Oops: divide error: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 26491 Comm: syz.3.7080 Tainted: G             L     Y syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP, [Y]=FORCED_BIND
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/15/2026
RIP: 0010:queue_limit_discard_alignment block/blk-settings.c:645 [inline]
RIP: 0010:queue_limit_discard_alignment block/blk-settings.c:632 [inline]
RIP: 0010:blk_stack_limits+0x105f/0x2110 block/blk-settings.c:916
Code: 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 98 0d 00 00 41 8b 45 74 c1 eb 09 31 d2 31 ff 89 de c1 e8 09 8d 0c 18 48 8b 44 24 48 <48> f7 f6 89 c8 44 89 e6 29 d0 31 d2 f7 f3 c1 e2 09 89 d5 e8 09 ff
RSP: 0018:ffffc90010a5f718 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000001 R12: 0000000000000000
R13: ffffc90010a5f870 R14: 00000000ffffffff R15: ffffc90010a5fa10
FS:  00007f530a1f66c0(0000) GS:ffff8881224a4000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3ac0b556c8 CR3: 00000000ae1c4000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 dm_calculate_queue_limits+0x38f/0xeb0 drivers/md/dm-table.c:1823
 dm_setup_md_queue+0xe2/0x550 drivers/md/dm.c:2618
 table_load+0x4e8/0x7b0 drivers/md/dm-ioctl.c:1661
 ctl_ioctl+0x4d2/0xcc0 drivers/md/dm-ioctl.c:2221
 dm_ctl_ioctl+0x22/0x30 drivers/md/dm-ioctl.c:2243
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl fs/ioctl.c:583 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f530bf9f559
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:00007f530a1f6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f530c225fa0 RCX: 00007f530bf9f559
RDX: 00002000000006c0 RSI: 00000000c138fd09 RDI: 0000000000000003
RBP: 00007f530c036b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f530c226038 R14: 00007f530c225fa0 R15: 00007ffe5609ad08
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:queue_limit_discard_alignment block/blk-settings.c:645 [inline]
RIP: 0010:queue_limit_discard_alignment block/blk-settings.c:632 [inline]
RIP: 0010:blk_stack_limits+0x105f/0x2110 block/blk-settings.c:916
Code: 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 98 0d 00 00 41 8b 45 74 c1 eb 09 31 d2 31 ff 89 de c1 e8 09 8d 0c 18 48 8b 44 24 48 <48> f7 f6 89 c8 44 89 e6 29 d0 31 d2 f7 f3 c1 e2 09 89 d5 e8 09 ff
RSP: 0018:ffffc90010a5f718 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000001 R12: 0000000000000000
R13: ffffc90010a5f870 R14: 00000000ffffffff R15: ffffc90010a5fa10
FS:  00007f530a1f66c0(0000) GS:ffff8881224a4000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3abfdecc40 CR3: 00000000ae1c4000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	83 e0 07             	and    $0x7,%eax
   3:	83 c0 03             	add    $0x3,%eax
   6:	38 d0                	cmp    %dl,%al
   8:	7c 08                	jl     0x12
   a:	84 d2                	test   %dl,%dl
   c:	0f 85 98 0d 00 00    	jne    0xdaa
  12:	41 8b 45 74          	mov    0x74(%r13),%eax
  16:	c1 eb 09             	shr    $0x9,%ebx
  19:	31 d2                	xor    %edx,%edx
  1b:	31 ff                	xor    %edi,%edi
  1d:	89 de                	mov    %ebx,%esi
  1f:	c1 e8 09             	shr    $0x9,%eax
  22:	8d 0c 18             	lea    (%rax,%rbx,1),%ecx
  25:	48 8b 44 24 48       	mov    0x48(%rsp),%rax
* 2a:	48 f7 f6             	div    %rsi <-- trapping instruction
  2d:	89 c8                	mov    %ecx,%eax
  2f:	44 89 e6             	mov    %r12d,%esi
  32:	29 d0                	sub    %edx,%eax
  34:	31 d2                	xor    %edx,%edx
  36:	f7 f3                	div    %ebx
  38:	c1 e2 09             	shl    $0x9,%edx
  3b:	89 d5                	mov    %edx,%ebp
  3d:	e8                   	.byte 0xe8
  3e:	09 ff                	or     %edi,%edi