netdevsim netdevsim2 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim2 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim4 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5210 at net/devlink/leftover.c:8260 devl_port_unregister+0x250/0x2c0 net/devlink/leftover.c:8260 Modules linked in: CPU: 1 PID: 5210 Comm: kworker/u4:6 Not tainted 6.2.0-rc7-syzkaller-01624-g168de0233586 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 Workqueue: netns cleanup_net RIP: 0010:devl_port_unregister+0x250/0x2c0 net/devlink/leftover.c:8260 Code: e8 b5 80 bf f8 85 ed 0f 85 2c fe ff ff e8 f8 83 bf f8 0f 0b e9 20 fe ff ff e8 ec 83 bf f8 0f 0b e9 57 ff ff ff e8 e0 83 bf f8 <0f> 0b e9 46 fe ff ff e8 94 05 10 f9 e9 e4 fe ff ff e8 8a 05 10 f9 RSP: 0018:ffffc9000492fa10 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88804a688810 RCX: 0000000000000000 RDX: ffff88801fa80000 RSI: ffffffff88c17db0 RDI: 0000000000000005 RBP: 0000000000000002 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000000 R12: ffff88804a688810 R13: ffff88804a688830 R14: ffff88802bb46c00 R15: ffff88804a688800 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f28d7e409ee CR3: 0000000028cad000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __nsim_dev_port_del+0x1bb/0x240 drivers/net/netdevsim/dev.c:1430 nsim_dev_port_del_all drivers/net/netdevsim/dev.c:1440 [inline] nsim_dev_reload_destroy+0x171/0x510 drivers/net/netdevsim/dev.c:1661 nsim_dev_reload_down+0x6f/0xe0 drivers/net/netdevsim/dev.c:968 devlink_reload+0x105/0x440 net/devlink/dev.c:364 devlink_pernet_pre_exit+0x1b6/0x270 net/devlink/core.c:291 ops_pre_exit_list net/core/net_namespace.c:159 [inline] cleanup_net+0x455/0xb10 net/core/net_namespace.c:594 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x669/0x1090 kernel/workqueue.c:2436 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308