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No reason, just looking at the code for setuid root programs installed in RHEL.

On Tue, Apr 24, 2018 at 12:50 PM, Greg Hudson via RT <rt-comment@krbdev.mit.edu> wrote:
If argc is 0, ksu should crash with a null dereference at line 144
where it does strlen() on argv[0].  I believe that happens with every
program in the MIT krb5 tree, but we have received reports of argc == 0
issues specifically for ksu twice this month, which seems odd.  Out of
curiosity, can you explain how you arrived at this issue?