device bridge_slave_1 left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state device bridge_slave_0 left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state ------------[ cut here ]------------ WARNING: CPU: 0 PID: 22534 at drivers/net/ipvlan/ipvlan_l3s.c:148 ipvlan_unregister_nf_hook drivers/net/ipvlan/ipvlan_l3s.c:148 [inline] WARNING: CPU: 0 PID: 22534 at drivers/net/ipvlan/ipvlan_l3s.c:148 ipvlan_l3s_unregister+0x145/0x1d0 drivers/net/ipvlan/ipvlan_l3s.c:221 Modules linked in: CPU: 0 PID: 22534 Comm: kworker/u4:1 Not tainted 5.10.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net RIP: 0010:ipvlan_unregister_nf_hook drivers/net/ipvlan/ipvlan_l3s.c:148 [inline] RIP: 0010:ipvlan_l3s_unregister+0x145/0x1d0 drivers/net/ipvlan/ipvlan_l3s.c:221 Code: 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 32 25 f4 fc 49 c7 06 00 00 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 db 2f b1 fc <0f> 0b eb c8 e8 d2 2f b1 fc c6 05 93 95 37 08 01 48 c7 c7 60 73 3e RSP: 0018:ffffc9000926faa0 EFLAGS: 00010293 RAX: ffffffff84c452a5 RBX: 1ffff110022799b8 RCX: ffff888061d48000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff84c4522e R09: fffffbfff1a1d966 R10: fffffbfff1a1d966 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff8880113ccdc0 R14: ffff88806c32e000 R15: ffff88806abb0000 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c001708010 CR3: 00000000113b4000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ipvlan_port_destroy drivers/net/ipvlan/ipvlan_main.c:99 [inline] ipvlan_uninit+0x1f8/0x420 drivers/net/ipvlan/ipvlan_main.c:176 rollback_registered_many+0x12c5/0x16c0 net/core/dev.c:9494 unregister_netdevice_many net/core/dev.c:10701 [inline] default_device_exit_batch+0x42f/0x6b0 net/core/dev.c:11184 ops_exit_list net/core/net_namespace.c:190 [inline] cleanup_net+0x79c/0xbd0 net/core/net_namespace.c:604 process_one_work+0x789/0xfc0 kernel/workqueue.c:2275 worker_thread+0xaa4/0x1460 kernel/workqueue.c:2421 kthread+0x39a/0x3c0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296