netdevsim netdevsim3 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim3 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim5 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 17883 at net/core/devlink.c:10331 devl_port_unregister+0x1d3/0x290 Modules linked in: CPU: 1 PID: 17883 Comm: kworker/u4:32 Not tainted 6.2.0-rc8-syzkaller-00027-g033c40a89f55 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 Workqueue: netns cleanup_net RIP: 0010:devl_port_unregister+0x1d3/0x290 net/core/devlink.c:10331 Code: 49 81 c6 d4 00 00 00 4c 89 f0 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 a5 00 00 00 41 80 26 fb 5b 41 5e 41 5f c3 e8 8d 01 db f8 <0f> 0b e9 e7 fe ff ff e8 81 01 db f8 0f 0b eb ba e8 78 01 db f8 0f RSP: 0018:ffffc9000558f890 EFLAGS: 00010293 RAX: ffffffff88b0d0c3 RBX: 0000000000000002 RCX: ffff88802bebba80 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff88b0cfa4 R09: fffffbfff19828f0 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88803a9a1000 R14: ffff88807aab2810 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f42adbf42e0 CR3: 000000008e69f000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __nsim_dev_port_del+0x179/0x1b0 drivers/net/netdevsim/dev.c:1430 nsim_dev_port_del_all drivers/net/netdevsim/dev.c:1440 [inline] nsim_dev_reload_destroy+0x286/0x490 drivers/net/netdevsim/dev.c:1657 nsim_dev_reload_down+0x98/0xd0 drivers/net/netdevsim/dev.c:968 devlink_reload+0x204/0x6d0 net/core/devlink.c:4741 devlink_pernet_pre_exit+0x152/0x2c0 net/core/devlink.c:13003 ops_pre_exit_list net/core/net_namespace.c:159 [inline] cleanup_net+0x5a0/0xb80 net/core/net_namespace.c:594 process_one_work+0x8fa/0x1370 kernel/workqueue.c:2289 worker_thread+0xa63/0x1210 kernel/workqueue.c:2436 kthread+0x270/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308