panic: addresses 224.0.0.2 and fe80::aa do not have the same length goroutine 1150276 [running]: panic({0xfe3400, 0xc004bafc10}) GOROOT/src/runtime/panic.go:941 +0x397 fp=0xc001ae4c90 sp=0xc001ae4bd0 pc=0x435837 gvisor.dev/gvisor/pkg/tcpip.Address.MatchingPrefix({0xc01158e5bc?, 0x8e00000?}, {0xc000617f40, 0x10}) pkg/tcpip/tcpip.go:176 +0x1c8 fp=0xc001ae4cf8 sp=0xc001ae4c90 pc=0x6b3bc8 gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).acquireOutgoingPrimaryAddressRLocked.func1({0x140fe50, 0xc00057e6e0}) pkg/tcpip/network/ipv6/ipv6.go:2034 +0x109 fp=0xc001ae4de0 sp=0xc001ae4cf8 pc=0xb90ca9 gvisor.dev/gvisor/pkg/tcpip/stack.(*AddressableEndpointState).ForEachPrimaryEndpoint(0xc000227840, 0xc001ae4ed0) pkg/tcpip/stack/addressable_endpoint_state.go:123 +0xec fp=0xc001ae4e38 sp=0xc001ae4de0 pc=0x96ca2c gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).acquireOutgoingPrimaryAddressRLocked(0x62dd969c?, {0xc01158e5bc, 0x4}, 0x0?) pkg/tcpip/network/ipv6/ipv6.go:2014 +0xf9 fp=0xc001ae4f68 sp=0xc001ae4e38 pc=0xb90479 gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).AcquireOutgoingPrimaryAddress(0xc000227200, {0xc01158e5bc, 0x4}, 0x1?) pkg/tcpip/network/ipv6/ipv6.go:1968 +0xb9 fp=0xc001ae4fc8 sp=0xc001ae4f68 pc=0xb900d9 gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).primaryEndpoint(0xc0004b4400, 0x3?, {0xc01158e5bc, 0x4}) pkg/tcpip/stack/nic.go:440 +0x112 fp=0xc001ae5028 sp=0xc001ae4fc8 pc=0x987a12 gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).getAddressEP(0xc001ae50a8?, 0x40d4a5?, {0x0?, 0x3f57e1c0c8e0?}, {0xc01158e5bc?, 0x40d4a5?}, 0x11cf679?) pkg/tcpip/stack/stack.go:1143 +0x48 fp=0xc001ae5068 sp=0xc001ae5028 pc=0x99ad08 gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).FindRoute.func1(0xc0002fa300, {0xc01158e5bc, 0x4}, 0x0, {0x0, 0x0}, 0x140f548?, 0x0, 0x0?, 0x1, ...) pkg/tcpip/stack/stack.go:1333 +0x309 fp=0xc001ae5208 sp=0xc001ae5068 pc=0x99c949 gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).FindRoute(0xc0002fa300, 0x0, {0x0, 0x0}, {0xc01158e5bc, 0x4}, 0x50?, 0x0?) pkg/tcpip/stack/stack.go:1359 +0x6db fp=0xc001ae5400 sp=0xc001ae5208 pc=0x99bdfb gvisor.dev/gvisor/pkg/tcpip/transport/internal/network.(*Endpoint).SetSockOpt(0xc0054e2020, {0x13f8400?, 0xc00776c6f0}) pkg/tcpip/transport/internal/network/endpoint.go:926 +0x7e5 fp=0xc001ae5658 sp=0xc001ae5400 pc=0xb1a545 gvisor.dev/gvisor/pkg/tcpip/transport/raw.(*endpoint).SetSockOpt(0x20000e0?, {0x13f8400?, 0xc00776c6f0?}) pkg/tcpip/transport/raw/endpoint.go:498 +0x1f8 fp=0xc001ae56b0 sp=0xc001ae5658 pc=0xb244d8 gvisor.dev/gvisor/pkg/sentry/socket/netstack.setSockOptIP(0xc00d958000, {0x14110f8, 0xc0032d07e0}, {0x3f57e86fe608, 0xc0054e2000}, 0x23, {0xc00d958944, 0xc, 0x90}) pkg/sentry/socket/netstack/netstack.go:2464 +0xe82 fp=0xc001ae5768 sp=0xc001ae56b0 pc=0xbbf3e2 gvisor.dev/gvisor/pkg/sentry/socket/netstack.SetSockOpt(0x0?, {0x14110f8?, 0xc0032d07e0?}, {0x3f57e86fe608?, 0xc0054e2000?}, 0x90?, 0x140fa10?, {0xc00d958944, 0xc, 0x90}) pkg/sentry/socket/netstack/netstack.go:1804 +0xb0 fp=0xc001ae57c0 sp=0xc001ae5768 pc=0xbbb3b0 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*SocketVFS2).SetSockOpt(0xc0032d07e0, 0x14196f8?, 0x0, 0x23, {0xc00d958944, 0xc, 0x90}) pkg/sentry/socket/netstack/netstack_vfs2.go:268 +0x2e7 fp=0xc001ae5878 sp=0xc001ae57c0 pc=0xbc7587 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.SetSockOpt(0xc00d958000, {{0x6}, {0x0}, {0x23}, {0x20000000}, {0xc}, {0x0}}) pkg/sentry/syscalls/linux/vfs2/socket.go:552 +0x2bb fp=0xc001ae5958 sp=0xc001ae5878 pc=0xd0615b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00d958000, 0x36, {{0x6}, {0x0}, {0x23}, {0x20000000}, {0xc}, {0x0}}) pkg/sentry/kernel/task_syscall.go:142 +0x7d0 fp=0xc001ae5c98 sp=0xc001ae5958 pc=0xa28870 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00d958000, 0x0?, {{0x6}, {0x0}, {0x23}, {0x20000000}, {0xc}, {0x0}}) pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc001ae5cf8 sp=0xc001ae5c98 pc=0xa29e34 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00053e040?, 0xc001ae5e40?, {{0x6}, {0x0}, {0x23}, {0x20000000}, {0xc}, {0x0}}) pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc001ae5d58 sp=0xc001ae5cf8 pc=0xa29a25 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00d958000) pkg/sentry/kernel/task_syscall.go:257 +0x3b5 fp=0xc001ae5e50 sp=0xc001ae5d58 pc=0xa296f5 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc013936880?, 0xc00d958000) pkg/sentry/kernel/task_run.go:253 +0x1145 fp=0xc001ae5f60 sp=0xc001ae5e50 pc=0xa1b505 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00d958000, 0x5fe3) pkg/sentry/kernel/task_run.go:94 +0x1ec fp=0xc001ae5fc0 sp=0xc001ae5f60 pc=0xa19d2c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1() pkg/sentry/kernel/task_start.go:370 +0x2a fp=0xc001ae5fe0 sp=0xc001ae5fc0 pc=0xa26d4a runtime.goexit() src/runtime/asm_amd64.s:1571 +0x1 fp=0xc001ae5fe8 sp=0xc001ae5fe0 pc=0x469321 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:370 +0x105