bond0 (unregistering): (slave bond4): Releasing backup interface bond4 (unregistering): left allmulticast mode bond4 (unregistering): Released all slaves bond3 (unregistering): Released all slaves ------------[ cut here ]------------ WARNING: CPU: 1 PID: 20515 at net/core/dev.c:10869 unregister_netdevice_many_notify+0x1463/0x1910 net/core/dev.c:10869 Modules linked in: CPU: 1 PID: 20515 Comm: kworker/u4:51 Not tainted 6.3.0-rc2-syzkaller-00077-g38e04b3e4240 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Workqueue: netns cleanup_net RIP: 0010:unregister_netdevice_many_notify+0x1463/0x1910 net/core/dev.c:10869 Code: b1 1a 00 00 48 c7 c6 40 25 5c 8b 48 c7 c7 80 25 5c 8b c6 05 15 b8 5a 06 01 e8 59 b9 43 f9 0f 0b e9 25 f7 ff ff e8 fd 3f 7b f9 <0f> 0b e9 fc f6 ff ff e8 71 5c cb f9 e9 7b ed ff ff 4c 89 ef e8 c4 RSP: 0018:ffffc90004a87a38 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 00000000277d9301 RCX: 0000000000000000 RDX: ffff8880754fa280 RSI: ffffffff8806c5b3 RDI: 0000000000000001 RBP: ffff88804f3bba80 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88804f3bba80 R14: ffff88804d7c4000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fffd6b15ce0 CR3: 000000007e8fe000 CR4: 00000000003526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: unregister_netdevice_many net/core/dev.c:10899 [inline] default_device_exit_batch+0x451/0x5b0 net/core/dev.c:11352 ops_exit_list+0x125/0x170 net/core/net_namespace.c:174 cleanup_net+0x4ee/0xb10 net/core/net_namespace.c:613 process_one_work+0x991/0x15c0 kernel/workqueue.c:2390 worker_thread+0x669/0x1090 kernel/workqueue.c:2537 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308