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

Bash-Release:	4.0
Patch-ID:	bash40-040

Bug-Reported-by:	Tavis Ormandy <taviso@cmpxchg8b.com>
Bug-Reference-ID:
Bug-Reference-URL:	http://twitter.com/taviso/statuses/514887394294652929

Bug-Description:

Under certain circumstances, bash can incorrectly save a lookahead character and
return it on a subsequent call, even when reading a new line.

Patch (apply with `patch -p0'):

*** ../bash-4.0.39/parse.y	2009-06-02 09:08:07.000000000 -0400
--- parse.y	2014-09-25 16:15:47.000000000 -0400
***************
*** 2671,2674 ****
--- 2671,2676 ----
    word_desc_to_read = (WORD_DESC *)NULL;
  
+   eol_ungetc_lookahead = 0;
+ 
    current_token = '\n';		/* XXX */
    last_read_token = '\n';
*** ../bash-4.0.39/y.tab.c	2009-01-08 09:30:24.000000000 -0500
--- y.tab.c	2014-09-25 20:27:08.000000000 -0400
***************
*** 4927,4930 ****
--- 4927,4932 ----
    word_desc_to_read = (WORD_DESC *)NULL;
  
+   eol_ungetc_lookahead = 0;
+   
    last_read_token = '\n';
    token_to_read = '\n';
***************
*** 7910,7912 ****
  }
  #endif /* HANDLE_MULTIBYTE */
- 
--- 7912,7913 ----
*** ../bash-4.0/patchlevel.h	2009-01-04 14:32:40.000000000 -0500
--- patchlevel.h	2009-02-22 16:11:31.000000000 -0500
***************
*** 26,30 ****
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 39
  
  #endif /* _PATCHLEVEL_H_ */
--- 26,30 ----
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 40
  
  #endif /* _PATCHLEVEL_H_ */