cut: fix a segfault with disjoint open ended ranges

Fixes the issue introduced in unreleased commit v8.20-60-gec48bea.

* src/cut.c (set_fields): Don't access the bit array if
we've an open ended range that's outside any finite range.
* tests/misc/cut.pl: Add tests for this case.
Reported by Marcel Böhme in http://bugs.gnu.org/13627

1 files changed, 3 insertions, 1 deletions

diff --git a/src/cut.c b/src/cut.c
index 36172c061..494aad772 100644
--- a/src/cut.c
+++ b/src/cut.c
@@ -530,7 +530,9 @@ set_fields (const char *fieldstr)
   if (output_delimiter_specified
       && !complement
       && eol_range_start
-      && max_range_endpoint && !is_printable_field (eol_range_start))
+      && max_range_endpoint
+      && (max_range_endpoint < eol_range_start
+          || !is_printable_field (eol_range_start)))
     mark_range_start (eol_range_start);
 
   free (rp);