In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/html/axis-cgi/call_overlay_del.cgi line 10:

if ./overlay_del.cgi $*; then

                     ^-- SC2048 (warning): Use "$@" (with quotes) to prevent whitespace problems.

                     ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean: 

if ./overlay_del.cgi "$*"; then

For more information:

  https://www.shellcheck.net/wiki/SC2048 -- Use "$@" (with quotes) to prevent...

  https://www.shellcheck.net/wiki/SC2086 -- Double quote to prevent globbing ...