------------[ cut here ]------------ RTNL: assertion failed at net/core/dev.c (10367) WARNING: CPU: 0 PID: 7911 at net/core/dev.c:10367 unregister_netdevice_many+0x1246/0x1850 net/core/dev.c:10367 Modules linked in: CPU: 0 PID: 7911 Comm: syz-executor.4 Not tainted 5.16.0-syzkaller-11627-g422ee58dc0ef #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 69 07 4b fa ba 7f 28 00 00 48 c7 c6 00 90 ae 8a 48 c7 c7 40 90 ae 8a c6 05 6d b1 51 06 01 e8 8c 90 d8 01 <0f> 0b e9 70 ee ff ff e8 3e 07 4b fa 4c 89 e7 e8 86 2a 59 fa e9 ee RSP: 0018:ffffc900047c76d8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815fa008 RDI: fffff520008f8ecd RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815f3d6e R11: 0000000000000000 R12: ffffc900047c7850 R13: dffffc0000000000 R14: ffffc900047c7748 R15: ffff888077aa8000 FS: 00007f40bce7b700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6f822d49d0 CR3: 000000001d9d6000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 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+0x2e0c/0x7300 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: 0033:0x7f40be506059 Code: Unable to access opcode bytes at RIP 0x7f40be50602f. RSP: 002b:00007f40bce7b118 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007f40be618f60 RCX: 00007f40be506059 RDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000042080000 RBP: 00007f40be56008d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000020000580 R11: 0000000000000206 R12: 0000000000000000 R13: 00007ffff712eeaf R14: 00007f40bce7b300 R15: 0000000000022000