1 			     BASH PATCH REPORT

     2 			     =================

     3 

     4 Bash-Release:	4.2

     5 Patch-ID:	bash42-024

     6 

     7 Bug-Reported-by:	Jim Avera <[email protected]>

     8 Bug-Reference-ID:	<[email protected]>

     9 Bug-Reference-URL:	http://lists.gnu.org/archive/html/bug-bash/2012-02/msg00001.html

    10 

    11 Bug-Description:

    12 

    13 When `printf -v' is used to set an array element, the format string contains

    14 `%b', and the corresponding argument is the empty string, the buffer used

    15 to store the value to be assigned can be NULL, which results in NUL being

    16 assigned to the array element.  This causes a seg fault when it's used later.

    17 

    18 Patch (apply with `patch -p0'):

    19 

    20 *** ../bash-4.2-patched/builtins/printf.def	2011-02-25 12:07:41.000000000 -0500

    21 --- builtins/printf.def	2012-02-02 08:37:12.000000000 -0500

    22 ***************

    23 *** 256,259 ****

    24 --- 257,262 ----

    25   	    {

    26   	      vflag = 1;

    27 + 	      if (vbsize == 0)

    28 + 		vbuf = xmalloc (vbsize = 16);

    29   	      vblen = 0;

    30   	      if (vbuf)

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

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

    33 ***************

    34 *** 26,30 ****

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

    36   

    37 ! #define PATCHLEVEL 23

    38   

    39   #endif /* _PATCHLEVEL_H_ */

    40 --- 26,30 ----

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

    42   

    43 ! #define PATCHLEVEL 24

    44   

    45   #endif /* _PATCHLEVEL_H_ */