BASH PATCH REPORT

			     =================

Bash-Release:	4.2

Patch-ID:	bash42-047

Bug-Reported-by:	Matthew Riley <mattdr@google.com>

Bug-Reference-ID:	<CA+NEdkwP3gw+gbcF5+xnR1pvcuzb1mDVzvmuJOpHRGHA9T7VFg@mail.gmail.com>

Bug-Reference-URL:	http://lists.gnu.org/archive/html/bug-bash/2013-03/msg00047.html

Bug-Description:

The function that shortens pathnames for $PS1 according to the value of

$PROMPT_DIRTRIM uses memcpy on potentially-overlapping regions of memory,

when it should use memmove.  The result is garbled pathnames in prompt

strings.

Patch (apply with `patch -p0'):

*** ../bash-4.2-patched/general.c	2010-12-12 15:06:27.000000000 -0500

--- general.c	2014-01-30 16:46:15.000000000 -0500

***************

*** 767,771 ****

    nlen = nend - ntail;

!   memcpy (nbeg, ntail, nlen);

    nbeg[nlen] = '\0';

--- 767,771 ----

    nlen = nend - ntail;

!   memmove (nbeg, ntail, nlen);

    nbeg[nlen] = '\0';

*** ../bash-4.2-patched/patchlevel.h	Sat Jun 12 20:14:48 2010

--- patchlevel.h	Thu Feb 24 21:41:34 2011

***************

*** 26,30 ****

     looks for to find the patch level (for the sccs version string). */

! #define PATCHLEVEL 46

  #endif /* _PATCHLEVEL_H_ */

--- 26,30 ----

     looks for to find the patch level (for the sccs version string). */

! #define PATCHLEVEL 47

  #endif /* _PATCHLEVEL_H_ */