From: Ondřej Surý <ondrej@isc.org>
Date: Sat, 14 Mar 2026 11:52:07 +0000 (+0100)
Subject: Fix memory leak in ixfr_commit() error path
X-Git-Tag: v9.20.22~29^2~5
X-Git-Url: http://git.ipfire.org/gitweb/?a=commitdiff_plain;h=644c012c0d13c382f1b31762771a0d4719ead161;p=thirdparty%2Fbind9.git

Fix memory leak in ixfr_commit() error path

The 'data' allocation was not freed when reaching the cleanup
label with an error result.

(cherry picked from commit 80fae7a4b7d8f9aa5aedb5f5ad34f90ce1ad3e77)
---

diff --git a/lib/dns/xfrin.c b/lib/dns/xfrin.c
index af717462ca7..e7c4847c1e8 100644
--- a/lib/dns/xfrin.c
+++ b/lib/dns/xfrin.c
@@ -677,6 +677,9 @@ ixfr_commit(dns_xfrin_t *xfr) {
 	}
 
 cleanup:
+	if (result != ISC_R_SUCCESS) {
+		isc_mem_put(xfr->mctx, data, sizeof(*data));
+	}
 	return result;
 }