[PATCH] Prevent out-of-bounds access (PR sanitizer/59258)

[Marek Polacek]

This fixes a thinko of mine: when I added another two elements to the
ubsan data structure, I forgot to increase the size of the array.

Alternatively, I could use an alloca for this (VLAs issue a warning
in C++03 and are thus no-go :().

I don't have a simple testcase for this.  Valgrind/asan would be
needed.

Ran the testsuite.  Ok for trunk?

2013-11-25  Marek Polacek  <polacek@redhat.com>

	* ubsan.c (ubsan_create_data): Increase the size of the fields array.

--- gcc/ubsan.c.mp3	2013-11-25 10:13:41.995328200 +0100
+++ gcc/ubsan.c	2013-11-25 10:19:10.068560008 +0100
@@ -387,7 +387,7 @@ ubsan_create_data (const char *name, loc
 {
   va_list args;
   tree ret, t;
-  tree fields[3];
+  tree fields[5];
   vec<tree, va_gc> *saved_args = NULL;
   size_t i = 0;
 

	Marek