From: Evan Hunt <each@isc.org>
Date: Sat, 1 Jun 2024 00:16:29 +0000 (-0700)
Subject: fix a memory leak that could occur when signing
X-Git-Tag: v9.20.0~8^2~3
X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=7dd6b47ace3f43ebcd72c382bcb5f962f8f32af7;p=thirdparty%2Fbind9.git

fix a memory leak that could occur when signing

when signatures were not added because of too many types already
existing at a node, the diff was not being cleaned up; this led to
a memory leak being reported at shutdown.
---

diff --git a/lib/dns/zone.c b/lib/dns/zone.c
index 9f152a7c025..f8c0723ff6b 100644
--- a/lib/dns/zone.c
+++ b/lib/dns/zone.c
@@ -9743,6 +9743,7 @@ cleanup:
 	}
 
 	dns_diff_clear(&_sig_diff);
+	dns_diff_clear(&post_diff);
 
 	for (i = 0; i < nkeys; i++) {
 		dst_key_free(&zone_keys[i]);