Readline-8.2 patch 2

[Chet Ramey]

                           READLINE PATCH REPORT
                           =====================

Readline-Release: 8.2
Patch-ID: readline82-002

Bug-Reported-by:        srobertson@peratonlabs.com
Bug-Reference-ID:
Bug-Reference-URL:      
https://lists.gnu.org/archive/html/bug-bash/2022-09/msg00049.html

Bug-Description:

It's possible for readline to try to zero out a line that's not null-
terminated, leading to a memory fault.

Patch (apply with `patch -p0'):

*** ../readline-8.2-patched/display.c   2022-04-05 10:47:31.000000000 -0400
--- display.c   2022-12-13 13:11:22.000000000 -0500
***************
*** 2684,2692 ****
  
    if (visible_line)
!     {
!       temp = visible_line;
!       while (*temp)
!       *temp++ = '\0';
!     }
    rl_on_new_line ();
    forced_display++;
--- 2735,2740 ----
  
    if (visible_line)
!     memset (visible_line, 0, line_size);
! 
    rl_on_new_line ();
    forced_display++;
*** ../readline-8.2/patchlevel  2013-11-15 08:11:11.000000000 -0500
--- patchlevel  2014-03-21 08:28:40.000000000 -0400
***************
*** 1,3 ****
  # Do not edit -- exists only for use by patch
  
! 1
--- 1,3 ----
  # Do not edit -- exists only for use by patch
  
! 2

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/