From ef5c0a87137ab3a7eebd66328e1374e5f2247d8a Mon Sep 17 00:00:00 2001
From: Karel Zak <kzak@redhat.com>
Date: Wed, 13 Dec 2023 11:09:41 +0100
Subject: [PATCH] libsmartcols: fix memory leak on filter parser error

Signed-off-by: Karel Zak <kzak@redhat.com>
---
 libsmartcols/src/filter-parser.y | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/libsmartcols/src/filter-parser.y b/libsmartcols/src/filter-parser.y
index 4cddf26034..fcbf26a99e 100644
--- a/libsmartcols/src/filter-parser.y
+++ b/libsmartcols/src/filter-parser.y
@@ -55,6 +55,15 @@ void yyerror(yyscan_t *locp, struct libscols_filter *fltr, char const *msg);
 %left T_OR T_AND
 %left T_EQ T_NE T_LT T_LE T_GT T_GE T_REG T_NREG T_TRUE T_FALSE T_NEG
 
+
+%destructor {
+		/* This destruct is called on error. The root node will be deallocated
+		 * by filter_unref_node().
+		 */
+		if (fltr->root != $$)
+			filter_unref_node($$);
+	} <param>
+
 %%
 
 %start filter;
-- 
2.47.3