From: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Date: Mon, 22 Mar 2021 17:00:09 +0000 (-0400)
Subject: Fix: lttng-sessiond: kernel: leak of event notifier rule
X-Git-Tag: v2.13.0-rc1~201
X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=commitdiff_plain;h=e8b1187d0ff0323106069738b2fff5c9e5a7d9bb

Fix: lttng-sessiond: kernel: leak of event notifier rule

1445768 Resource leak

The system resource will not be reclaimed and reused, reducing the future availability of the resource.

In kernel_create_event_notifier_rule: Leak of memory or pointers to system resources (CWE-404)

Reported by: Coverity Scan
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Change-Id: I58862b3b38c7e61806e0047840bf68619273db49
---

diff --git a/src/bin/lttng-sessiond/kernel.c b/src/bin/lttng-sessiond/kernel.c
index bad864db0..03a358a0d 100644
--- a/src/bin/lttng-sessiond/kernel.c
+++ b/src/bin/lttng-sessiond/kernel.c
@@ -2408,7 +2408,7 @@ static enum lttng_error_code kernel_create_event_notifier_rule(
 		if (capture_bytecode == NULL) {
 			ERR("Unexpected NULL capture bytecode on condition");
 			error_code_ret = LTTNG_ERR_KERN_ENABLE_FAIL;
-			goto error;
+			goto capture_error;
 		}
 
 		ret = kernctl_capture(event_notifier_rule->fd, capture_bytecode);
@@ -2416,7 +2416,7 @@ static enum lttng_error_code kernel_create_event_notifier_rule(
 			ERR("Failed to set capture bytecode on event notifier rule fd: fd = %d",
 					event_notifier_rule->fd);
 			error_code_ret = LTTNG_ERR_KERN_ENABLE_FAIL;
-			goto error;
+			goto capture_error;
 		}
 	}
 
@@ -2446,6 +2446,7 @@ static enum lttng_error_code kernel_create_event_notifier_rule(
 
 	return LTTNG_OK;
 
+capture_error:
 add_callsite_error:
 enable_error:
 set_cloexec_error: