panic: unknown network protocol number 0 goroutine 925141 [running]: panic(0x12119c0, 0xc006c126e0) GOROOT/src/runtime/panic.go:1065 +0x565 fp=0xc00727a8f8 sp=0xc00727a830 pc=0x437c65 gvisor.dev/gvisor/pkg/tcpip/stack.(*PacketBuffer).Network(0xc00bb18a80, 0xc0004ae900, 0xed979f3c5) pkg/tcpip/stack/packet_buffer.go:420 +0x1d7 fp=0xc00727a950 sp=0xc00727a8f8 pc=0x9e59b7 gvisor.dev/gvisor/pkg/tcpip/transport/raw.(*endpoint).HandlePacket.func1(0xc0070d8b00, 0xc00bb18a80, 0x0) pkg/tcpip/transport/raw/endpoint.go:688 +0x348 fp=0xc00727bf58 sp=0xc00727a950 pc=0xbb3208 gvisor.dev/gvisor/pkg/tcpip/transport/raw.(*endpoint).HandlePacket(0xc0070d8b00, 0xc00bb18a80) pkg/tcpip/transport/raw/endpoint.go:818 +0x3f fp=0xc00727bf80 sp=0xc00727bf58 pc=0xbafe3f gvisor.dev/gvisor/pkg/tcpip/stack.(*transportDemuxer).deliverRawPacket(0xc008ea63f0, 0x1, 0xc00bb0b880, 0x8) pkg/tcpip/stack/transport_demuxer.go:771 +0x1a3 fp=0xc00727c038 sp=0xc00727bf80 pc=0x9fd503 gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).DeliverRawPacket(0xc002a7ef00, 0xc000000001, 0xc00bb0b880) pkg/tcpip/stack/nic.go:1123 +0x65 fp=0xc00727c070 sp=0xc00727c038 pc=0x9e2c25 gvisor.dev/gvisor/pkg/tcpip/network/ipv4.(*endpoint).handleValidatedPacket(0xc002cb4000, 0xc00583a7b6, 0x14, 0x14, 0xc00bb18700, 0x142a58a, 0x2) pkg/tcpip/network/ipv4/ipv4.go:1145 +0xfa2 fp=0xc00727c838 sp=0xc00727c070 pc=0xc03e82 gvisor.dev/gvisor/pkg/tcpip/network/ipv4.(*endpoint).HandlePacket(0xc002cb4000, 0xc00bb18700) pkg/tcpip/network/ipv4/ipv4.go:930 +0x1a5 fp=0xc00727ca98 sp=0xc00727c838 pc=0xc02865 gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).DeliverNetworkPacket(0xc002a7ef00, 0xc00714a396, 0x6, 0xc00714a3a0, 0x6, 0x800, 0xc00bb18700) pkg/tcpip/stack/nic.go:938 +0x3ae fp=0xc00727cb50 sp=0xc00727ca98 pc=0x9e1d4e gvisor.dev/gvisor/pkg/tcpip/link/nested.(*Endpoint).DeliverNetworkPacket(0xc001416230, 0xc00714a396, 0x6, 0xc00714a3a0, 0x6, 0x800, 0xc00bb18700) pkg/tcpip/link/nested/nested.go:63 +0x104 fp=0xc00727cbb0 sp=0xc00727cb50 pc=0xcb7d44 gvisor.dev/gvisor/pkg/tcpip/link/ethernet.(*Endpoint).DeliverNetworkPacket(0xc001416230, 0x0, 0x0, 0x0, 0x0, 0x800, 0xc00bb18700) pkg/tcpip/link/ethernet/ethernet.go:82 +0x1bb fp=0xc00727cc20 sp=0xc00727cbb0 pc=0xf9bddb gvisor.dev/gvisor/pkg/tcpip/link/loopback.(*endpoint).WriteRawPacket(0xc0046777f0, 0xc00bb15c00, 0x0, 0x0) pkg/tcpip/link/loopback/loopback.go:125 +0x12f fp=0xc00727cc90 sp=0xc00727cc20 pc=0xf9c9af gvisor.dev/gvisor/pkg/tcpip/link/loopback.(*endpoint).WritePackets(0xc0046777f0, 0xc00bb15c00, 0xc00bb15c00, 0x0, 0x0, 0xc000000800) pkg/tcpip/link/loopback/loopback.go:91 +0x90 fp=0xc00727ccd0 sp=0xc00727cc90 pc=0xf9c7d0 gvisor.dev/gvisor/pkg/tcpip/link/nested.(*Endpoint).WritePackets(...) pkg/tcpip/link/nested/nested.go:120 gvisor.dev/gvisor/pkg/tcpip/link/ethernet.(*Endpoint).WritePackets(0xc001416230, 0xc00bb15c00, 0xc00bb15c00, 0x0, 0xc00092ed00, 0x1486428) pkg/tcpip/link/ethernet/ethernet.go:108 +0x10e fp=0xc00727cd30 sp=0xc00727ccd0 pc=0xf9bfee gvisor.dev/gvisor/pkg/tcpip/stack.(*delegatingQueueingDiscipline).WritePacket(0xc004677800, 0xc00bb15c00, 0x0, 0xc00bb15c00) pkg/tcpip/stack/nic.go:166 +0x75 fp=0xc00727cd80 sp=0xc00727cd30 pc=0x9de355 gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).writePacket(0xc002a7ef00, 0xc00bb15c00, 0xc0049172f0, 0x4) pkg/tcpip/stack/nic.go:448 +0xbf fp=0xc00727cdc8 sp=0xc00727cd80 pc=0x9dfc1f gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).WritePacket(0xc002a7ef00, 0xc000fe6a00, 0xc00bb15c00, 0x0, 0x0) pkg/tcpip/stack/nic.go:407 +0x229 fp=0xc00727cf08 sp=0xc00727cdc8 pc=0x9df9c9 gvisor.dev/gvisor/pkg/tcpip/network/ipv4.(*endpoint).writePacketPostRouting.func1(0xc00bb15c00, 0xc00583a766, 0x14) pkg/tcpip/network/ipv4/ipv4.go:594 +0x52 fp=0xc00727cf40 sp=0xc00727cf08 pc=0xc094b2 gvisor.dev/gvisor/pkg/tcpip/network/ipv4.(*endpoint).handleFragments(0xc002cb4000, 0xc000fe6a00, 0xc00000ffde, 0xc00bb0bc00, 0xc00727d0e0, 0x142a58a, 0x2, 0x1, 0x0) pkg/tcpip/network/ipv4/ipv4.go:476 +0x166 fp=0xc00727d070 sp=0xc00727cf40 pc=0xc003a6 gvisor.dev/gvisor/pkg/tcpip/network/ipv4.(*endpoint).writePacketPostRouting(0xc002cb4000, 0xc000fe6a00, 0xc00bb0bc00, 0xc004917300, 0x4, 0xc00583a701) pkg/tcpip/network/ipv4/ipv4.go:588 +0x332 fp=0xc00727d2b8 sp=0xc00727d070 pc=0xc00c92 gvisor.dev/gvisor/pkg/tcpip/network/ipv4.(*endpoint).writePacket(0xc002cb4000, 0xc000fe6a00, 0xc00bb0bc00, 0xc0049172f0, 0x4) pkg/tcpip/network/ipv4/ipv4.go:538 +0x205 fp=0xc00727d340 sp=0xc00727d2b8 pc=0xc00865 gvisor.dev/gvisor/pkg/tcpip/network/ipv4.(*endpoint).WritePacket(0xc002cb4000, 0xc000fe6a00, 0x4000000001, 0xc00bb0bc00, 0x9e49ee, 0x15ea768) pkg/tcpip/network/ipv4/ipv4.go:500 +0x11b fp=0xc00727d3b0 sp=0xc00727d340 pc=0xc0061b gvisor.dev/gvisor/pkg/tcpip/stack.(*Route).WritePacket(0xc000fe6a00, 0x4000000001, 0xc00bb0bc00, 0xc003c274c0, 0xc00bb0bc00) pkg/tcpip/stack/route.go:572 +0xd7 fp=0xc00727d3f0 sp=0xc00727d3b0 pc=0x9ec8d7 gvisor.dev/gvisor/pkg/tcpip/transport/internal/network.(*WriteContext).WritePacket(0xc003c274d8, 0xc00bb0bc00, 0x0, 0x1, 0xffe0) pkg/tcpip/transport/internal/network/endpoint.go:295 +0xd6 fp=0xc00727d428 sp=0xc00727d3f0 pc=0xba1956 gvisor.dev/gvisor/pkg/tcpip/transport/raw.(*endpoint).write(0xc00423a2c0, 0x15dbd88, 0xc00c910a50, 0xc0046fdc40, 0x0, 0x0, 0x0, 0x0) pkg/tcpip/transport/raw/endpoint.go:392 +0x53b fp=0xc00727d5d8 sp=0xc00727d428 pc=0xbaedfb gvisor.dev/gvisor/pkg/tcpip/transport/raw.(*endpoint).Write(0xc00423a2c0, 0x15dbd88, 0xc00c910a50, 0xc0046fdc40, 0xc004000000, 0x4, 0x0, 0xa80002) pkg/tcpip/transport/raw/endpoint.go:323 +0xc5 fp=0xc00727d628 sp=0xc00727d5d8 pc=0xbae565 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*socketOpsCommon).SendMsg(0xc004a56f50, 0xc007096000, 0x15f5760, 0xc00c0c4000, 0x0, 0x1, 0x20000040, 0xffe0, 0x100, 0xc0049172e0, ...) pkg/sentry/socket/netstack/netstack.go:3915 +0x243 fp=0xc00727d788 sp=0xc00727d628 pc=0xc4e2a3 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.sendSingleMsg(0xc007096000, 0x3f69a2592b78, 0xc004a56ee0, 0xc004a56ee0, 0x20001440, 0xc000000040, 0x0, 0xc007096001, 0x555ffb7d3f68) pkg/sentry/syscalls/linux/vfs2/socket.go:1437 +0x555 fp=0xc00727dae8 sp=0xc00727d788 pc=0xf76395 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.SendMMsg(0xc007096000, 0x3, 0x20001440, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...) pkg/sentry/syscalls/linux/vfs2/socket.go:1329 +0x37f fp=0xc00727dbb8 sp=0xc00727dae8 pc=0xf759bf gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc007096000, 0x133, 0x3, 0x20001440, 0x1, 0x0, 0x0, 0x0, 0xc000001fa0, 0x1425680, ...) pkg/sentry/kernel/task_syscall.go:115 +0x199 fp=0xc00727dc78 sp=0xc00727dbb8 pc=0xa835d9 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc007096000, 0x133, 0x3, 0x20001440, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0) pkg/sentry/kernel/task_syscall.go:290 +0x70 fp=0xc00727dd00 sp=0xc00727dc78 pc=0xa848b0 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc007096000, 0x133, 0x3, 0x20001440, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0) pkg/sentry/kernel/task_syscall.go:237 +0xb4 fp=0xc00727dd60 sp=0xc00727dd00 pc=0xa84394 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc007096000, 0x2, 0xc007096000) pkg/sentry/kernel/task_syscall.go:204 +0x198 fp=0xc00727de30 sp=0xc00727dd60 pc=0xa83c78 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc007096000, 0x15cdf80, 0x0) pkg/sentry/kernel/task_run.go:294 +0xd9a fp=0xc00727df68 sp=0xc00727de30 pc=0xa76b9a gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc007096000, 0x64d4) pkg/sentry/kernel/task_run.go:98 +0x1b9 fp=0xc00727dfd0 sp=0xc00727df68 pc=0xa75959 runtime.goexit() src/runtime/asm_amd64.s:1371 +0x1 fp=0xc00727dfd8 sp=0xc00727dfd0 pc=0x472861 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:398 +0x116