bond1 (unregistering): (slave wireguard2): Releasing backup interface bond1 (unregistering): (slave wireguard1): Releasing backup interface bond1 (unregistering): (slave wireguard0): Releasing backup interface device wireguard0 left promiscuous mode bond1 (unregistering): Destroying bond ------------[ cut here ]------------ kernel BUG at net/core/dev.c:8948! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 129 Comm: kworker/u4:3 Not tainted 5.8.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net RIP: 0010:rollback_registered_many+0x2be/0xf60 net/core/dev.c:8948 Code: 4c 89 e8 48 c1 e8 03 42 80 3c 20 00 0f 85 91 0c 00 00 48 b8 22 01 00 00 00 00 ad de 48 89 43 70 e9 b9 fe ff ff e8 82 19 3d fb <0f> 0b 4c 8d 7b 68 4c 8d 6b 70 eb a5 e8 71 19 3d fb 48 8b 74 24 10 RSP: 0018:ffffc90000e976b0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff8880a2bb0000 RCX: ffffffff86369018 RDX: ffff8880a8dcc2c0 RSI: ffffffff8636916e RDI: 0000000000000001 RBP: ffffc90000e97770 R08: 0000000000000000 R09: ffffffff8a7b9707 R10: 0000000000000001 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff8880a2bb0068 R14: ffffc90000e97718 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000e07978 CR3: 0000000093d17000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rollback_registered net/core/dev.c:9022 [inline] unregister_netdevice_queue+0x2dd/0x570 net/core/dev.c:10103 unregister_netdevice include/linux/netdevice.h:2762 [inline] bond_release_and_destroy drivers/net/bonding/bond_main.c:2212 [inline] bond_slave_netdev_event drivers/net/bonding/bond_main.c:3285 [inline] bond_netdev_event.cold+0xc1/0x10e drivers/net/bonding/bond_main.c:3398 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2033 call_netdevice_notifiers_extack net/core/dev.c:2045 [inline] call_netdevice_notifiers net/core/dev.c:2059 [inline] rollback_registered_many+0x665/0xf60 net/core/dev.c:8977 unregister_netdevice_many.part.0+0x1a/0x2f0 net/core/dev.c:10122 unregister_netdevice_many net/core/dev.c:10121 [inline] default_device_exit_batch+0x30c/0x3d0 net/core/dev.c:10605 ops_exit_list+0x10d/0x160 net/core/net_namespace.c:189 cleanup_net+0x4ea/0xa00 net/core/net_namespace.c:603 process_one_work+0x94c/0x1670 kernel/workqueue.c:2269 worker_thread+0x64c/0x1120 kernel/workqueue.c:2415 kthread+0x3b5/0x4a0 kernel/kthread.c:291 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293 Modules linked in: ---[ end trace c01e039c1ee3796a ]--- RIP: 0010:rollback_registered_many+0x2be/0xf60 net/core/dev.c:8948 Code: 4c 89 e8 48 c1 e8 03 42 80 3c 20 00 0f 85 91 0c 00 00 48 b8 22 01 00 00 00 00 ad de 48 89 43 70 e9 b9 fe ff ff e8 82 19 3d fb <0f> 0b 4c 8d 7b 68 4c 8d 6b 70 eb a5 e8 71 19 3d fb 48 8b 74 24 10 RSP: 0018:ffffc90000e976b0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff8880a2bb0000 RCX: ffffffff86369018 RDX: ffff8880a8dcc2c0 RSI: ffffffff8636916e RDI: 0000000000000001 RBP: ffffc90000e97770 R08: 0000000000000000 R09: ffffffff8a7b9707 R10: 0000000000000001 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff8880a2bb0068 R14: ffffc90000e97718 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f091b46f018 CR3: 0000000097f54000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400