loop0: rw=0, sector=0, nr_sectors = 1 limit=0
qnx6: Unable to read first mmi superblock
loop0: detected capacity change from 0 to 128
Oops: divide error: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5654 Comm: syz.0.22 Not tainted 6.15.0-rc1-syzkaller-gbec7dcbc242c #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:qnx6_mmi_fill_super+0x226/0x8a0 fs/qnx6/super_mmi.c:68
Code: c5 28 4c 89 e8 48 c1 e8 03 42 0f b6 04 20 84 c0 0f 85 ce 05 00 00 85 db 41 8b 45 00 89 c6 0f ce 0f 44 f0 b8 00 10 00 00 31 d2 <f7> f6 41 89 c5 48 8b 7c 24 18 e8 8b 67 9b 01 89 c5 31 ff 89 c6 e8
RSP: 0018:ffffc9000cd1fad8 EFLAGS: 00010246
RAX: 0000000000001000 RBX: 0000000000000000 RCX: ffff88801eeec880
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8344432e R09: 1ffff110026c383a
R10: dffffc0000000000 R11: ffffed10026c383b R12: dffffc0000000000
R13: ffff888043ae1028 R14: 0000000000000000 R15: ffff888043cfcba0
FS:  00007fee5dc2e6c0(0000) GS:ffff88808c596000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efdb96c7270 CR3: 0000000057928000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 qnx6_fill_super+0x182/0x15e0 fs/qnx6/inode.c:318
 get_tree_bdev_flags+0x490/0x5c0 fs/super.c:1636
 vfs_get_tree+0x90/0x2b0 fs/super.c:1759
 do_new_mount+0x2cf/0xb70 fs/namespace.c:3879
 do_mount fs/namespace.c:4219 [inline]
 __do_sys_mount fs/namespace.c:4430 [inline]
 __se_sys_mount+0x38c/0x400 fs/namespace.c:4407
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fee5cd7feba
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007fee5dc2de68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fee5dc2def0 RCX: 00007fee5cd7feba
RDX: 0000000020009e00 RSI: 0000000020000080 RDI: 00007fee5dc2deb0
RBP: 0000000020009e00 R08: 00007fee5dc2def0 R09: 000000000020c800
R10: 000000000020c800 R11: 0000000000000246 R12: 0000000020000080
R13: 00007fee5dc2deb0 R14: 0000000000009e0d R15: 0000000020000040
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:qnx6_mmi_fill_super+0x226/0x8a0 fs/qnx6/super_mmi.c:68
Code: c5 28 4c 89 e8 48 c1 e8 03 42 0f b6 04 20 84 c0 0f 85 ce 05 00 00 85 db 41 8b 45 00 89 c6 0f ce 0f 44 f0 b8 00 10 00 00 31 d2 <f7> f6 41 89 c5 48 8b 7c 24 18 e8 8b 67 9b 01 89 c5 31 ff 89 c6 e8
RSP: 0018:ffffc9000cd1fad8 EFLAGS: 00010246
RAX: 0000000000001000 RBX: 0000000000000000 RCX: ffff88801eeec880
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8344432e R09: 1ffff110026c383a
R10: dffffc0000000000 R11: ffffed10026c383b R12: dffffc0000000000
R13: ffff888043ae1028 R14: 0000000000000000 R15: ffff888043cfcba0
FS:  00007fee5dc2e6c0(0000) GS:ffff88808c596000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fee53a3f000 CR3: 0000000057928000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	28 4c 89 e8          	sub    %cl,-0x18(%rcx,%rcx,4)
   4:	48 c1 e8 03          	shr    $0x3,%rax
   8:	42 0f b6 04 20       	movzbl (%rax,%r12,1),%eax
   d:	84 c0                	test   %al,%al
   f:	0f 85 ce 05 00 00    	jne    0x5e3
  15:	85 db                	test   %ebx,%ebx
  17:	41 8b 45 00          	mov    0x0(%r13),%eax
  1b:	89 c6                	mov    %eax,%esi
  1d:	0f ce                	bswap  %esi
  1f:	0f 44 f0             	cmove  %eax,%esi
  22:	b8 00 10 00 00       	mov    $0x1000,%eax
  27:	31 d2                	xor    %edx,%edx
* 29:	f7 f6                	div    %esi <-- trapping instruction
  2b:	41 89 c5             	mov    %eax,%r13d
  2e:	48 8b 7c 24 18       	mov    0x18(%rsp),%rdi
  33:	e8 8b 67 9b 01       	call   0x19b67c3
  38:	89 c5                	mov    %eax,%ebp
  3a:	31 ff                	xor    %edi,%edi
  3c:	89 c6                	mov    %eax,%esi
  3e:	e8                   	.byte 0xe8