linux-kernel - [PATCH AUTOSEL 4.19 052/172] staging: greybus: fix a missing-check bug in gb_lights_light

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: <20200618012218.607130-52-sashal@kernel.org>
Date:   Wed, 17 Jun 2020 21:20:18 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Chen Zhou <chenzhou10@...wei.com>,
        Rui Miguel Silva <rmfrfs@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Sasha Levin <sashal@...nel.org>, greybus-dev@...ts.linaro.org,
        devel@...verdev.osuosl.org
Subject: [PATCH AUTOSEL 4.19 052/172] staging: greybus: fix a missing-check bug in gb_lights_light_config()

From: Chen Zhou <chenzhou10@...wei.com>

[ Upstream commit 9bb086e5ba9495ac150fbbcc5c8c2bccc06261dd ]

In gb_lights_light_config(), 'light->name' is allocated by kstrndup().
It returns NULL when fails, add check for it.

Signed-off-by: Chen Zhou <chenzhou10@...wei.com>
Acked-by: Rui Miguel Silva <rmfrfs@...il.com>
Link: https://lore.kernel.org/r/20200401030017.100274-1-chenzhou10@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/staging/greybus/light.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/greybus/light.c b/drivers/staging/greybus/light.c
index 40680eaf3974..db06cd544af5 100644
--- a/drivers/staging/greybus/light.c
+++ b/drivers/staging/greybus/light.c
@@ -1028,7 +1028,8 @@ static int gb_lights_light_config(struct gb_lights *glights, u8 id)
 
 	light->channels_count = conf.channel_count;
 	light->name = kstrndup(conf.name, NAMES_MAX, GFP_KERNEL);
-
+	if (!light->name)
+		return -ENOMEM;
 	light->channels = kcalloc(light->channels_count,
 				  sizeof(struct gb_channel), GFP_KERNEL);
 	if (!light->channels)
-- 
2.25.1