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+ BASH PATCH REPORT
+ =================
+
+Bash-Release: 4.3
+Patch-ID: bash43-009
+
+Bug-Reported-by: Matthias Klose <doko@debian.org>
+Bug-Reference-ID: <53346FC8.6090005@debian.org>
+Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2014-03/msg00171.html
+
+Bug-Description:
+
+There is a problem with unsigned sign extension when attempting to reallocate
+the input line when it is fewer than 3 characters long and there has been a
+history expansion. The sign extension causes the shell to not reallocate the
+line, which results in a segmentation fault when it writes past the end.
+
+Patch (apply with `patch -p0'):
+
+*** ../bash-4.3-patched/parse.y 2014-02-11 09:42:10.000000000 -0500
+--- parse.y 2014-03-27 16:33:29.000000000 -0400
+***************
+*** 2425,2429 ****
+ if (shell_input_line_terminator != EOF)
+ {
+! if (shell_input_line_size < SIZE_MAX && shell_input_line_len > shell_input_line_size - 3)
+ shell_input_line = (char *)xrealloc (shell_input_line,
+ 1 + (shell_input_line_size += 2));
+--- 2425,2429 ----
+ if (shell_input_line_terminator != EOF)
+ {
+! if (shell_input_line_size < SIZE_MAX-3 && (shell_input_line_len+3 > shell_input_line_size))
+ shell_input_line = (char *)xrealloc (shell_input_line,
+ 1 + (shell_input_line_size += 2));
+*** ../bash-4.3-patched/y.tab.c 2014-03-28 11:17:06.000000000 -0400
+--- y.tab.c 2014-04-07 11:48:31.000000000 -0400
+***************
+*** 4737,4741 ****
+ if (shell_input_line_terminator != EOF)
+ {
+! if (shell_input_line_size < SIZE_MAX && shell_input_line_len > shell_input_line_size - 3)
+ shell_input_line = (char *)xrealloc (shell_input_line,
+ 1 + (shell_input_line_size += 2));
+--- 4737,4741 ----
+ if (shell_input_line_terminator != EOF)
+ {
+! if (shell_input_line_size < SIZE_MAX-3 && (shell_input_line_len+3 > shell_input_line_size))
+ shell_input_line = (char *)xrealloc (shell_input_line,
+ 1 + (shell_input_line_size += 2));
+*** ../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 8
+
+ #endif /* _PATCHLEVEL_H_ */
+--- 26,30 ----
+ looks for to find the patch level (for the sccs version string). */
+
+! #define PATCHLEVEL 9
+
+ #endif /* _PATCHLEVEL_H_ */