6b13f685e
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From http://ftp.gnu.org/pub/gnu/bash/bash-4.3-patches/bash43-036
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
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'):
*** a/bash-20150206/variables.c 2015-01-23 20:39:27.000000000 -0500
--- b/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);
*** a/bash-4.3/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 35
#endif /* _PATCHLEVEL_H_ */
--- 26,30 ----
looks for to find the patch level (for the sccs version string). */
! #define PATCHLEVEL 36
#endif /* _PATCHLEVEL_H_ */
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