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+ BASH PATCH REPORT
+ =================
+
+Bash-Release: 4.4
+Patch-ID: bash44-019
+
+Bug-Reported-by: Kieran Grant <kieran.thehacker.grant@gmail.com>
+Bug-Reference-ID: <ec9071ae-efb1-9e09-5d03-e905daf2835c@gmail.com>
+Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2018-02/msg00002.html
+
+Bug-Description:
+
+With certain values for PS1, especially those that wrap onto three or more
+lines, readline will miscalculate the number of invisible characters,
+leading to crashes and core dumps.
+
+Patch (apply with `patch -p0'):
+
+*** ../bash-4.4.18/lib/readline/display.c 2016-07-28 14:49:33.000000000 -0400
+--- lib/readline/display.c 2018-02-03 19:19:35.000000000 -0500
+***************
+*** 772,776 ****
+ wadjust = (newlines == 0)
+ ? prompt_invis_chars_first_line
+! : ((newlines == prompt_lines_estimate) ? wrap_offset : prompt_invis_chars_first_line);
+
+ /* fix from Darin Johnson <darin@acuson.com> for prompt string with
+--- 788,794 ----
+ wadjust = (newlines == 0)
+ ? prompt_invis_chars_first_line
+! : ((newlines == prompt_lines_estimate)
+! ? (wrap_offset - prompt_invis_chars_first_line)
+! : 0);
+
+ /* fix from Darin Johnson <darin@acuson.com> for prompt string with
+*** ../bash-4.4/patchlevel.h 2016-06-22 14:51:03.000000000 -0400
+--- patchlevel.h 2016-10-01 11:01:28.000000000 -0400
+***************
+*** 26,30 ****
+ looks for to find the patch level (for the sccs version string). */
+
+! #define PATCHLEVEL 18
+
+ #endif /* _PATCHLEVEL_H_ */
+--- 26,30 ----
+ looks for to find the patch level (for the sccs version string). */
+
+! #define PATCHLEVEL 19
+
+ #endif /* _PATCHLEVEL_H_ */