From 6efb555132586352958e2d91bc6ec06444ac7c3d Mon Sep 17 00:00:00 2001
From: Leah Neukirchen <leah@vuxu.org>
Date: Mon, 31 Jul 2017 16:16:02 +0200
Subject: crash on dlopen

---
 fail.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'fail.c')

diff --git a/fail.c b/fail.c
index a08253a..90f6cb7 100644
--- a/fail.c
+++ b/fail.c
@@ -2,6 +2,7 @@
 
 #include <linux/seccomp.h>
 
+#include <sys/auxv.h>
 #include <sys/prctl.h>
 #include <sys/ptrace.h>
 #include <sys/stat.h>
@@ -20,6 +21,19 @@ segfault()
 	*nullp = 42;
 }
 
+void _start();
+
+__attribute__((__constructor__))
+void
+dlcrash()
+{
+	volatile int *nullp = 0;
+
+	// don't trigger if we are executed as a program
+	if (getauxval(AT_ENTRY) != (unsigned long)_start)
+		*nullp = 1337;
+}
+
 // can lockup your machine
 void
 oom()
-- 
cgit 1.4.1