From 5017500a4784942f50e9f6e6da13832bc19da11f Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 4 Sep 2018 09:06:23 -0400
Subject: [PATCH] add simple overflow tests

---
 test/simple-memory-corruption/Makefile               |  2 ++
 .../eight_byte_overflow_large.c                      | 12 ++++++++++++
 .../eight_byte_overflow_small.c                      | 12 ++++++++++++
 3 files changed, 26 insertions(+)
 create mode 100644 test/simple-memory-corruption/eight_byte_overflow_large.c
 create mode 100644 test/simple-memory-corruption/eight_byte_overflow_small.c

diff --git a/test/simple-memory-corruption/Makefile b/test/simple-memory-corruption/Makefile
index e3cf7e1..d3e35d7 100644
--- a/test/simple-memory-corruption/Makefile
+++ b/test/simple-memory-corruption/Makefile
@@ -18,6 +18,8 @@ EXECUTABLES := \
     uninitialized_free \
     uninitialized_realloc \
     uninitialized_malloc_usable_size \
+    eight_byte_overflow_small \
+    eight_byte_overflow_large \
 
 all: $(EXECUTABLES)
 
diff --git a/test/simple-memory-corruption/eight_byte_overflow_large.c b/test/simple-memory-corruption/eight_byte_overflow_large.c
new file mode 100644
index 0000000..f7253d6
--- /dev/null
+++ b/test/simple-memory-corruption/eight_byte_overflow_large.c
@@ -0,0 +1,12 @@
+#include <stdlib.h>
+
+__attribute__((optimize(0)))
+int main(void) {
+    char *p = malloc(128 * 1024);
+    if (!p) {
+        return 1;
+    }
+    *(p + 128 * 1024 + 7) = 0;
+    free(p);
+    return 0;
+}
diff --git a/test/simple-memory-corruption/eight_byte_overflow_small.c b/test/simple-memory-corruption/eight_byte_overflow_small.c
new file mode 100644
index 0000000..6270ac3
--- /dev/null
+++ b/test/simple-memory-corruption/eight_byte_overflow_small.c
@@ -0,0 +1,12 @@
+#include <stdlib.h>
+
+__attribute__((optimize(0)))
+int main(void) {
+    char *p = malloc(8);
+    if (!p) {
+        return 1;
+    }
+    *(p + 8 + 7) = 0;
+    free(p);
+    return 0;
+}