arbitrary code execution via environment variables

[llua]

wondershaper/wondershaper

Lines 29 to 39 in 98792b5

	eval export HIPRIODST=$HIPRIODST;
	# shellcheck disable=SC2086
	eval export COMMONOPTIONS=$COMMONOPTIONS;
	# shellcheck disable=SC2086
	eval export NOPRIOHOSTSRC=$NOPRIOHOSTSRC;
	# shellcheck disable=SC2086
	eval export NOPRIOHOSTDST=$NOPRIOHOSTDST;
	# shellcheck disable=SC2086
	eval export NOPRIOPORTSRC=$NOPRIOPORTSRC;
	# shellcheck disable=SC2086
	eval export NOPRIOPORTDST=$NOPRIOPORTDST;

The above lines allow for code injection[0], which i am unsure is desired.

a minimal reproducer:

F='abc; bash' bash -c 'eval export F=$F; echo exiting'
[user@host ~]$ exit
exiting

[0] http://mywiki.wooledge.org/BashFAQ/048