/usr/lib/gcc/arm-linux-gnueabi/4.6/hf/libgfortran.so is in gfortran-4.6-multilib-arm-linux-gnueabi 4.6.3-1ubuntu5cross1.62.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/gcc/arm-linux-gnueabi/4.6/hf/../../../../../arm-linux-gnueabi/lib/arm-linux-gnueabihf/libgfortran.so.3