------------[ cut here ]------------ RTNL: assertion failed at net/core/dev.c (10367) WARNING: CPU: 0 PID: 29585 at net/core/dev.c:10367 unregister_netdevice_many+0x1246/0x1850 net/core/dev.c:10367 Modules linked in: CPU: 0 PID: 29585 Comm: syz-executor.4 Not tainted 5.16.0-syzkaller-11655-ge5313968c41b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:unregister_netdevice_many+0x1246/0x1850 net/core/dev.c:10367 Code: 0f 85 9b ee ff ff e8 59 f1 4a fa ba 7f 28 00 00 48 c7 c6 00 90 ae 8a 48 c7 c7 40 90 ae 8a c6 05 0e a1 51 06 01 e8 3c 8a d8 01 <0f> 0b e9 70 ee ff ff e8 2e f1 4a fa 4c 89 e7 e8 c6 22 59 fa e9 ee RSP: 0018:ffffc90003f976d8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815fa058 RDI: fffff520007f2ecd RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff815f3dbe R11: 0000000000000000 R12: ffffc90003f97850 R13: dffffc0000000000 R14: ffffc90003f97748 R15: ffff888075174000 FS: 00007ff7a83c1700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f76931c2fc0 CR3: 000000006a1c3000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mroute_clean_tables+0x271/0xb50 net/ipv4/ipmr.c:1282 ipmr_free_table net/ipv4/ipmr.c:411 [inline] ipmr_rules_init net/ipv4/ipmr.c:259 [inline] ipmr_net_init net/ipv4/ipmr.c:3059 [inline] ipmr_net_init+0x3f0/0x4e0 net/ipv4/ipmr.c:3051 ops_init+0xaf/0x470 net/core/net_namespace.c:140 setup_net+0x54f/0xbb0 net/core/net_namespace.c:331 copy_net_ns+0x318/0x760 net/core/net_namespace.c:475 create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110 copy_namespaces+0x391/0x450 kernel/nsproxy.c:178 copy_process+0x2e15/0x7310 kernel/fork.c:2167 kernel_clone+0xe7/0xab0 kernel/fork.c:2555 __do_sys_clone+0xc8/0x110 kernel/fork.c:2672 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7ff7a9a4c059 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff7a83c1118 EFLAGS: 00000202 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ff7a9b5ef60 RCX: 00007ff7a9a4c059 RDX: 0000000020000080 RSI: 0000000020000050 RDI: 0000000046000080 RBP: 00007ff7a9aa608d R08: 0000000020000100 R09: 0000000020000100 R10: 00000000200000c0 R11: 0000000000000202 R12: 0000000000000000 R13: 00007ffff1377c7f R14: 00007ff7a83c1300 R15: 0000000000022000