/lib/firmware/nvidia/gp107/sec2/sig.bin is in linux-firmware 1.173.
This file is owned by root:root, with mode 0o777.
It is a symlink to /lib/firmware/nvidia/gp107/sec2/../../gp102/sec2/sig.bin
/lib/firmware/nvidia/gp107/sec2/../../gp102/sec2/sig.bin