#!/bin/sh
# DF-3023 evidence pack build/run
# build: cc -O2 -o df3023 trigger.c
# run   (as unprivileged user on the guest, /tmp is tmpfs):
#   ./df3023            -> probe (EFAULT) + kernel PANIC on INVARIANTS kernels
# success criterion: console shows
#   panic: assertion "newsize >= 0" failed in tmpfs_reg_resize
#     at /usr/src/sys/vfs/tmpfs/tmpfs_subr.c:990
#   (guest drops to db>; ssh dies; vm.sh status => down)
set -e
cc -O2 -o df3023 trigger.c
echo "built; run me as an unprivileged user on a system with a tmpfs /tmp"