panic: header.ScopeForIPv6Address(172.20.20.170): bad address

goroutine 978 [running]:
panic(0xfc2f40, 0xc0004400b0)
	GOROOT/src/runtime/panic.go:1064 +0x470 fp=0xc0006a6f30 sp=0xc0006a6e78 pc=0x437030
gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).acquireOutgoingPrimaryAddressRLocked(0xc0000f7180, 0xc0004960d4, 0x4, 0xc0006a7000, 0x40b80a, 0x106c3a0)
	pkg/tcpip/network/ipv6/ipv6.go:1339 +0x387 fp=0xc0006a7028 sp=0xc0006a6f30 pc=0xb052e7
gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).AcquireOutgoingPrimaryAddress(0xc0000f7180, 0xc0004960d4, 0x4, 0x7f3fbf0bda00, 0x0, 0x0)
	pkg/tcpip/network/ipv6/ipv6.go:1293 +0x8b fp=0xc0006a7080 sp=0xc0006a7028 pc=0xb04eeb
gvisor.dev/gvisor/pkg/tcpip/stack.(*NIC).primaryEndpoint(0xc00019c180, 0x86dd, 0xc0004960d4, 0x4, 0xc00003a100, 0x3f3dff01d5f0)
	pkg/tcpip/stack/nic.go:340 +0x116 fp=0xc0006a70d8 sp=0xc0006a7080 pc=0x929556
gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).getAddressEP(0xc0004cab00, 0xc00019c180, 0x0, 0x0, 0xc0004960d4, 0x4, 0x86dd, 0x0, 0x0)
	pkg/tcpip/stack/stack.go:1212 +0x58 fp=0xc0006a7128 sp=0xc0006a70d8 pc=0x935098
gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).FindRoute(0xc0004cab00, 0x0, 0x0, 0x0, 0xc0004960d4, 0x4, 0x86dd, 0x0, 0x0)
	pkg/tcpip/stack/stack.go:1362 +0xd32 fp=0xc0006a73d0 sp=0xc0006a7128 pc=0x9363d2
gvisor.dev/gvisor/pkg/tcpip/transport/raw.(*endpoint).write(0xc000950000, 0x12ec280, 0xc00026c1e0, 0xc0001e07e0, 0x0, 0x105c500, 0xc000950001, 0xc00026c1e0)
	pkg/tcpip/transport/raw/endpoint.go:336 +0x14b fp=0xc0006a74d8 sp=0xc0006a73d0 pc=0xaa554b
gvisor.dev/gvisor/pkg/tcpip/transport/raw.(*endpoint).Write(0xc000950000, 0x12ec280, 0xc00026c1e0, 0xc0001e07e0, 0xc000000000, 0x4, 0x0, 0x2)
	pkg/tcpip/transport/raw/endpoint.go:230 +0x72 fp=0xc0006a7528 sp=0xc0006a74d8 pc=0xaa5272
gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*socketOpsCommon).SendMsg(0xc0007da1f0, 0xc000613500, 0x1307140, 0xc000221000, 0x0, 0x0, 0x0, 0x0, 0x100, 0xc000120000, ...)
	pkg/sentry/socket/netstack/netstack.go:2848 +0x19d fp=0xc0006a7818 sp=0xc0006a7528 pc=0xb23cbd
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.sendSingleMsg(0xc000613500, 0x3f3dff01d458, 0xc0007da180, 0xc0007da180, 0x20000480, 0xc000000000, 0xfff, 0x10001ff0000, 0x6a7a78)
	pkg/sentry/syscalls/linux/vfs2/socket.go:1056 +0x3c2 fp=0xc0006a7a58 sp=0xc0006a7818 pc=0xd983c2
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.SendMsg(0xc000613500, 0x3, 0x20000480, 0x0, 0x4, 0x1, 0x1, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/vfs2/socket.go:934 +0x225 fp=0xc0006a7af8 sp=0xc0006a7a58 pc=0xd977c5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000613500, 0x2e, 0x3, 0x20000480, 0x0, 0x4, 0x1, 0x1, 0xdd1257, 0x1196a00, ...)
	pkg/sentry/kernel/task_syscall.go:104 +0x13c fp=0xc0006a7c58 sp=0xc0006a7af8 pc=0x9cc13c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000613500, 0x2e, 0x3, 0x20000480, 0x0, 0x4, 0x1, 0x1, 0x1, 0x1)
	pkg/sentry/kernel/task_syscall.go:239 +0x66 fp=0xc0006a7ce0 sp=0xc0006a7c58 pc=0x9cd306
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000613500, 0x2e, 0x3, 0x20000480, 0x0, 0x4, 0x1, 0x1, 0x0, 0x0)
	pkg/sentry/kernel/task_syscall.go:199 +0x98 fp=0xc0006a7d40 sp=0xc0006a7ce0 pc=0x9cceb8
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000613500, 0x2, 0xc000613500)
	pkg/sentry/kernel/task_syscall.go:174 +0x15c fp=0xc0006a7e10 sp=0xc0006a7d40 pc=0x9cc85c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc000613500, 0x12de600, 0x0)
	pkg/sentry/kernel/task_run.go:282 +0xc45 fp=0xc0006a7f60 sp=0xc0006a7e10 pc=0x9c0ca5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000613500, 0x10)
	pkg/sentry/kernel/task_run.go:97 +0x1af fp=0xc0006a7fd0 sp=0xc0006a7f60 pc=0x9bf96f
runtime.goexit()
	src/runtime/asm_amd64.s:1374 +0x1 fp=0xc0006a7fd8 sp=0xc0006a7fd0 pc=0x4705a1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:323 +0xfe