Bug#64576: segfaults in busybox

[Matt Kraai <kraai@alumni.carnegiemellon.edu>]

Package: boot-floppies
Version: 2.2.13

Howdy,

The following invocations of busybox result in segfaults.  These appear
to be due to the convention of argument parsing which doesn't ensure
that the current argv is not null before dereferencing it.  None of
these are high priority, as they are all invalid invocations.  But
segfaults aren't nice.  Here are the offending command lines:

chmod -R
chown -R
chgrp -R
cp -a -a
ln -s -s
rm -f
touch -c

I believe that update and swaponoff are also broken.

Later,
 Matt