[Bug sanitizer/59258] usan: ICE(segfault): stack-buffer-overflow with -fsanitize=undefined

[mpolacek at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59258

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2013-11-23
           Assignee|unassigned at gcc dot gnu.org      |mpolacek at gcc dot 
gnu.org
   Target Milestone|---                         |4.9.0
     Ever confirmed|0                           |1

--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Ugh, of course.  This should fix it.  Thanks for the report.

--- a/gcc/ubsan.c
+++ b/gcc/ubsan.c
@@ -388,7 +388,7 @@ ubsan_create_data (const char *name, location_t loc,
 {
   va_list args;
   tree ret, t;
-  tree fields[3];
+  tree fields[5];
   vec<tree, va_gc> *saved_args = NULL;
   size_t i = 0;