panic: header.ScopeForIPv6Address(172.20.20.170): bad address

goroutine 419 [running]:
panic(0xfc1ea0, 0xc0002047e0)
	GOROOT/src/runtime/panic.go:1064 +0x470 fp=0xc000650f30 sp=0xc000650e78 pc=0x437030
gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).acquireOutgoingPrimaryAddressRLocked(0xc0002421c0, 0xc00051e00c, 0x4, 0xc000651000, 0x40b80a, 0x106b120)
	pkg/tcpip/network/ipv6/ipv6.go:1339 +0x387 fp=0xc000651028 sp=0xc000650f30 pc=0xb044c7
gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).AcquireOutgoingPrimaryAddress(0xc0002421c0, 0xc00051e00c, 0x4, 0x7f2c22ec4400, 0x0, 0x0)
	pkg/tcpip/network/ipv6/ipv6.go:1293 +0x8b fp=0xc000651080 sp=0xc000651028 pc=0xb040cb
gvisor.dev/gvisor/pkg/tcpip/stack.(*NIC).primaryEndpoint(0xc000558780, 0x86dd, 0xc00051e00c, 0x4, 0xc0001fa100, 0x7f2c22edbb70)
	pkg/tcpip/stack/nic.go:340 +0x116 fp=0xc0006510d8 sp=0xc000651080 pc=0x929556
gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).getAddressEP(0xc0001deb00, 0xc000558780, 0x0, 0x0, 0xc00051e00c, 0x4, 0x86dd, 0x0, 0x0)
	pkg/tcpip/stack/stack.go:1212 +0x58 fp=0xc000651128 sp=0xc0006510d8 pc=0x935098
gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).FindRoute(0xc0001deb00, 0x0, 0x0, 0x0, 0xc00051e00c, 0x4, 0x86dd, 0x0, 0x0)
	pkg/tcpip/stack/stack.go:1362 +0xd32 fp=0xc0006513d0 sp=0xc000651128 pc=0x9363d2
gvisor.dev/gvisor/pkg/tcpip/transport/raw.(*endpoint).write(0xc000243180, 0x12eb060, 0xc000200ff0, 0xc00072c3c0, 0x0, 0x105b460, 0xc000243101, 0xc000200ff0)
	pkg/tcpip/transport/raw/endpoint.go:336 +0x14b fp=0xc0006514d8 sp=0xc0006513d0 pc=0xaa484b
gvisor.dev/gvisor/pkg/tcpip/transport/raw.(*endpoint).Write(0xc000243180, 0x12eb060, 0xc000200ff0, 0xc00072c3c0, 0xc000000000, 0x4, 0x0, 0x2)
	pkg/tcpip/transport/raw/endpoint.go:230 +0x72 fp=0xc000651528 sp=0xc0006514d8 pc=0xaa4572
gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*socketOpsCommon).SendMsg(0xc0005399f0, 0xc0006a1500, 0x1305f20, 0xc000010000, 0x0, 0x0, 0x0, 0x0, 0x100, 0xc000134700, ...)
	pkg/sentry/socket/netstack/netstack.go:3004 +0x19d fp=0xc000651818 sp=0xc000651528 pc=0xb23add
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.sendSingleMsg(0xc0006a1500, 0x7f2c22edb9d8, 0xc000539980, 0xc000539980, 0x20000480, 0x0, 0x20000000, 0x3e, 0x7fffffff0058)
	pkg/sentry/syscalls/linux/vfs2/socket.go:1056 +0x3c2 fp=0xc000651a58 sp=0xc000651818 pc=0xd981e2
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.SendMsg(0xc0006a1500, 0x3, 0x20000480, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/vfs2/socket.go:934 +0x225 fp=0xc000651af8 sp=0xc000651a58 pc=0xd975e5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0006a1500, 0x2e, 0x3, 0x20000480, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1195840, ...)
	pkg/sentry/kernel/task_syscall.go:104 +0x13c fp=0xc000651c58 sp=0xc000651af8 pc=0x9cc11c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0006a1500, 0x2e, 0x3, 0x20000480, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1)
	pkg/sentry/kernel/task_syscall.go:239 +0x66 fp=0xc000651ce0 sp=0xc000651c58 pc=0x9cd2e6
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0006a1500, 0x2e, 0x3, 0x20000480, 0x0, 0x0, 0x1, 0x1, 0xdde205, 0xc000662028)
	pkg/sentry/kernel/task_syscall.go:199 +0x98 fp=0xc000651d40 sp=0xc000651ce0 pc=0x9cce98
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0006a1500, 0x2, 0xc0006a1500)
	pkg/sentry/kernel/task_syscall.go:174 +0x15c fp=0xc000651e10 sp=0xc000651d40 pc=0x9cc83c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc0006a1500, 0x12dd3e0, 0x0)
	pkg/sentry/kernel/task_run.go:282 +0xc45 fp=0xc000651f60 sp=0xc000651e10 pc=0x9c0c85
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0006a1500, 0x11)
	pkg/sentry/kernel/task_run.go:97 +0x1af fp=0xc000651fd0 sp=0xc000651f60 pc=0x9bf94f
runtime.goexit()
	src/runtime/asm_amd64.s:1374 +0x1 fp=0xc000651fd8 sp=0xc000651fd0 pc=0x4705a1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:323 +0xfe