1 files changed, 26 insertions, 0 deletions
diff --git a/tests/malloc_mmap_tst.c b/tests/malloc_mmap_tst.c
new file mode 100644
index 0000000..a1a15e1
--- /dev/null
+++ b/tests/malloc_mmap_tst.c
@@ -0,0 +1,26 @@
+/* Make sure programs that override mmap don't mess us up. #290249 */
+
+#include "headers.h"
+
+/* A few basic stubs that do nothing. */
+void *mmap(void *addr, size_t length, int prot, int flags, int fd, off_t offset)
+{
+	errno = ENOMEM;
+	return MAP_FAILED;
+}
+int munmap(void *addr, size_t length)
+{
+	errno = ENOMEM;
+	return -1;
+}
+
+int main(int argc, char *argv[])
+{
+	/* Don't loop forever. */
+	alarm(10);
+
+	/* Make sure we do an operation to trigger the sandbox. */
+	open("/dev/null", 0);
+
+	return 0;
+}