sessiond: fix: possible unaligned access in packed structure

'&rsock->sock.fd' is passed to consumer_send_fds and may result in an
unaligned pointer value. Use the ALIGNED_CONST_PTR macro to create
an aligned copy of the fd that is being passed.

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

diff --git a/src/bin/lttng-sessiond/consumer.c b/src/bin/lttng-sessiond/consumer.c
index 960fe8e46439a6447c17198f0732c08b507bee4a..5f2c1e9b217ef1fc714823f75c8ba0689bb3ad05 100644 (file)
--- a/src/bin/lttng-sessiond/consumer.c
+++ b/src/bin/lttng-sessiond/consumer.c
@@ -1047,7 +1047,7 @@ int consumer_send_relayd_socket(struct consumer_socket *consumer_sock,
        }
 
        DBG3("Sending relayd socket file descriptor to consumer");
-       ret = consumer_send_fds(consumer_sock, &rsock->sock.fd, 1);
+       ret = consumer_send_fds(consumer_sock, ALIGNED_CONST_PTR(rsock->sock.fd), 1);
        if (ret < 0) {
                goto error;
        }