0000000000005412 RDI: 0000000000000007
RBP: 00007f1c45c08bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1c45e16218 R14: 00007f1c45e16180 R15: 00007ffcfd98c148
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:h5_recv+0x136/0x850
Code: 03 48 89 44 24 50 48 89 4c 24 10 48 c1 e9 03 48 89 4c 24 20 48 89 d8 48 c1 e8 03 48 89 44 24 48 4c 89 64 24 58 48 8b 44 24 28 <42> 80 3c 30 00 74 08 4c 89 ef e8 3b 5f d2 f9 4d 8b 65 00 31 ff 4c
RSP: 0018:ffffc9000a3cfc40 EFLAGS: 00010202
RAX: 000000000000005f RBX: 00000000000002e8 RCX: 000000000000005e
RDX: 000000000000005f RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000a3cfd60 R08: ffff88816bc6981f R09: 1ffff1102d78d303
R10: dffffc0000000000 R11: ffffffff88579560 R12: ffff88816bc69810
R13: 00000000000002f8 R14: dffffc0000000000 R15: ffffc9000a3cfe00
FS:  00007f1c43df66c0(0000) GS:ffff88818e324000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe34540ff8 CR3: 0000000166b02000 CR4: 00000000000006f0
