linux-kernel - [PATCH v1] drivers/pinctrl: Switch to use kmemdup

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-next>] [day] [month] [year] [list]

Message-Id: <20240822044156.2301-1-shenlichuan@vivo.com>
Date: Thu, 22 Aug 2024 12:41:56 +0800
From: Shen Lichuan <shenlichuan@...o.com>
To: linus.walleij@...aro.org
Cc: linux-gpio@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	opensource.kernel@...o.com,
	Shen Lichuan <shenlichuan@...o.com>
Subject: [PATCH v1] drivers/pinctrl: Switch to use kmemdup_array() 

Let the kememdup_array() take care about 
multiplication and possible overflows.

Signed-off-by: Shen Lichuan <shenlichuan@...o.com>
---
 drivers/pinctrl/pinctrl-utils.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-utils.c b/drivers/pinctrl/pinctrl-utils.c
index d81d7b46116c..f18903de1d71 100644
--- a/drivers/pinctrl/pinctrl-utils.c
+++ b/drivers/pinctrl/pinctrl-utils.c
@@ -70,8 +70,8 @@ int pinctrl_utils_add_map_configs(struct pinctrl_dev *pctldev,
 	if (WARN_ON(*num_maps == *reserved_maps))
 		return -ENOSPC;
 
-	dup_configs = kmemdup(configs, num_configs * sizeof(*dup_configs),
-			      GFP_KERNEL);
+	dup_configs = kmemdup_array(configs, num_configs,
+				sizeof(*dup_configs), GFP_KERNEL);
 	if (!dup_configs)
 		return -ENOMEM;
 
-- 
2.17.1