panic: header.ScopeForIPv6Address(172.20.20.170): bad address

goroutine 396 [running]:
panic(0xfc1e60, 0xc00051c1d0)
	GOROOT/src/runtime/panic.go:1064 +0x470 fp=0xc000434f30 sp=0xc000434e78 pc=0x437030
gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).acquireOutgoingPrimaryAddressRLocked(0xc00003a700, 0xc00068bbec, 0x4, 0xc000435000, 0x40b80a, 0x106b060)
	pkg/tcpip/network/ipv6/ipv6.go:1339 +0x387 fp=0xc000435028 sp=0xc000434f30 pc=0xb04247
gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).AcquireOutgoingPrimaryAddress(0xc00003a700, 0xc00068bbec, 0x4, 0x7f17ec83b500, 0x0, 0x0)
	pkg/tcpip/network/ipv6/ipv6.go:1293 +0x8b fp=0xc000435080 sp=0xc000435028 pc=0xb03e4b
gvisor.dev/gvisor/pkg/tcpip/stack.(*NIC).primaryEndpoint(0xc000034540, 0x86dd, 0xc00068bbec, 0x4, 0xc000276100, 0x7f17ec48f578)
	pkg/tcpip/stack/nic.go:340 +0x116 fp=0xc0004350d8 sp=0xc000435080 pc=0x929556
gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).getAddressEP(0xc0002bc580, 0xc000034540, 0x0, 0x0, 0xc00068bbec, 0x4, 0x86dd, 0x0, 0x0)
	pkg/tcpip/stack/stack.go:1212 +0x58 fp=0xc000435128 sp=0xc0004350d8 pc=0x935098
gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).FindRoute(0xc0002bc580, 0x0, 0x0, 0x0, 0xc00068bbec, 0x4, 0x86dd, 0x0, 0x0)
	pkg/tcpip/stack/stack.go:1362 +0xd32 fp=0xc0004353d0 sp=0xc000435128 pc=0x9363d2
gvisor.dev/gvisor/pkg/tcpip/transport/raw.(*endpoint).write(0xc00003a8c0, 0x12eadc0, 0xc0000387d0, 0xc0002b6c20, 0x0, 0x105b3a0, 0xc00003a801, 0xc0000387d0)
	pkg/tcpip/transport/raw/endpoint.go:336 +0x14b fp=0xc0004354d8 sp=0xc0004353d0 pc=0xaa484b
gvisor.dev/gvisor/pkg/tcpip/transport/raw.(*endpoint).Write(0xc00003a8c0, 0x12eadc0, 0xc0000387d0, 0xc0002b6c20, 0xc000000000, 0x4, 0x0, 0x2)
	pkg/tcpip/transport/raw/endpoint.go:230 +0x72 fp=0xc000435528 sp=0xc0004354d8 pc=0xaa4572
gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*socketOpsCommon).SendMsg(0xc00002c7f0, 0xc000368a80, 0x1305c40, 0xc000616000, 0x0, 0x0, 0x0, 0x0, 0x100, 0xc0001bc380, ...)
	pkg/sentry/socket/netstack/netstack.go:3004 +0x19d fp=0xc000435818 sp=0xc000435528 pc=0xb2385d
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.sendSingleMsg(0xc000368a80, 0x7f17ec48f3e0, 0xc00002c780, 0xc00002c780, 0x20000480, 0x0, 0x20000000, 0x3e, 0x7fffffff0058)
	pkg/sentry/syscalls/linux/vfs2/socket.go:1056 +0x3c2 fp=0xc000435a58 sp=0xc000435818 pc=0xd97bc2
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.SendMsg(0xc000368a80, 0x3, 0x20000480, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/vfs2/socket.go:934 +0x225 fp=0xc000435af8 sp=0xc000435a58 pc=0xd96fc5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000368a80, 0x2e, 0x3, 0x20000480, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1195680, ...)
	pkg/sentry/kernel/task_syscall.go:104 +0x13c fp=0xc000435c58 sp=0xc000435af8 pc=0x9cc11c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000368a80, 0x2e, 0x3, 0x20000480, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1)
	pkg/sentry/kernel/task_syscall.go:239 +0x66 fp=0xc000435ce0 sp=0xc000435c58 pc=0x9cd2e6
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000368a80, 0x2e, 0x3, 0x20000480, 0x0, 0x0, 0x1, 0x1, 0xdddbe5, 0xc0007a2368)
	pkg/sentry/kernel/task_syscall.go:199 +0x98 fp=0xc000435d40 sp=0xc000435ce0 pc=0x9cce98
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000368a80, 0x2, 0xc000368a80)
	pkg/sentry/kernel/task_syscall.go:174 +0x15c fp=0xc000435e10 sp=0xc000435d40 pc=0x9cc83c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc000368a80, 0x12dd140, 0x0)
	pkg/sentry/kernel/task_run.go:282 +0xc45 fp=0xc000435f60 sp=0xc000435e10 pc=0x9c0c85
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000368a80, 0xf)
	pkg/sentry/kernel/task_run.go:97 +0x1af fp=0xc000435fd0 sp=0xc000435f60 pc=0x9bf94f
runtime.goexit()
	src/runtime/asm_amd64.s:1374 +0x1 fp=0xc000435fd8 sp=0xc000435fd0 pc=0x4705a1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:323 +0xfe