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diff --git a/source/a/bash/bash-5.0-patches/bash50-008 b/source/a/bash/bash-5.0-patches/bash50-008
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+ BASH PATCH REPORT
+ =================
+
+Bash-Release: 5.0
+Patch-ID: bash50-008
+
+Bug-Reported-by: Michael Albinus <michael.albinus@gmx.de>
+Bug-Reference-ID: <87bm36k3kz.fsf@gmx.de>
+Bug-Reference-URL: https://lists.gnu.org/archive/html/bug-bash/2019-02/msg00111.html
+
+Bug-Description:
+
+When HISTSIZE is set to 0, history expansion can leave the history length
+set to an incorrect value, leading to subsequent attempts to access invalid
+memory.
+
+Patch (apply with `patch -p0'):
+
+*** ../bash-5.0-patched/bashhist.c 2018-07-05 22:41:14.000000000 -0400
+--- bashhist.c 2019-02-20 16:20:04.000000000 -0500
+***************
+*** 561,573 ****
+ if (!history_expansion_inhibited && history_expansion && history_expansion_p (line))
+ {
+ /* If we are expanding the second or later line of a multi-line
+ command, decrease history_length so references to history expansions
+ in these lines refer to the previous history entry and not the
+ current command. */
+ if (history_length > 0 && command_oriented_history && current_command_first_line_saved && current_command_line_count > 1)
+ history_length--;
+ expanded = history_expand (line, &history_value);
+ if (history_length >= 0 && command_oriented_history && current_command_first_line_saved && current_command_line_count > 1)
+! history_length++;
+
+ if (expanded)
+--- 561,576 ----
+ if (!history_expansion_inhibited && history_expansion && history_expansion_p (line))
+ {
++ int old_len;
++
+ /* If we are expanding the second or later line of a multi-line
+ command, decrease history_length so references to history expansions
+ in these lines refer to the previous history entry and not the
+ current command. */
++ old_len = history_length;
+ if (history_length > 0 && command_oriented_history && current_command_first_line_saved && current_command_line_count > 1)
+ history_length--;
+ expanded = history_expand (line, &history_value);
+ if (history_length >= 0 && command_oriented_history && current_command_first_line_saved && current_command_line_count > 1)
+! history_length = old_len;
+
+ if (expanded)
+
+*** ../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 7
+
+ #endif /* _PATCHLEVEL_H_ */
+--- 26,30 ----
+ looks for to find the patch level (for the sccs version string). */
+
+! #define PATCHLEVEL 8
+
+ #endif /* _PATCHLEVEL_H_ */