[PATCH 0/1] MR9085: iphlpapi: Only read the part of dst that's valid.

[Yuxuan Shui (＠yshui)]

Although dst is a SOCKETADDR_INET *, the object it points to might be smaller than a full
SOCKETADDR_INET. One such example is GetBestInterface -> GetBestInterfaceEx -> GetBestRoute2, where
a socketaddr_in * (16 bytes) is casted to SOCKETADDR_INET * (28 bytes).

This means reading an full SOCKETADDR_INET out of dst could read out-of-bound.

Found by ASan.