panic: addresses 224.0.0.2 and fe80::aa do not have the same length goroutine 1029592 [running]: panic({0xfe3400, 0xc0069cb400}) GOROOT/src/runtime/panic.go:941 +0x397 fp=0xc000b60c90 sp=0xc000b60bd0 pc=0x435837 gvisor.dev/gvisor/pkg/tcpip.Address.MatchingPrefix({0xc002c7d65c?, 0x18?}, {0xc000455780, 0x10}) pkg/tcpip/tcpip.go:176 +0x1c8 fp=0xc000b60cf8 sp=0xc000b60c90 pc=0x6b3bc8 gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).acquireOutgoingPrimaryAddressRLocked.func1({0x140fe50, 0xc0005b6500}) pkg/tcpip/network/ipv6/ipv6.go:2034 +0x109 fp=0xc000b60de0 sp=0xc000b60cf8 pc=0xb90ca9 gvisor.dev/gvisor/pkg/tcpip/stack.(*AddressableEndpointState).ForEachPrimaryEndpoint(0xc000971c40, 0xc000b60ed0) pkg/tcpip/stack/addressable_endpoint_state.go:123 +0xec fp=0xc000b60e38 sp=0xc000b60de0 pc=0x96ca2c gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).acquireOutgoingPrimaryAddressRLocked(0x0?, {0xc002c7d65c, 0x4}, 0x7d?) pkg/tcpip/network/ipv6/ipv6.go:2014 +0xf9 fp=0xc000b60f68 sp=0xc000b60e38 pc=0xb90479 gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).AcquireOutgoingPrimaryAddress(0xc000971600, {0xc002c7d65c, 0x4}, 0xf8?) pkg/tcpip/network/ipv6/ipv6.go:1968 +0xb9 fp=0xc000b60fc8 sp=0xc000b60f68 pc=0xb900d9 gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).primaryEndpoint(0xc00050e400, 0x1?, {0xc002c7d65c, 0x4}) pkg/tcpip/stack/nic.go:440 +0x112 fp=0xc000b61028 sp=0xc000b60fc8 pc=0x987a12 gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).getAddressEP(0xc00b382900?, 0xc00b382900?, {0x0?, 0xc00b382a20?}, {0xc002c7d65c?, 0xc0020b6480?}, 0x971628?) pkg/tcpip/stack/stack.go:1143 +0x48 fp=0xc000b61068 sp=0xc000b61028 pc=0x99ad08 gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).FindRoute.func1(0xc000257c00, {0xc002c7d65c, 0x4}, 0x0, {0x0, 0x0}, 0x8?, 0x0, 0x1?, 0x1, ...) pkg/tcpip/stack/stack.go:1333 +0x309 fp=0xc000b61208 sp=0xc000b61068 pc=0x99c949 gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).FindRoute(0xc000257c00, 0x0, {0x0, 0x0}, {0xc002c7d65c, 0x4}, 0x10?, 0x0?) pkg/tcpip/stack/stack.go:1359 +0x6db fp=0xc000b61400 sp=0xc000b61208 pc=0x99bdfb gvisor.dev/gvisor/pkg/tcpip/transport/internal/network.(*Endpoint).SetSockOpt(0xc00150c620, {0x13f8400?, 0xc00b382b10}) pkg/tcpip/transport/internal/network/endpoint.go:926 +0x7e5 fp=0xc000b61658 sp=0xc000b61400 pc=0xb1a545 gvisor.dev/gvisor/pkg/tcpip/transport/raw.(*endpoint).SetSockOpt(0x20000e0?, {0x13f8400?, 0xc00b382b10?}) pkg/tcpip/transport/raw/endpoint.go:498 +0x1f8 fp=0xc000b616b0 sp=0xc000b61658 pc=0xb244d8 gvisor.dev/gvisor/pkg/sentry/socket/netstack.setSockOptIP(0xc004624000, {0x14110f8, 0xc011be8c40}, {0x3f5b869cc4d8, 0xc00150c600}, 0x23, {0xc004624944, 0xc, 0x90}) pkg/sentry/socket/netstack/netstack.go:2464 +0xe82 fp=0xc000b61768 sp=0xc000b616b0 pc=0xbbf3e2 gvisor.dev/gvisor/pkg/sentry/socket/netstack.SetSockOpt(0x0?, {0x14110f8?, 0xc011be8c40?}, {0x3f5b869cc4d8?, 0xc00150c600?}, 0x90?, 0x140fa10?, {0xc004624944, 0xc, 0x90}) pkg/sentry/socket/netstack/netstack.go:1804 +0xb0 fp=0xc000b617c0 sp=0xc000b61768 pc=0xbbb3b0 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*SocketVFS2).SetSockOpt(0xc011be8c40, 0x14196f8?, 0x0, 0x23, {0xc004624944, 0xc, 0x90}) pkg/sentry/socket/netstack/netstack_vfs2.go:268 +0x2e7 fp=0xc000b61878 sp=0xc000b617c0 pc=0xbc7587 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.SetSockOpt(0xc004624000, {{0x4}, {0x0}, {0x23}, {0x20000000}, {0xc}, {0x0}}) pkg/sentry/syscalls/linux/vfs2/socket.go:552 +0x2bb fp=0xc000b61958 sp=0xc000b61878 pc=0xd0615b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc004624000, 0x36, {{0x4}, {0x0}, {0x23}, {0x20000000}, {0xc}, {0x0}}) pkg/sentry/kernel/task_syscall.go:142 +0x7d0 fp=0xc000b61c98 sp=0xc000b61958 pc=0xa28870 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc004624000, 0x0?, {{0x4}, {0x0}, {0x23}, {0x20000000}, {0xc}, {0x0}}) pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc000b61cf8 sp=0xc000b61c98 pc=0xa29e34 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0002f4400?, 0xc000b61e40?, {{0x4}, {0x0}, {0x23}, {0x20000000}, {0xc}, {0x0}}) pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc000b61d58 sp=0xc000b61cf8 pc=0xa29a25 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc004624000) pkg/sentry/kernel/task_syscall.go:257 +0x3b5 fp=0xc000b61e50 sp=0xc000b61d58 pc=0xa296f5 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc00a2af180?, 0xc004624000) pkg/sentry/kernel/task_run.go:253 +0x1145 fp=0xc000b61f60 sp=0xc000b61e50 pc=0xa1b505 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc004624000, 0x8039) pkg/sentry/kernel/task_run.go:94 +0x1ec fp=0xc000b61fc0 sp=0xc000b61f60 pc=0xa19d2c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1() pkg/sentry/kernel/task_start.go:370 +0x2a fp=0xc000b61fe0 sp=0xc000b61fc0 pc=0xa26d4a runtime.goexit() src/runtime/asm_amd64.s:1571 +0x1 fp=0xc000b61fe8 sp=0xc000b61fe0 pc=0x469321 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:370 +0x105