From: Antoine Busque <abusque@efficios.com>
Date: Sun, 13 Sep 2015 03:48:11 +0000 (-0400)
Subject: Fix: double free on enable-event
X-Git-Tag: v2.8.0-rc1~347
X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=commitdiff_plain;h=60d21fa25f38b47b5867377035b68830105afcf9;hp=b1d1dc14cf92a1070a9b38242b3b3ba67d25c2f9

Fix: double free on enable-event

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

diff --git a/src/bin/lttng-sessiond/cmd.c b/src/bin/lttng-sessiond/cmd.c
index 058dbae4d..dfc8b31d0 100644
--- a/src/bin/lttng-sessiond/cmd.c
+++ b/src/bin/lttng-sessiond/cmd.c
@@ -1633,9 +1633,10 @@ static int _cmd_enable_event(struct ltt_session *session,
 			event->type = LTTNG_EVENT_SYSCALL;	/* Hack */
 			ret = event_kernel_enable_event(kchan, event,
 				filter_expression_a, filter_a);
+			/* We have passed ownership */
+			filter_expression_a = NULL;
+			filter_a = NULL;
 			if (ret != LTTNG_OK) {
-				free(filter_expression_a);
-				free(filter_a);
 				goto error;
 			}
 			break;