Oops: general protection fault, probably for non-canonical address 0xdffffc000000005f: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x00000000000002f8-0x00000000000002ff]
CPU: 0 UID: 0 PID: 15193 Comm: syz.2.2816 Not tainted 6.15.0-rc5-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/29/2025
RIP: 0010:h5_recv+0x146/0x8d0 drivers/bluetooth/hci_h5.c:572
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 6c 39 d0 f9 4d 8b 65 00 31 ff 4c 89
RSP: 0018:ffffc90004b07c40 EFLAGS: 00010212
RAX: dffffc0000000000 RBX: 00000000000002e8 RCX: 000000000000005f
RDX: 000000000000005e RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90004b07d60 R08: ffff88802739681f R09: 1ffff11004e72d03
R10: dffffc0000000000 R11: ffffffff88518a20 R12: 0000000000000001
R13: 00000000000002f8 R14: ffff888027396810 R15: ffffc90004b07e00
FS:  00007f865912a6c0(0000) GS:ffff8881260cb000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8659129f98 CR3: 000000002e5bb000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 hci_uart_tty_receive+0x194/0x220 drivers/bluetooth/hci_ldisc.c:627
 tiocsti+0x23c/0x2c0 drivers/tty/tty_io.c:2299
 tty_ioctl+0x626/0xde0 drivers/tty/tty_io.c:2716
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f865838e969
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:00007f865912a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f86585b6160 RCX: 00007f865838e969
RDX: 0000200000000340 RSI: 0000000000005412 RDI: 0000000000000008
RBP: 00007f8658410ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f86585b6160 R15: 00007ffcc50f02e8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:h5_recv+0x146/0x8d0 drivers/bluetooth/hci_h5.c:572
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 6c 39 d0 f9 4d 8b 65 00 31 ff 4c 89
RSP: 0018:ffffc90004b07c40 EFLAGS: 00010212
RAX: dffffc0000000000 RBX: 00000000000002e8 RCX: 000000000000005f
RDX: 000000000000005e RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90004b07d60 R08: ffff88802739681f R09: 1ffff11004e72d03
R10: dffffc0000000000 R11: ffffffff88518a20 R12: 0000000000000001
R13: 00000000000002f8 R14: ffff888027396810 R15: ffffc90004b07e00
FS:  00007f865912a6c0(0000) GS:ffff8881260cb000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8655df3f98 CR3: 000000002e5bb000 CR4: 0000000000350ef0
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	48 c1 ea 03          	shr    $0x3,%rdx
   4:	48 89 54 24 28       	mov    %rdx,0x28(%rsp)
   9:	48 89 d8             	mov    %rbx,%rax
   c:	48 c1 e8 03          	shr    $0x3,%rax
  10:	48 89 44 24 50       	mov    %rax,0x50(%rsp)
  15:	44 89 64 24 14       	mov    %r12d,0x14(%rsp)
  1a:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  21:	fc ff df
  24:	48 8b 4c 24 30       	mov    0x30(%rsp),%rcx
* 29:	80 3c 01 00          	cmpb   $0x0,(%rcx,%rax,1) <-- trapping instruction
  2d:	74 08                	je     0x37
  2f:	4c 89 ef             	mov    %r13,%rdi
  32:	e8 6c 39 d0 f9       	call   0xf9d039a3
  37:	4d 8b 65 00          	mov    0x0(%r13),%r12
  3b:	31 ff                	xor    %edi,%edi
  3d:	4c                   	rex.WR
  3e:	89                   	.byte 0x89