NaCl docs: add sanitizers to GSoC ideas

native_client_sdk/src/doc/reference/ideas.rst

Index: native_client_sdk/src/doc/reference/ideas.rst
diff --git a/native_client_sdk/src/doc/reference/ideas.rst b/native_client_sdk/src/doc/reference/ideas.rst
index c9a3bfb31910b3ab17f76561327732d510826c4a..5ce2ec4d6a2e3ec4cebac0f644e1ab9eb54b29a6 100644
--- a/native_client_sdk/src/doc/reference/ideas.rst
+++ b/native_client_sdk/src/doc/reference/ideas.rst
@@ -323,6 +323,22 @@ Security-enhanced PNaCl
 * **Knowledge Prerequisite:** Security.
 * **Mentor:** JF Bastien.
 
+Sanitizer Support
+^^^^^^^^^^^^^^^^^
+
+* **Project:** Sanitizer support for untrusted code.
+* **Brief explanation:** LLVM supports many sanitizers_ for C/C++ using the
+  ``-fsanitize=<name>``. Some of these sanitizers currently work, and some don't
+  because they use clever tricks to perform their work, such as using ``mmap``
+  to allocate a special shadow memory region with a specific address. This
+  project requires adding full support to all of LLVM's sanitizers for untrusted
+  user code within PNaCl.
+* **Expected results:** The sanitizer tests successfully run as untrusted code
+  within PNaCl.
+* **Knowledge Prerequisite:** Compilers.
+* **Mentor:** JF Bastien.
+
+.. _sanitizers: http://clang.llvm.org/docs/UsersManual.html#controlling-code-generation
 
 NaCl
 ----