Bug#17296644 CONV(X, INT_MIN, INT_MIN) SEGFAULTS THE SERVER

Do not call abs(INT_MIN) as the result is undefined.

configure.cmake

@@ -147,6 +147,10 @@ IF(UNIX)
 
   SET(CMAKE_REQUIRED_LIBRARIES 
     ${LIBM} ${LIBNSL} ${LIBBIND} ${LIBCRYPT} ${LIBSOCKET} ${LIBDL} ${CMAKE_THREAD_LIBS_INIT} ${LIBRT})
+  # Need explicit pthread for gcc -fsanitize=address
+  IF(CMAKE_USE_PTHREADS_INIT AND CMAKE_C_FLAGS MATCHES "-fsanitize=")
+    SET(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} pthread)
+  ENDIF()
 
   LIST(LENGTH CMAKE_REQUIRED_LIBRARIES required_libs_length)
   IF(${required_libs_length} GREATER 0)

sql/item_strfunc.cc

 /*
-   Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
+   Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -2928,7 +2928,9 @@ String *Item_func_conv::val_str(String *str)
   int to_base= (int) args[2]->val_int();
   int err;
 
+  // Note that abs(INT_MIN) is undefined.
   if (args[0]->null_value || args[1]->null_value || args[2]->null_value ||
+      from_base == INT_MIN || to_base == INT_MIN ||
       abs(to_base) > 36 || abs(to_base) < 2 ||
       abs(from_base) > 36 || abs(from_base) < 2 || !(res->length()))
   {