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diff --git a/patches/source/bash/bash-4.2-patches/bash42-013 b/patches/source/bash/bash-4.2-patches/bash42-013
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+++ b/patches/source/bash/bash-4.2-patches/bash42-013
@@ -0,0 +1,52 @@
+ BASH PATCH REPORT
+ =================
+
+Bash-Release: 4.2
+Patch-ID: bash42-013
+
+Bug-Reported-by: Marten Wikstrom <marten.wikstrom@keystream.se>
+Bug-Reference-ID: <BANLkTikKECAh94ZEX68iQvxYuPeEM_xoSQ@mail.gmail.com>
+Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2011-05/msg00049.html
+
+Bug-Description:
+
+An off-by-one error caused the shell to skip over CTLNUL characters,
+which are used internally to mark quoted null strings. The effect
+was to have stray 0x7f characters left after expanding words like
+""""""""aa.
+
+Patch (apply with `patch -p0'):
+
+*** ../bash-4.2-patched/subst.c 2011-03-06 14:11:11.000000000 -0500
+--- subst.c 2011-05-11 11:23:33.000000000 -0400
+***************
+*** 3707,3711 ****
+ }
+ else if (string[i] == CTLNUL)
+! i++;
+
+ prev_i = i;
+--- 3710,3717 ----
+ }
+ else if (string[i] == CTLNUL)
+! {
+! i++;
+! continue;
+! }
+
+ prev_i = i;
+*** ../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 12
+
+ #endif /* _PATCHLEVEL_H_ */
+--- 26,30 ----
+ looks for to find the patch level (for the sccs version string). */
+
+! #define PATCHLEVEL 13
+
+ #endif /* _PATCHLEVEL_H_ */