panic: header.ScopeForIPv6Address(172.20.20.170): bad address

goroutine 512 [running]:
panic(0xfc1ea0, 0xc0005b0620)
	GOROOT/src/runtime/panic.go:1064 +0x470 fp=0xc0007bcf30 sp=0xc0007bce78 pc=0x437030
gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).acquireOutgoingPrimaryAddressRLocked(0xc000216000, 0xc00060a67c, 0x4, 0xc0007bd000, 0x40b80a, 0x106b120)
	pkg/tcpip/network/ipv6/ipv6.go:1339 +0x387 fp=0xc0007bd028 sp=0xc0007bcf30 pc=0xb044c7
gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).AcquireOutgoingPrimaryAddress(0xc000216000, 0xc00060a67c, 0x4, 0x7fea35af6500, 0x0, 0x0)
	pkg/tcpip/network/ipv6/ipv6.go:1293 +0x8b fp=0xc0007bd080 sp=0xc0007bd028 pc=0xb040cb
gvisor.dev/gvisor/pkg/tcpip/stack.(*NIC).primaryEndpoint(0xc00063c480, 0x86dd, 0xc00060a67c, 0x4, 0xc0001ea100, 0x7fea35b5a718)
	pkg/tcpip/stack/nic.go:340 +0x116 fp=0xc0007bd0d8 sp=0xc0007bd080 pc=0x929556
gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).getAddressEP(0xc0001ceb00, 0xc00063c480, 0x0, 0x0, 0xc00060a67c, 0x4, 0x86dd, 0x0, 0x0)
	pkg/tcpip/stack/stack.go:1212 +0x58 fp=0xc0007bd128 sp=0xc0007bd0d8 pc=0x935098
gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).FindRoute(0xc0001ceb00, 0x0, 0x0, 0x0, 0xc00060a67c, 0x4, 0x86dd, 0x0, 0x0)
	pkg/tcpip/stack/stack.go:1362 +0xd32 fp=0xc0007bd3d0 sp=0xc0007bd128 pc=0x9363d2
gvisor.dev/gvisor/pkg/tcpip/transport/raw.(*endpoint).write(0xc0004fa000, 0x12eb060, 0xc0006436d0, 0xc0004f42a0, 0x0, 0x105b460, 0xc0004fa001, 0xc0006436d0)
	pkg/tcpip/transport/raw/endpoint.go:336 +0x14b fp=0xc0007bd4d8 sp=0xc0007bd3d0 pc=0xaa484b
gvisor.dev/gvisor/pkg/tcpip/transport/raw.(*endpoint).Write(0xc0004fa000, 0x12eb060, 0xc0006436d0, 0xc0004f42a0, 0xc000000000, 0x4, 0x0, 0x2)
	pkg/tcpip/transport/raw/endpoint.go:230 +0x72 fp=0xc0007bd528 sp=0xc0007bd4d8 pc=0xaa4572
gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*socketOpsCommon).SendMsg(0xc0004fc070, 0xc00063f500, 0x1305f20, 0xc0004be000, 0x0, 0x0, 0x0, 0x0, 0x100, 0xc000458300, ...)
	pkg/sentry/socket/netstack/netstack.go:3004 +0x19d fp=0xc0007bd818 sp=0xc0007bd528 pc=0xb23add
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.sendSingleMsg(0xc00063f500, 0x7fea35b5a580, 0xc0004fc000, 0xc0004fc000, 0x20000480, 0x0, 0x20000000, 0x3e, 0x7fffffff0058)
	pkg/sentry/syscalls/linux/vfs2/socket.go:1056 +0x3c2 fp=0xc0007bda58 sp=0xc0007bd818 pc=0xd981e2
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.SendMsg(0xc00063f500, 0x3, 0x20000480, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/vfs2/socket.go:934 +0x225 fp=0xc0007bdaf8 sp=0xc0007bda58 pc=0xd975e5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00063f500, 0x2e, 0x3, 0x20000480, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1195840, ...)
	pkg/sentry/kernel/task_syscall.go:104 +0x13c fp=0xc0007bdc58 sp=0xc0007bdaf8 pc=0x9cc11c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00063f500, 0x2e, 0x3, 0x20000480, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1)
	pkg/sentry/kernel/task_syscall.go:239 +0x66 fp=0xc0007bdce0 sp=0xc0007bdc58 pc=0x9cd2e6
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00063f500, 0x2e, 0x3, 0x20000480, 0x0, 0x0, 0x1, 0x1, 0xdde205, 0xc0005de7a8)
	pkg/sentry/kernel/task_syscall.go:199 +0x98 fp=0xc0007bdd40 sp=0xc0007bdce0 pc=0x9cce98
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00063f500, 0x2, 0xc00063f500)
	pkg/sentry/kernel/task_syscall.go:174 +0x15c fp=0xc0007bde10 sp=0xc0007bdd40 pc=0x9cc83c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc00063f500, 0x12dd3e0, 0x0)
	pkg/sentry/kernel/task_run.go:282 +0xc45 fp=0xc0007bdf60 sp=0xc0007bde10 pc=0x9c0c85
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00063f500, 0xb)
	pkg/sentry/kernel/task_run.go:97 +0x1af fp=0xc0007bdfd0 sp=0xc0007bdf60 pc=0x9bf94f
runtime.goexit()
	src/runtime/asm_amd64.s:1374 +0x1 fp=0xc0007bdfd8 sp=0xc0007bdfd0 pc=0x4705a1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:323 +0xfe