Bash-4.3 Official Patch 21

[Chet Ramey]

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

Bash-Release:   4.3
Patch-ID:       bash43-021

Bug-Reported-by:        Jared Yanovich <slovichon@gmail.com>
Bug-Reference-ID:       <20140625225019.GJ17044@nightderanger.psc.edu>
Bug-Reference-URL:      
http://lists.gnu.org/archive/html/bug-bash/2014-06/msg00070.html

Bug-Description:

When the readline `revert-all-at-newline' option is set, pressing newline
when the current line is one retrieved from history results in a double free
and a segmentation fault.

Patch (apply with `patch -p0'):

*** ../bash-4.3-patched/lib/readline/misc.c     2012-09-01 18:03:11.000000000 
-0400
--- lib/readline/misc.c 2014-06-30 13:41:19.000000000 -0400
***************
*** 462,465 ****
--- 462,466 ----
          /* Set up rl_line_buffer and other variables from history entry */
          rl_replace_from_history (entry, 0);   /* entry->line is now current */
+         entry->data = 0;                      /* entry->data is now current 
undo list */
          /* Undo all changes to this history entry */
          while (rl_undo_list)
***************
*** 469,473 ****
          FREE (entry->line);
          entry->line = savestring (rl_line_buffer);
-         entry->data = 0;
        }
        entry = previous_history ();
--- 470,473 ----

*** ../bash-4.3/patchlevel.h    2012-12-29 10:47:57.000000000 -0500
--- patchlevel.h        2014-03-20 20:01:28.000000000 -0400
***************
*** 26,30 ****
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 20
  
  #endif /* _PATCHLEVEL_H_ */
--- 26,30 ----
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 21
  
  #endif /* _PATCHLEVEL_H_ */

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    chet@case.edu    http://cnswww.cns.cwru.edu/~chet/