From 5cfb7bc8feecc82eb161450faa572abf9be19cbb Mon Sep 17 00:00:00 2001
From: Fabian Keil <fk@fabiankeil.de>
Date: Thu, 24 Sep 2020 10:44:00 +0200
Subject: [PATCH] pcrs_filter_response(): Free the old data if there are no
hits
... and it's different from the data in iob and the new data.
Fixes a memory leak if multiple filters are executed
and the last one is skipped due to a pcre error.
---
filters.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/filters.c b/filters.c
index 13cba16a..7b586bc0 100644
--- a/filters.c
+++ b/filters.c
@@ -1671,6 +1671,10 @@ static char *pcrs_filter_response(struct client_state *csp)
*/
if (!hits)
{
+ if (old != csp->iob->cur && old != new)
+ {
+ freez(old);
+ }
freez(new);
return(NULL);
}
--
2.49.0