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

Bash-Release:   5.0
Patch-ID:       bash50-012

Bug-Reported-by:        [email protected]
Bug-Reference-ID:       <[email protected]>
Bug-Reference-URL:

Bug-Description:

When using previous-history to go back beyond the beginning of the history list,
it's possible to move to an incorrect partial line.

Patch (apply with `patch -p0'):

*** ../bash-5.0-patched/lib/readline/misc.c     2017-07-07 17:30:12.000000000 -0400
--- lib/readline/misc.c 2019-05-16 11:43:46.000000000 -0400
***************
*** 577,580 ****
--- 590,594 ----
 {
   HIST_ENTRY *old_temp, *temp;
+   int had_saved_line;

   if (count < 0)
***************
*** 589,592 ****
--- 603,607 ----

   /* If we don't have a line saved, then save this one. */
+   had_saved_line = _rl_saved_line_for_history != 0;
   rl_maybe_save_line ();

***************
*** 612,616 ****
   if (temp == 0)
     {
!       rl_maybe_unsave_line ();
       rl_ding ();
     }
--- 627,632 ----
   if (temp == 0)
     {
!       if (had_saved_line == 0)
!         _rl_free_saved_history_line ();
       rl_ding ();
     }
*** ../bash-5.0/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 11

 #endif /* _PATCHLEVEL_H_ */
--- 26,30 ----
    looks for to find the patch level (for the sccs version string). */

! #define PATCHLEVEL 12

 #endif /* _PATCHLEVEL_H_ */