panic: header.ScopeForIPv6Address(172.20.20.170): bad address goroutine 363 [running]: panic(0xfc1ea0, 0xc00014e420) GOROOT/src/runtime/panic.go:1064 +0x470 fp=0xc000034f30 sp=0xc000034e78 pc=0x437030 gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).acquireOutgoingPrimaryAddressRLocked(0xc0002c3180, 0xc00060431c, 0x4, 0xc000035000, 0x40b80a, 0x106b120) pkg/tcpip/network/ipv6/ipv6.go:1339 +0x387 fp=0xc000035028 sp=0xc000034f30 pc=0xb044c7 gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).AcquireOutgoingPrimaryAddress(0xc0002c3180, 0xc00060431c, 0x4, 0x7f60581d2600, 0x0, 0x0) pkg/tcpip/network/ipv6/ipv6.go:1293 +0x8b fp=0xc000035080 sp=0xc000035028 pc=0xb040cb gvisor.dev/gvisor/pkg/tcpip/stack.(*NIC).primaryEndpoint(0xc0005e6480, 0x86dd, 0xc00060431c, 0x4, 0xc000364000, 0x7f60581e4000) pkg/tcpip/stack/nic.go:340 +0x116 fp=0xc0000350d8 sp=0xc000035080 pc=0x929556 gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).getAddressEP(0xc000510b00, 0xc0005e6480, 0x0, 0x0, 0xc00060431c, 0x4, 0x86dd, 0x0, 0x0) pkg/tcpip/stack/stack.go:1212 +0x58 fp=0xc000035128 sp=0xc0000350d8 pc=0x935098 gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).FindRoute(0xc000510b00, 0x0, 0x0, 0x0, 0xc00060431c, 0x4, 0x86dd, 0x0, 0x0) pkg/tcpip/stack/stack.go:1362 +0xd32 fp=0xc0000353d0 sp=0xc000035128 pc=0x9363d2 gvisor.dev/gvisor/pkg/tcpip/transport/raw.(*endpoint).write(0xc0002c36c0, 0x12eb060, 0xc0003d8460, 0xc0004533c0, 0x0, 0x105b460, 0xc0002c3601, 0xc0003d8460) pkg/tcpip/transport/raw/endpoint.go:336 +0x14b fp=0xc0000354d8 sp=0xc0000353d0 pc=0xaa484b gvisor.dev/gvisor/pkg/tcpip/transport/raw.(*endpoint).Write(0xc0002c36c0, 0x12eb060, 0xc0003d8460, 0xc0004533c0, 0xc000000000, 0x4, 0x0, 0x2) pkg/tcpip/transport/raw/endpoint.go:230 +0x72 fp=0xc000035528 sp=0xc0000354d8 pc=0xaa4572 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*socketOpsCommon).SendMsg(0xc000287cf0, 0xc000197500, 0x1305f20, 0xc000276000, 0x0, 0x0, 0x0, 0x0, 0x100, 0xc000132780, ...) pkg/sentry/socket/netstack/netstack.go:3004 +0x19d fp=0xc000035818 sp=0xc000035528 pc=0xb23add gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.sendSingleMsg(0xc000197500, 0x7f60581e3e68, 0xc000287c80, 0xc000287c80, 0x20000480, 0x0, 0x20000000, 0x3e, 0x7fffffff0058) pkg/sentry/syscalls/linux/vfs2/socket.go:1056 +0x3c2 fp=0xc000035a58 sp=0xc000035818 pc=0xd981e2 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.SendMsg(0xc000197500, 0x3, 0x20000480, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, ...) pkg/sentry/syscalls/linux/vfs2/socket.go:934 +0x225 fp=0xc000035af8 sp=0xc000035a58 pc=0xd975e5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000197500, 0x2e, 0x3, 0x20000480, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1195840, ...) pkg/sentry/kernel/task_syscall.go:104 +0x13c fp=0xc000035c58 sp=0xc000035af8 pc=0x9cc11c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000197500, 0x2e, 0x3, 0x20000480, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1) pkg/sentry/kernel/task_syscall.go:239 +0x66 fp=0xc000035ce0 sp=0xc000035c58 pc=0x9cd2e6 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000197500, 0x2e, 0x3, 0x20000480, 0x0, 0x0, 0x1, 0x1, 0xdde205, 0xc0002ac068) pkg/sentry/kernel/task_syscall.go:199 +0x98 fp=0xc000035d40 sp=0xc000035ce0 pc=0x9cce98 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000197500, 0x2, 0xc000197500) pkg/sentry/kernel/task_syscall.go:174 +0x15c fp=0xc000035e10 sp=0xc000035d40 pc=0x9cc83c gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc000197500, 0x12dd3e0, 0x0) pkg/sentry/kernel/task_run.go:282 +0xc45 fp=0xc000035f60 sp=0xc000035e10 pc=0x9c0c85 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000197500, 0x10) pkg/sentry/kernel/task_run.go:97 +0x1af fp=0xc000035fd0 sp=0xc000035f60 pc=0x9bf94f runtime.goexit() src/runtime/asm_amd64.s:1374 +0x1 fp=0xc000035fd8 sp=0xc000035fd0 pc=0x4705a1 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:323 +0xfe