From: Mark Andrews <marka@isc.org>
Date: Fri, 24 Feb 2023 01:57:39 +0000 (+1100)
Subject: Fix memory leak in isc_hmac_init
X-Git-Tag: v9.19.11~21^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cf5f13367965e5318487e0c31a56ba53cc2098b3;p=thirdparty%2Fbind9.git

Fix memory leak in isc_hmac_init

If EVP_DigestSignInit failed 'pkey' was not freed.
---

diff --git a/lib/isc/hmac.c b/lib/isc/hmac.c
index 7d62165555e..8fce30bda90 100644
--- a/lib/isc/hmac.c
+++ b/lib/isc/hmac.c
@@ -59,6 +59,7 @@ isc_hmac_init(isc_hmac_t *hmac, const void *key, const size_t keylen,
 	}
 
 	if (EVP_DigestSignInit(hmac, NULL, md_type, NULL, pkey) != 1) {
+		EVP_PKEY_free(pkey);
 		return (ISC_R_CRYPTOFAILURE);
 	}