panic: header.ScopeForIPv6Address(172.20.20.170): bad address

goroutine 495 [running]:
panic(0xfc1ea0, 0xc00025a050)
	GOROOT/src/runtime/panic.go:1064 +0x470 fp=0xc00076ef30 sp=0xc00076ee78 pc=0x437030
gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).acquireOutgoingPrimaryAddressRLocked(0xc0006cc380, 0xc0003a7a7c, 0x4, 0xc00076f000, 0x40b80a, 0x106b120)
	pkg/tcpip/network/ipv6/ipv6.go:1339 +0x387 fp=0xc00076f028 sp=0xc00076ef30 pc=0xb044c7
gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).AcquireOutgoingPrimaryAddress(0xc0006cc380, 0xc0003a7a7c, 0x4, 0x7f24b52a6100, 0x0, 0x0)
	pkg/tcpip/network/ipv6/ipv6.go:1293 +0x8b fp=0xc00076f080 sp=0xc00076f028 pc=0xb040cb
gvisor.dev/gvisor/pkg/tcpip/stack.(*NIC).primaryEndpoint(0xc00039a300, 0x86dd, 0xc0003a7a7c, 0x4, 0xc0002b2000, 0x7f24ba54fb30)
	pkg/tcpip/stack/nic.go:340 +0x116 fp=0xc00076f0d8 sp=0xc00076f080 pc=0x929556
gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).getAddressEP(0xc0001d0b00, 0xc00039a300, 0x0, 0x0, 0xc0003a7a7c, 0x4, 0x86dd, 0x0, 0x0)
	pkg/tcpip/stack/stack.go:1212 +0x58 fp=0xc00076f128 sp=0xc00076f0d8 pc=0x935098
gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).FindRoute(0xc0001d0b00, 0x0, 0x0, 0x0, 0xc0003a7a7c, 0x4, 0x86dd, 0x0, 0x0)
	pkg/tcpip/stack/stack.go:1362 +0xd32 fp=0xc00076f3d0 sp=0xc00076f128 pc=0x9363d2
gvisor.dev/gvisor/pkg/tcpip/transport/raw.(*endpoint).write(0xc0006cc540, 0x12eb060, 0xc000788eb0, 0xc000621a60, 0x0, 0x105b460, 0xc0006cc501, 0xc000788eb0)
	pkg/tcpip/transport/raw/endpoint.go:336 +0x14b fp=0xc00076f4d8 sp=0xc00076f3d0 pc=0xaa484b
gvisor.dev/gvisor/pkg/tcpip/transport/raw.(*endpoint).Write(0xc0006cc540, 0x12eb060, 0xc000788eb0, 0xc000621a60, 0xc000000000, 0x4, 0x0, 0x2)
	pkg/tcpip/transport/raw/endpoint.go:230 +0x72 fp=0xc00076f528 sp=0xc00076f4d8 pc=0xaa4572
gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*socketOpsCommon).SendMsg(0xc00078aaf0, 0xc00045ea80, 0x1305f20, 0xc0002aa000, 0x0, 0x0, 0x0, 0x0, 0x100, 0xc000462080, ...)
	pkg/sentry/socket/netstack/netstack.go:3004 +0x19d fp=0xc00076f818 sp=0xc00076f528 pc=0xb23add
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.sendSingleMsg(0xc00045ea80, 0x7f24ba54f998, 0xc00078aa80, 0xc00078aa80, 0x20000480, 0x0, 0x20000000, 0x3e, 0x7fffffff0058)
	pkg/sentry/syscalls/linux/vfs2/socket.go:1056 +0x3c2 fp=0xc00076fa58 sp=0xc00076f818 pc=0xd981e2
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.SendMsg(0xc00045ea80, 0x3, 0x20000480, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/vfs2/socket.go:934 +0x225 fp=0xc00076faf8 sp=0xc00076fa58 pc=0xd975e5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00045ea80, 0x2e, 0x3, 0x20000480, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1195840, ...)
	pkg/sentry/kernel/task_syscall.go:104 +0x13c fp=0xc00076fc58 sp=0xc00076faf8 pc=0x9cc11c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00045ea80, 0x2e, 0x3, 0x20000480, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1)
	pkg/sentry/kernel/task_syscall.go:239 +0x66 fp=0xc00076fce0 sp=0xc00076fc58 pc=0x9cd2e6
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00045ea80, 0x2e, 0x3, 0x20000480, 0x0, 0x0, 0x1, 0x1, 0xdde205, 0xc000226368)
	pkg/sentry/kernel/task_syscall.go:199 +0x98 fp=0xc00076fd40 sp=0xc00076fce0 pc=0x9cce98
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00045ea80, 0x2, 0xc00045ea80)
	pkg/sentry/kernel/task_syscall.go:174 +0x15c fp=0xc00076fe10 sp=0xc00076fd40 pc=0x9cc83c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc00045ea80, 0x12dd3e0, 0x0)
	pkg/sentry/kernel/task_run.go:282 +0xc45 fp=0xc00076ff60 sp=0xc00076fe10 pc=0x9c0c85
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00045ea80, 0x10)
	pkg/sentry/kernel/task_run.go:97 +0x1af fp=0xc00076ffd0 sp=0xc00076ff60 pc=0x9bf94f
runtime.goexit()
	src/runtime/asm_amd64.s:1374 +0x1 fp=0xc00076ffd8 sp=0xc00076ffd0 pc=0x4705a1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:323 +0xfe