From http://ftp.gnu.org/pub/gnu/bash/bash-4.3-patches/bash43-043

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>

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

Bash-Release:	4.3
Patch-ID:	bash43-043

Bug-Reported-by:	lolilolicon <lolilolicon@gmail.com>
Bug-Reference-ID:	<CAMtVo_MF16KWanCB4C8WxA88Qt26zWsvV6V7+_U2fM0E6tCDxw@mail.gmail.com>
Bug-Reference-URL:	http://lists.gnu.org/archive/html/bug-bash/2014-08/msg00040.html

Bug-Description:

When the lastpipe option is enabled, the last component can contain nested
pipelines and cause a segmentation fault under certain circumestances.

Patch (apply with `patch -p0'):

*** a/execute_cmd.c	2014-07-30 10:26:52.000000000 -0400
--- b/execute_cmd.c	2014-08-15 08:55:24.000000000 -0400
***************
*** 2406,2412 ****
      {
  #if defined (JOB_CONTROL)
!       append_process (savestring (the_printed_command), dollar_dollar_pid, exec_result, lastpipe_jid);
! #endif
        lstdin = wait_for (lastpid);
  #if defined (JOB_CONTROL)
        /* If wait_for removes the job from the jobs table, use result of last
--- 2433,2447 ----
      {
  #if defined (JOB_CONTROL)
!       if (INVALID_JOB (lastpipe_jid) == 0)
!         {
!           append_process (savestring (the_printed_command_except_trap), dollar_dollar_pid, exec_result, lastpipe_jid);
!           lstdin = wait_for (lastpid);
!         }
!       else
!         lstdin = wait_for_single_pid (lastpid);		/* checks bgpids list */
! #else
        lstdin = wait_for (lastpid);
+ #endif
+ 
  #if defined (JOB_CONTROL)
        /* If wait_for removes the job from the jobs table, use result of last
*** a/patchlevel.h	2012-12-29 10:47:57.000000000 -0500
--- b/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 42
  
  #endif /* _PATCHLEVEL_H_ */
--- 26,30 ----
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 43
  
  #endif /* _PATCHLEVEL_H_ */