Fix a memory leak in dns_dlzcreate()

dns_dlzcreate() fails to free the memory allocated for dlzname
when an error occurs.

Free dlzname's memory (acquired earlier with isc_mem_strdup())
by calling isc_mem_free() before returning an error code.

diff --git a/lib/dns/dlz.c b/lib/dns/dlz.c
index 9b28e37f7a97b2e0dded11dd315d0fd602a49dab..b2ff6a6b178af57078a77673305c8c3cbc44d326 100644 (file)
--- a/lib/dns/dlz.c
+++ b/lib/dns/dlz.c
@@ -230,6 +230,7 @@ dns_dlzcreate(isc_mem_t *mctx, const char *dlzname, const char *drivername,
 
        /* impinfo->methods->create failed. */
        RWUNLOCK(&dlz_implock, isc_rwlocktype_read);
+       isc_mem_free(mctx, db->dlzname);
        isc_mem_put(mctx, db, sizeof(dns_dlzdb_t));
        return (result);
 }