------------[ cut here ]------------
RTNL: assertion failed at ./include/net/netdev_lock.h (72)
WARNING: ./include/net/netdev_lock.h:72 at netdev_assert_locked_ops_compat include/net/netdev_lock.h:72 [inline], CPU#1: syz.7.3450/23251
WARNING: ./include/net/netdev_lock.h:72 at netdev_queue_get_dma_dev+0x483/0x500 net/core/netdev_queues.c:43, CPU#1: syz.7.3450/23251
Modules linked in:
CPU: 1 UID: 0 PID: 23251 Comm: syz.7.3450 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
RIP: 0010:netdev_assert_locked_ops_compat include/net/netdev_lock.h:72 [inline]
RIP: 0010:netdev_queue_get_dma_dev+0x48f/0x500 net/core/netdev_queues.c:43
Code: 75 d7 eb dd e8 82 ec 10 f8 90 0f 0b 90 e9 e0 fc ff ff e8 74 ec 10 f8 48 8d 3d ed d4 b0 06 48 c7 c6 f6 99 28 8e ba 48 00 00 00 <67> 48 0f b9 3a e9 be fc ff ff 44 89 f9 80 e1 07 38 c1 0f 8c 9b fb
RSP: 0018:ffffc900043e79e0 EFLAGS: 00010293
RAX: ffffffff89b614ec RBX: ffff888012a52000 RCX: ffff888035aadd00
RDX: 0000000000000048 RSI: ffffffff8e2899f6 RDI: ffffffff9066e9e0
RBP: 0000000000000000 R08: ffffffff90027e27 R09: 1ffffffff2004fc4
R10: dffffc0000000000 R11: fffffbfff2004fc5 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fa7053f66c0(0000) GS:ffff888125055000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c404d8c CR3: 000000002c578000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 zcrx_register_netdev+0x213/0x520 io_uring/zcrx.c:831
 io_register_zcrx+0x953/0xc00 io_uring/zcrx.c:983
 __io_uring_register io_uring/register.c:942 [inline]
 __do_sys_io_uring_register io_uring/register.c:1040 [inline]
 __se_sys_io_uring_register+0xc23/0x1ab0 io_uring/register.c:1017
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa70719e0d9
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:00007fa7053f6028 EFLAGS: 00000246 ORIG_RAX: 00000000000001ab
RAX: ffffffffffffffda RBX: 00007fa707426090 RCX: 00007fa70719e0d9
RDX: 0000200000000100 RSI: 0000000000000020 RDI: 0000000000000005
RBP: 00007fa707235024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa707426128 R14: 00007fa707426090 R15: 00007ffedcbee5a8
 </TASK>
----------------
Code disassembly (best guess):
   0:	75 d7                	jne    0xffffffd9
   2:	eb dd                	jmp    0xffffffe1
   4:	e8 82 ec 10 f8       	call   0xf810ec8b
   9:	90                   	nop
   a:	0f 0b                	ud2
   c:	90                   	nop
   d:	e9 e0 fc ff ff       	jmp    0xfffffcf2
  12:	e8 74 ec 10 f8       	call   0xf810ec8b
  17:	48 8d 3d ed d4 b0 06 	lea    0x6b0d4ed(%rip),%rdi        # 0x6b0d50b
  1e:	48 c7 c6 f6 99 28 8e 	mov    $0xffffffff8e2899f6,%rsi
  25:	ba 48 00 00 00       	mov    $0x48,%edx
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	e9 be fc ff ff       	jmp    0xfffffcf2
  34:	44 89 f9             	mov    %r15d,%ecx
  37:	80 e1 07             	and    $0x7,%cl
  3a:	38 c1                	cmp    %al,%cl
  3c:	0f                   	.byte 0xf
  3d:	8c                   	.byte 0x8c
  3e:	9b                   	fwait
  3f:	fb                   	sti