linux-kernel - [PATCH v4 2/2] kunit: avoid memory leak on device register error

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20240419132504.9488-3-wander@redhat.com>
Date: Fri, 19 Apr 2024 10:25:02 -0300
From: Wander Lairson Costa <wander@...hat.com>
To: Brendan Higgins <brendan.higgins@...ux.dev>,
	David Gow <davidgow@...gle.com>,
	Rae Moar <rmoar@...gle.com>,
	Shuah Khan <skhan@...uxfoundation.org>,
	Matti Vaittinen <mazziesaccount@...il.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Maxime Ripard <mripard@...nel.org>,
	linux-kselftest@...r.kernel.org (open list:KERNEL UNIT TESTING FRAMEWORK (KUnit)),
	kunit-dev@...glegroups.com (open list:KERNEL UNIT TESTING FRAMEWORK (KUnit)),
	linux-kernel@...r.kernel.org (open list)
Cc: Wander Lairson Costa <wander@...hat.com>
Subject: [PATCH v4 2/2] kunit: avoid memory leak on device register error

If the device register fails, free the allocated memory before
returning.

Signed-off-by: Wander Lairson Costa <wander@...hat.com>
Fixes: d03c720e03bd ("kunit: Add APIs for managing devices")
---
 lib/kunit/device.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/kunit/device.c b/lib/kunit/device.c
index 25c81ed465fb..d8c09dcb3e79 100644
--- a/lib/kunit/device.c
+++ b/lib/kunit/device.c
@@ -131,6 +131,7 @@ static struct kunit_device *kunit_device_register_internal(struct kunit *test,
 	err = device_register(&kunit_dev->dev);
 	if (err) {
 		put_device(&kunit_dev->dev);
+		kfree(kunit_dev);
 		return ERR_PTR(err);
 	}
 
-- 
2.44.0