From 62e423f7593ab684c20a6381e2e098b97772746d Mon Sep 17 00:00:00 2001
From: Ben Pfaff <blp@cs.stanford.edu>
Date: Fri, 25 Nov 2022 12:13:41 -0800
Subject: [PATCH] pivot-table: Fix memory leak in debug print code.

---
 src/output/pivot-table.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/output/pivot-table.c b/src/output/pivot-table.c
index 93dc74c2d8..1a200f75c0 100644
--- a/src/output/pivot-table.c
+++ b/src/output/pivot-table.c
@@ -1964,7 +1964,10 @@ compose_headings (const struct pivot_table *pt,
                 {
                   headings[row][column] = pivot_value_to_string (c->name, pt);
                   if (!*headings[row][column])
-                    headings[row][column] = xstrdup ("<blank>");
+                    {
+                      free (headings[row][column]);
+                      headings[row][column] = xstrdup ("<blank>");
+                    }
                   row--;
                 }
             }
-- 
2.30.2