From: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Date: Wed, 2 Mar 2022 15:24:29 +0000 (-0500)
Subject: Fix: sessiond: use after free
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=ae2275afab15b194011e92058c63039542212748;p=deliverable%2Flttng-tools.git

Fix: sessiond: use after free

Introduced by 88b02a8e7cbdbc728cc681cd07bbe0c738964717

Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Change-Id: I9b1c3eeed7e51976af1a4982fc522066b3b29461
---

diff --git a/src/bin/lttng-sessiond/cmd.cpp b/src/bin/lttng-sessiond/cmd.cpp
index e16f93f71..0ca7f2172 100644
--- a/src/bin/lttng-sessiond/cmd.cpp
+++ b/src/bin/lttng-sessiond/cmd.cpp
@@ -3785,14 +3785,15 @@ enum lttng_error_code cmd_list_channels(enum lttng_domain_type domain,
 
 			ret = lttng_channel_serialize(
 					channel, &payload->buffer);
-			lttng_channel_destroy(channel);
 			if (ret) {
 				ERR("Failed to serialize lttng_channel: channel name = '%s'",
 						channel->name);
+				lttng_channel_destroy(channel);
 				ret_code = LTTNG_ERR_UNK;
 				goto end;
 			}
 
+			lttng_channel_destroy(channel);
 			i++;
 		}
 		rcu_read_unlock();