BASH PATCH REPORT

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

Bash-Release: 4.3

Patch-ID: bash43-036

Bug-Reported-by: emanuelczirai@cryptolab.net

Bug-Reference-ID: <f962e4f556da5ebfadaf7afe9c78a8cb@cryptolab.net>

Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2015-02/msg00071.html

Bug-Description:

When evaluating and setting integer variables, and the assignment fails to

create a variable (for example, when performing an operation on an array

variable with an invalid subscript), bash attempts to dereference a null

pointer, causing a segmentation violation.

Patch (apply with `patch -p0'):

*** ../bash-20150206/variables.c 2015-01-23 20:39:27.000000000 -0500

--- variables.c 2015-02-19 13:56:12.000000000 -0500

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

*** 2834,2841 ****

v = bind_variable (lhs, rhs, 0);

! if (v && isint)

! VSETATTR (v, att_integer);

!

! VUNSETATTR (v, att_invisible);

return (v);

--- 2834,2843 ----

v = bind_variable (lhs, rhs, 0);

! if (v)

! {

! if (isint)

! VSETATTR (v, att_integer);

! VUNSETATTR (v, att_invisible);

! }

return (v);

*** ../bash-4.3/patchlevel.h 2012-12-29 10:47:57.000000000 -0500

--- 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 35

#endif /* _PATCHLEVEL_H_ */

--- 26,30 ----

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

! #define PATCHLEVEL 36

#endif /* _PATCHLEVEL_H_ */