panic: addresses 224.0.0.2 and fe80::aa do not have the same length goroutine 1773398 [running]: panic({0xfe3400, 0xc00a280920}) GOROOT/src/runtime/panic.go:941 +0x397 fp=0xc00174cc90 sp=0xc00174cbd0 pc=0x435837 gvisor.dev/gvisor/pkg/tcpip.Address.MatchingPrefix({0xc00b07fa0c?, 0x4df8c7?}, {0xc00039b180, 0x10}) pkg/tcpip/tcpip.go:176 +0x1c8 fp=0xc00174ccf8 sp=0xc00174cc90 pc=0x6b3bc8 gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).acquireOutgoingPrimaryAddressRLocked.func1({0x140fe50, 0xc000143360}) pkg/tcpip/network/ipv6/ipv6.go:2034 +0x109 fp=0xc00174cde0 sp=0xc00174ccf8 pc=0xb90ca9 gvisor.dev/gvisor/pkg/tcpip/stack.(*AddressableEndpointState).ForEachPrimaryEndpoint(0xc000acaa40, 0xc00174ced0) pkg/tcpip/stack/addressable_endpoint_state.go:123 +0xec fp=0xc00174ce38 sp=0xc00174cde0 pc=0x96ca2c gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).acquireOutgoingPrimaryAddressRLocked(0x1166f80?, {0xc00b07fa0c, 0x4}, 0x14?) pkg/tcpip/network/ipv6/ipv6.go:2014 +0xf9 fp=0xc00174cf68 sp=0xc00174ce38 pc=0xb90479 gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).AcquireOutgoingPrimaryAddress(0xc000aca400, {0xc00b07fa0c, 0x4}, 0x0?) pkg/tcpip/network/ipv6/ipv6.go:1968 +0xb9 fp=0xc00174cfc8 sp=0xc00174cf68 pc=0xb900d9 gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).primaryEndpoint(0xc0000d4400, 0x5?, {0xc00b07fa0c, 0x4}) pkg/tcpip/stack/nic.go:440 +0x112 fp=0xc00174d028 sp=0xc00174cfc8 pc=0x987a12 gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).getAddressEP(0x45101c?, 0x472c1e?, {0x0?, 0xc00174d0a8?}, {0xc00b07fa0c?, 0x5?}, 0x3?) pkg/tcpip/stack/stack.go:1143 +0x48 fp=0xc00174d068 sp=0xc00174d028 pc=0x99ad08 gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).FindRoute.func1(0xc00012d800, {0xc00b07fa0c, 0x4}, 0x0, {0x0, 0x0}, 0x200000c0?, 0x0, 0x0?, 0x1, ...) pkg/tcpip/stack/stack.go:1333 +0x309 fp=0xc00174d208 sp=0xc00174d068 pc=0x99c949 gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).FindRoute(0xc00012d800, 0x0, {0x0, 0x0}, {0xc00b07fa0c, 0x4}, 0x7004090?, 0xc0?) pkg/tcpip/stack/stack.go:1359 +0x6db fp=0xc00174d400 sp=0xc00174d208 pc=0x99bdfb gvisor.dev/gvisor/pkg/tcpip/transport/internal/network.(*Endpoint).SetSockOpt(0xc003fce020, {0x13f8400?, 0xc0087dfe60}) pkg/tcpip/transport/internal/network/endpoint.go:926 +0x7e5 fp=0xc00174d658 sp=0xc00174d400 pc=0xb1a545 gvisor.dev/gvisor/pkg/tcpip/transport/raw.(*endpoint).SetSockOpt(0x20000e0?, {0x13f8400?, 0xc0087dfe60?}) pkg/tcpip/transport/raw/endpoint.go:498 +0x1f8 fp=0xc00174d6b0 sp=0xc00174d658 pc=0xb244d8 gvisor.dev/gvisor/pkg/sentry/socket/netstack.setSockOptIP(0xc003acca80, {0x14110f8, 0xc00b36fea0}, {0x3f9807662118, 0xc003fce000}, 0x23, {0xc003acd3c4, 0xc, 0x90}) pkg/sentry/socket/netstack/netstack.go:2464 +0xe82 fp=0xc00174d768 sp=0xc00174d6b0 pc=0xbbf3e2 gvisor.dev/gvisor/pkg/sentry/socket/netstack.SetSockOpt(0x0?, {0x14110f8?, 0xc00b36fea0?}, {0x3f9807662118?, 0xc003fce000?}, 0x90?, 0x140fa10?, {0xc003acd3c4, 0xc, 0x90}) pkg/sentry/socket/netstack/netstack.go:1804 +0xb0 fp=0xc00174d7c0 sp=0xc00174d768 pc=0xbbb3b0 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*SocketVFS2).SetSockOpt(0xc00b36fea0, 0x14196f8?, 0x0, 0x23, {0xc003acd3c4, 0xc, 0x90}) pkg/sentry/socket/netstack/netstack_vfs2.go:268 +0x2e7 fp=0xc00174d878 sp=0xc00174d7c0 pc=0xbc7587 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.SetSockOpt(0xc003acca80, {{0x3}, {0x0}, {0x23}, {0x20000000}, {0xc}, {0x0}}) pkg/sentry/syscalls/linux/vfs2/socket.go:552 +0x2bb fp=0xc00174d958 sp=0xc00174d878 pc=0xd0615b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc003acca80, 0x36, {{0x3}, {0x0}, {0x23}, {0x20000000}, {0xc}, {0x0}}) pkg/sentry/kernel/task_syscall.go:142 +0x7d0 fp=0xc00174dc98 sp=0xc00174d958 pc=0xa28870 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc003acca80, 0x0?, {{0x3}, {0x0}, {0x23}, {0x20000000}, {0xc}, {0x0}}) pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc00174dcf8 sp=0xc00174dc98 pc=0xa29e34 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00035c400?, 0xc00174de40?, {{0x3}, {0x0}, {0x23}, {0x20000000}, {0xc}, {0x0}}) pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc00174dd58 sp=0xc00174dcf8 pc=0xa29a25 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc003acca80) pkg/sentry/kernel/task_syscall.go:257 +0x3b5 fp=0xc00174de50 sp=0xc00174dd58 pc=0xa296f5 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000d36b80?, 0xc003acca80) pkg/sentry/kernel/task_run.go:253 +0x1145 fp=0xc00174df60 sp=0xc00174de50 pc=0xa1b505 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc003acca80, 0xb573) pkg/sentry/kernel/task_run.go:94 +0x1ec fp=0xc00174dfc0 sp=0xc00174df60 pc=0xa19d2c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1() pkg/sentry/kernel/task_start.go:370 +0x2a fp=0xc00174dfe0 sp=0xc00174dfc0 pc=0xa26d4a runtime.goexit() src/runtime/asm_amd64.s:1571 +0x1 fp=0xc00174dfe8 sp=0xc00174dfe0 pc=0x469321 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:370 +0x105