Oops: general protection fault, probably for non-canonical address 0xdffffc000000005f: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x00000000000002f8-0x00000000000002ff]
CPU: 3 UID: 0 PID: 8532 Comm: syz.4.729 Not tainted 6.15.0-rc1-syzkaller-00288-ge618ee89561b #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:h5_recv+0x104/0x910 drivers/bluetooth/hci_h5.c:572
Code: c1 e8 03 4c 01 f0 48 89 44 24 08 48 8d 83 08 03 00 00 48 89 44 24 30 48 c1 e8 03 48 89 44 24 10 e8 e1 ae 5b f9 48 8b 44 24 08 <80> 38 00 0f 85 ae 01 00 00 48 89 ea 48 89 e9 4c 8b bb f8 02 00 00
RSP: 0018:ffffc90003487c00 EFLAGS: 00010293
RAX: dffffc000000005f RBX: 0000000000000000 RCX: ffffffff885f8e4a
RDX: ffff88802b1ac880 RSI: ffffffff885f8e8f RDI: 0000000000000005
RBP: ffffc90003487d88 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000001 R14: dffffc0000000000 R15: ffffffff8c918260
FS:  00007f00147f26c0(0000) GS:ffff8880d6cb3000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000140 CR3: 00000000504c6000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 hci_uart_tty_receive+0x251/0x7e0 drivers/bluetooth/hci_ldisc.c:627
 tiocsti drivers/tty/tty_io.c:2299 [inline]
 tty_ioctl+0x57d/0x1610 drivers/tty/tty_io.c:2716
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl fs/ioctl.c:892 [inline]
 __x64_sys_ioctl+0x190/0x200 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f001398d169
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:00007f00147f2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f0013ba6080 RCX: 00007f001398d169
RDX: 0000200000000140 RSI: 0000000000005412 RDI: 0000000000000006
RBP: 00007f0013a0e990 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0013ba6080 R15: 00007ffe491890a8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:h5_recv+0x104/0x910 drivers/bluetooth/hci_h5.c:572
Code: c1 e8 03 4c 01 f0 48 89 44 24 08 48 8d 83 08 03 00 00 48 89 44 24 30 48 c1 e8 03 48 89 44 24 10 e8 e1 ae 5b f9 48 8b 44 24 08 <80> 38 00 0f 85 ae 01 00 00 48 89 ea 48 89 e9 4c 8b bb f8 02 00 00
RSP: 0018:ffffc90003487c00 EFLAGS: 00010293
RAX: dffffc000000005f RBX: 0000000000000000 RCX: ffffffff885f8e4a
RDX: ffff88802b1ac880 RSI: ffffffff885f8e8f RDI: 0000000000000005
RBP: ffffc90003487d88 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000001 R14: dffffc0000000000 R15: ffffffff8c918260
FS:  00007f00147f26c0(0000) GS:ffff8880d6bb3000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f85682a1580 CR3: 00000000504c6000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	c1 e8 03             	shr    $0x3,%eax
   3:	4c 01 f0             	add    %r14,%rax
   6:	48 89 44 24 08       	mov    %rax,0x8(%rsp)
   b:	48 8d 83 08 03 00 00 	lea    0x308(%rbx),%rax
  12:	48 89 44 24 30       	mov    %rax,0x30(%rsp)
  17:	48 c1 e8 03          	shr    $0x3,%rax
  1b:	48 89 44 24 10       	mov    %rax,0x10(%rsp)
  20:	e8 e1 ae 5b f9       	call   0xf95baf06
  25:	48 8b 44 24 08       	mov    0x8(%rsp),%rax
* 2a:	80 38 00             	cmpb   $0x0,(%rax) <-- trapping instruction
  2d:	0f 85 ae 01 00 00    	jne    0x1e1
  33:	48 89 ea             	mov    %rbp,%rdx
  36:	48 89 e9             	mov    %rbp,%rcx
  39:	4c 8b bb f8 02 00 00 	mov    0x2f8(%rbx),%r15