From http://ftp.gnu.org/pub/gnu/bash/bash-4.3-patches/bash43-036 Signed-off-by: Gustavo Zacarias BASH PATCH REPORT ================= Bash-Release: 4.3 Patch-ID: bash43-036 Bug-Reported-by: emanuelczirai@cryptolab.net Bug-Reference-ID: 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_ */