From: "Gustavo A. R. Silva" <garsilva@embeddedor.com>
To: Jiri Kosina <jikos@kernel.org>,
Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
"Gustavo A. R. Silva" <garsilva@embeddedor.com>
Subject: [PATCH] HID: hid-logitech-hidpp: add NULL check on devm_kmemdup() return value
Date: Fri, 7 Jul 2017 00:12:13 -0500 [thread overview]
Message-ID: <20170707051213.GA6074@embeddedgus> (raw)
Check return value from call to devm_kmemdup()
in order to prevent a NULL pointer dereference.
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
---
drivers/hid/hid-logitech-hidpp.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index 41b3946..501e16a 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -2732,6 +2732,9 @@ static int hidpp_initialize_battery(struct hidpp_device *hidpp)
hidpp_battery_props,
sizeof(hidpp_battery_props),
GFP_KERNEL);
+ if (!battery_props)
+ return -ENOMEM;
+
num_battery_props = ARRAY_SIZE(hidpp_battery_props) - 2;
if (hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_MILEAGE)
--
2.5.0
next reply other threads:[~2017-07-07 5:12 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-07 5:12 Gustavo A. R. Silva [this message]
2017-07-12 7:40 ` [PATCH] HID: hid-logitech-hidpp: add NULL check on devm_kmemdup() return value Benjamin Tissoires
2017-07-17 5:00 ` Gustavo A. R. Silva
2017-07-20 13:46 ` Jiri Kosina
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