1 files changed, 27 insertions, 0 deletions
diff --git a/test/asan/TestCases/Posix/strndup_oob_test.cc b/test/asan/TestCases/Posix/strndup_oob_test.cc
new file mode 100644
index 000000000000..7ea0b7a33400
--- /dev/null
+++ b/test/asan/TestCases/Posix/strndup_oob_test.cc
@@ -0,0 +1,27 @@
+// RUN: %clangxx_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
+// RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
+// RUN: %clangxx_asan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s
+// RUN: %clangxx_asan -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s
+
+// When built as C on Linux, strndup is transformed to __strndup.
+// RUN: %clangxx_asan -O3 -xc %s -o %t && not %run %t 2>&1 | FileCheck %s
+
+// Unwind problem on arm: "main" is missing from the allocation stack trace.
+// UNSUPPORTED: win32,s390,armv7l-unknown-linux-gnueabihf
+
+#include <string.h>
+
+char kString[] = "foo";
+
+int main(int argc, char **argv) {
+  char *copy = strndup(kString, 2);
+  int x = copy[2 + argc];  // BOOM
+  // CHECK: AddressSanitizer: heap-buffer-overflow
+  // CHECK: #0 {{.*}}main {{.*}}strndup_oob_test.cc:[[@LINE-2]]
+  // CHECK-LABEL: allocated by thread T{{.*}} here:
+  // CHECK: #{{[01]}} {{.*}}strndup
+  // CHECK: #{{.*}}main {{.*}}strndup_oob_test.cc:[[@LINE-6]]
+  // CHECK-LABEL: SUMMARY
+  // CHECK: strndup_oob_test.cc:[[@LINE-7]]
+  return x;
+}