BASH PATCH REPORT
			     =================

Bash-Release:	4.2
Patch-ID:	bash42-021

Bug-Reported-by:	Dan Douglas <ormaaj@gmail.com>
Bug-Reference-ID:	<4585554.nZWb4q7YoZ@smorgbox>
Bug-Reference-URL:	http://lists.gnu.org/archive/html/bug-bash/2011-12/msg00084.html

Bug-Description:

Using `read -N' to assign values to an array can result in NUL values being
assigned to some array elements.  These values cause seg faults when referenced
later.

Patch (apply with `patch -p0'):

--- a/builtins/read.def
+++ b/builtins/read.def
@@ -737,7 +737,7 @@ assign_vars:
 	      xfree (t1);
 	    }
 	  else
-	    var = bind_read_variable (varname, t);
+	    var = bind_read_variable (varname, t ? t : "");
 	}
       else
 	{
@@ -798,7 +798,7 @@ assign_vars:
       xfree (t);
     }
   else
-    var = bind_read_variable (list->word->word, input_string);
+    var = bind_read_variable (list->word->word, input_string ? input_string : "");
 
   if (var)
     {
--- a/patchlevel.h
+++ b/patchlevel.h
@@ -25,6 +25,6 @@
    regexp `^#define[ 	]*PATCHLEVEL', since that's what support/mkversion.sh
    looks for to find the patch level (for the sccs version string). */
 
-#define PATCHLEVEL 20
+#define PATCHLEVEL 21
 
 #endif /* _PATCHLEVEL_H_ */