BASH PATCH REPORT
			     =================

Bash-Release:	5.3
Patch-ID:	bash53-018

Bug-Reported-by:	Ben Kallus <benjamin.p.kallus.gr@dartmouth.edu>
			Derek Schrock <dereks@lifeofadishwasher.com>
Bug-Reference-ID:	<CAB6pCSaUPimkEbQwTTkxD5vV14ZJRGCeK2W1ur8RqT1rPrd+Gw@mail.gmail.com>
			<ajC1pZAV_95J3vsJ@ircbsd.lifeofadishwasher.com>
Bug-Reference-URL:	https://lists.gnu.org/archive/html/bug-readline/2026-06/msg00005.html
			https://lists.gnu.org/archive/html/bug-readline/2026-06/msg00002.html

Bug-Description:

Patch (apply with `patch -p0'):

This patch fixes two problems with the redisplay code. The first is a
crash that results if the initial prompt contains more than 256 wrapped
lines. The second is a fix to the redisplay code when the first several
characters of the prompt string are identical, but the prompt has changed
and needs to be redrawn. If these first few characters are part of an escape
sequence, the entire sequence needs to be redrawn.

*** ../bash-5.3-patched/lib/readline/display.c	Fri May 22 14:55:01 2026
--- lib/readline/display.c	Fri Jun 26 11:08:53 2026
***************
*** 1025,1028 ****
--- 1025,1029 ----
  	{
  	  temp = local_prompt_newlines[newlines+1];
+ 	  CHECK_INV_LBREAKS ();
  	  inv_lbreaks[++newlines] = temp;
  	}  
***************
*** 2262,2270 ****
    nd = nfd - new;	/* nd, od are buffer indexes */
    if (current_line == 0 && !_rl_horizontal_scroll_mode &&
!       _rl_term_cr && lendiff > prompt_visible_length && _rl_last_c_pos > 0 &&
        (((od > 0 || nd > 0) && (od <= prompt_last_invisible || nd <= prompt_last_invisible)) ||
  		((od >= lendiff) && _rl_last_c_pos < PROMPT_ENDING_INDEX)))
      {
!       _rl_cr ();
        if (modmark)
  	_rl_output_some_chars ("*", 1);
--- 2266,2275 ----
    nd = nfd - new;	/* nd, od are buffer indexes */
    if (current_line == 0 && !_rl_horizontal_scroll_mode &&
!       _rl_term_cr && lendiff > prompt_visible_length && _rl_last_c_pos >= 0 &&
        (((od > 0 || nd > 0) && (od <= prompt_last_invisible || nd <= prompt_last_invisible)) ||
  		((od >= lendiff) && _rl_last_c_pos < PROMPT_ENDING_INDEX)))
      {
!       if (_rl_last_c_pos > 0)
! 	_rl_cr ();
        if (modmark)
  	_rl_output_some_chars ("*", 1);
*** ../bash-5.3/patchlevel.h	2020-06-22 14:51:03.000000000 -0400
--- patchlevel.h	2020-10-01 11:01:28.000000000 -0400
***************
*** 26,30 ****
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 17
  
  #endif /* _PATCHLEVEL_H_ */
--- 26,30 ----
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 18
  
  #endif /* _PATCHLEVEL_H_ */