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# DP: bash43-021 upstream patch
BASH PATCH REPORT
=================
Bash-Release: 4.3
Patch-ID: bash43-021
Bug-Reported-by: Jared Yanovich <slovichon@gmail.com>
Bug-Reference-ID: <20140625225019.GJ17044@nightderanger.psc.edu>
Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2014-06/msg00070.html
Bug-Description:
When the readline `revert-all-at-newline' option is set, pressing newline
when the current line is one retrieved from history results in a double free
and a segmentation fault.
Patch (apply with `patch -p0'):
Index: b/patchlevel.h
===================================================================
--- a/patchlevel.h
+++ b/patchlevel.h
@@ -25,6 +25,6 @@
regexp `^#define[ ]*PATCHLEVEL', since that's what support/mkversion.sh
looks for to find the patch level (for the sccs version string). */
-#define PATCHLEVEL 20
+#define PATCHLEVEL 21
#endif /* _PATCHLEVEL_H_ */
Index: b/lib/readline/misc.c
===================================================================
--- a/lib/readline/misc.c
+++ b/lib/readline/misc.c
@@ -461,6 +461,7 @@ _rl_revert_all_lines ()
saved_undo_list = 0;
/* Set up rl_line_buffer and other variables from history entry */
rl_replace_from_history (entry, 0); /* entry->line is now current */
+ entry->data = 0; /* entry->data is now current undo list */
/* Undo all changes to this history entry */
while (rl_undo_list)
rl_do_undo ();
@@ -468,7 +469,6 @@ _rl_revert_all_lines ()
the timestamp. */
FREE (entry->line);
entry->line = savestring (rl_line_buffer);
- entry->data = 0;
}
entry = previous_history ();
}
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