Bash-3.2 Official Patch 23

[Chet Ramey]

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

Bash-Release: 3.2
Patch-ID: bash32-023

Bug-Reported-by:        Chet Ramey <chet.ramey@cwru.edu>
Bug-Reference-ID:
Bug-Reference-URL:

Bug-Description:

When an error occurs during the pattern removal word expansion, the shell
can free unallocated memory or free memory multiple times.

Patch:

*** ../bash-3.2-patched/subst.c Tue Apr  3 16:47:19 2007
--- subst.c     Tue Jul 17 09:45:11 2007
***************
*** 3975,3979 ****
      patstr++;
  
!   pattern = getpattern (patstr, quoted, 1);
  
    temp1 = (char *)NULL;               /* shut up gcc */
--- 4008,4016 ----
      patstr++;
  
!   /* Need to pass getpattern newly-allocated memory in case of expansion --
!      the expansion code will free the passed string on an error. */
!   temp1 = savestring (patstr);
!   pattern = getpattern (temp1, quoted, 1);
!   free (temp1);
  
    temp1 = (char *)NULL;               /* shut up gcc */
*** ../bash-3.2/patchlevel.h    Thu Apr 13 08:31:04 2006
--- patchlevel.h        Mon Oct 16 14:22:54 2006
***************
*** 26,30 ****
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 22
  
  #endif /* _PATCHLEVEL_H_ */
--- 26,30 ----
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 23
  
  #endif /* _PATCHLEVEL_H_ */

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                       Live Strong.  No day but today.
Chet Ramey, ITS, CWRU    chet@case.edu    http://cnswww.cns.cwru.edu/~chet/