messages: Fix memory leak in ssh_packet_userauth_request

Found by AddressSanitizer. Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
2018-09-01 20:43:15 +02:00 · 2018-09-01 20:43:15 +02:00 · f8fc0b9dfb
--- a/src/messages.c
+++ b/src/messages.c
@ -839,6 +839,7 @@ SSH_PACKET_CALLBACK(ssh_packet_userauth_request){

        msg->auth_request.signature_state = SSH_PUBLICKEY_STATE_VALID;
    }
+    ssh_string_free(algo);
    goto end;
  }
 #ifdef WITH_GSSAPI