syzbot

netdevsim netdevsim3 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
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WARNING: CPU: 1 PID: 2574 at net/core/devlink.c:11162 devlink_trap_groups_unregister+0xe8/0x110 net/core/devlink.c:11162
Modules linked in:
CPU: 1 PID: 2574 Comm: kworker/u4:5 Not tainted 5.15.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
RIP: 0010:devlink_trap_groups_unregister+0xe8/0x110 net/core/devlink.c:11162
Code: ff ff 31 ff 89 de e8 f7 e1 41 fa 83 fb ff 75 cc e8 ad da 41 fa 4c 89 f7 5b 5d 41 5c 41 5d 41 5e e9 cd 77 05 02 e8 98 da 41 fa <0f> 0b e9 71 ff ff ff 4c 89 ef e8 79 4d 89 fa e9 3b ff ff ff 48 89
RSP: 0018:ffffc9000bcb7a00 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000006 RCX: 0000000000000000
RDX: ffff88802515b900 RSI: ffffffff87351008 RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff87350f77 R11: 0000000000000000 R12: ffffffff8a263c20
R13: ffff88806e248000 R14: dffffc0000000000 R15: ffff88806e248388
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcb010e6370 CR3: 000000001dc90000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 nsim_dev_traps_exit+0x67/0x170 drivers/net/netdevsim/dev.c:849
 nsim_dev_reload_destroy+0x20c/0x2f0 drivers/net/netdevsim/dev.c:1559
 nsim_dev_reload_down+0xdf/0x180 drivers/net/netdevsim/dev.c:883
 devlink_reload+0x1c2/0x6b0 net/core/devlink.c:4040
 devlink_pernet_pre_exit+0x278/0x370 net/core/devlink.c:11477
 ops_pre_exit_list net/core/net_namespace.c:158 [inline]
 cleanup_net+0x451/0xb00 net/core/net_namespace.c:581
 process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297
 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444
 kthread+0x3e5/0x4d0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295