From: Oleksij Rempel <o.rempel@pengutronix.de>
To: Woojung Huh <woojung.huh@microchip.com>,
UNGLinuxDriver@microchip.com, Andrew Lunn <andrew@lunn.ch>,
Florian Fainelli <f.fainelli@gmail.com>,
Vivien Didelot <vivien.didelot@gmail.com>,
Vladimir Oltean <olteanv@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>
Cc: Oleksij Rempel <o.rempel@pengutronix.de>,
Colin Ian King <colin.king@canonical.com>,
kernel@pengutronix.de, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org,
Russell King <linux@armlinux.org.uk>,
Michael Grzeschik <m.grzeschik@pengutronix.de>
Subject: [PATCH net-next v1 1/3] net: dsa: ksz: ksz8863_smi_probe: fix possible NULL pointer dereference
Date: Thu, 29 Apr 2021 13:08:31 +0200 [thread overview]
Message-ID: <20210429110833.2181-1-o.rempel@pengutronix.de> (raw)
Fix possible NULL pointer dereference in case devm_kzalloc() failed to
allocate memory.
Fixes: 60a364760002 ("net: dsa: microchip: Add Microchip KSZ8863 SMI based driver support")
Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
---
drivers/net/dsa/microchip/ksz8863_smi.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/net/dsa/microchip/ksz8863_smi.c b/drivers/net/dsa/microchip/ksz8863_smi.c
index 30d97ea7a949..9fb38e99001a 100644
--- a/drivers/net/dsa/microchip/ksz8863_smi.c
+++ b/drivers/net/dsa/microchip/ksz8863_smi.c
@@ -147,6 +147,9 @@ static int ksz8863_smi_probe(struct mdio_device *mdiodev)
int i;
ksz8 = devm_kzalloc(&mdiodev->dev, sizeof(struct ksz8), GFP_KERNEL);
+ if (!ksz8)
+ return -ENOMEM;
+
ksz8->priv = mdiodev;
dev = ksz_switch_alloc(&mdiodev->dev, ksz8);
--
2.29.2
next reply other threads:[~2021-04-29 11:08 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-29 11:08 Oleksij Rempel [this message]
2021-04-29 11:08 ` [PATCH net-next v1 2/3] net: dsa: ksz: ksz8795_spi_probe: fix possible NULL pointer dereference Oleksij Rempel
2021-04-29 12:14 ` Andrew Lunn
2021-04-29 11:08 ` [PATCH net-next v1 3/3] net: dsa: ksz: ksz8863_smi_probe: set proper return value for ksz_switch_alloc() Oleksij Rempel
2021-04-29 12:14 ` Andrew Lunn
2021-04-29 12:14 ` [PATCH net-next v1 1/3] net: dsa: ksz: ksz8863_smi_probe: fix possible NULL pointer dereference Andrew Lunn
2021-04-29 23:00 ` patchwork-bot+netdevbpf
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