import bash-4.4.20-2.el8

SOURCES/bash-5.0-histtimeformat-segfault.patch

@@ -0,0 +1,19 @@
+diff --git a/builtins/history.def b/builtins/history.def
+--- a/builtins/history.def
++++ b/builtins/history.def
+@@ -256,10 +256,13 @@ histtime (hlist, histtimefmt)
+ {
+   static char timestr[128];
+   time_t t;
++  struct tm *tm;
+ 
+   t = history_get_time (hlist);
+-  if (t)
+-    strftime (timestr, sizeof (timestr), histtimefmt, localtime (&t));
++
++  tm = t ? localtime (&t) : 0;
++  if (t && tm)
++    strftime (timestr, sizeof (timestr), histtimefmt, tm);
+   else if (hlist->timestamp && hlist->timestamp[0])
+     snprintf (timestr, sizeof (timestr), _("%s: invalid timestamp"),
+ 	(hlist->timestamp[0] == '#') ? hlist->timestamp + 1: hlist->timestamp);

SPECS/bash.spec

@@ -7,7 +7,7 @@
 Version: %{baseversion}%{patchleveltag}
 Name: bash
 Summary: The GNU Bourne Again shell
-Release: 1%{?dist}
+Release: 2%{?dist}
 License: GPLv3+
 Url: https://www.gnu.org/software/bash
 Source0: https://ftp.gnu.org/gnu/bash/bash-%{baseversion}.tar.gz
@@ -112,6 +112,9 @@ Patch136: bash-5.0-cve-2019-18276-2.patch
 # values
 Patch137: bash-5.0-bgp-resize.patch
 
+# 1794884 - HISTTIMEFORMAT causes Segmentation fault under certain conditions
+Patch138: bash-5.0-histtimeformat-segfault.patch
+
 BuildRequires: texinfo bison
 BuildRequires: ncurses-devel
 BuildRequires: autoconf, gettext
@@ -335,6 +338,10 @@ end
 %{_libdir}/pkgconfig/%{name}.pc
 
 %changelog
+* Mon Jul 26 2021 Siteshwar Vashisht <svashisht@redhat.com> - 4.4.20-2
+- Fix crash if a timestamp in a history file overflowed a time_t
+  Resolves: #1794884
+
 * Fri Mar 26 2021 Siteshwar Vashisht <svashisht@redhat.com> - 4.4.20-1
 - Fix infinite loop in long running scripts
   Resolves: #1943495