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Bash-4.4 Official Patch 1


From: Chet Ramey
Subject: Bash-4.4 Official Patch 1
Date: Mon, 14 Nov 2016 13:53:09 -0500

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

Bash-Release:   4.4
Patch-ID:       bash44-001

Bug-Reported-by:        Sean Zha <address@hidden>
Bug-Reference-ID:       <address@hidden>
Bug-Reference-URL:      
http://lists.gnu.org/archive/html/bug-bash/2016-09/msg00107.html

Bug-Description:

Bash-4.4 changed the way the history list is initially allocated to reduce
the number of reallocations and copies.  Users who set HISTSIZE to a very
large number to essentially unlimit the size of the history list will get
memory allocation errors 

Patch (apply with `patch -p0'):

*** ../bash-4.4/lib/readline/history.c  2015-12-28 13:50:31.000000000 -0500
--- lib/readline/history.c      2016-09-30 14:28:40.000000000 -0400
***************
*** 58,61 ****
--- 58,63 ----
  #define DEFAULT_HISTORY_INITIAL_SIZE  502
  
+ #define MAX_HISTORY_INITIAL_SIZE      8192
+ 
  /* The number of slots to increase the_history by. */
  #define DEFAULT_HISTORY_GROW_SIZE 50
***************
*** 308,312 ****
        {
          if (history_stifled && history_max_entries > 0)
!           history_size = history_max_entries + 2;
          else
            history_size = DEFAULT_HISTORY_INITIAL_SIZE;
--- 310,316 ----
        {
          if (history_stifled && history_max_entries > 0)
!           history_size = (history_max_entries > MAX_HISTORY_INITIAL_SIZE)
!                               ? MAX_HISTORY_INITIAL_SIZE
!                               : history_max_entries + 2;
          else
            history_size = DEFAULT_HISTORY_INITIAL_SIZE;
*** ../bash-4.4/patchlevel.h    2016-06-22 14:51:03.000000000 -0400
--- patchlevel.h        2016-10-01 11:01:28.000000000 -0400
***************
*** 26,30 ****
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 0
  
  #endif /* _PATCHLEVEL_H_ */
--- 26,30 ----
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 1
  
  #endif /* _PATCHLEVEL_H_ */

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



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