From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Gustavo A. R. Silva" Subject: [PATCH] net: fix potential null pointer dereference Date: Tue, 23 May 2017 18:18:37 -0500 Message-ID: <20170523231837.GA9364@embeddedgus> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: osmocom-net-gprs@lists.osmocom.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, "Gustavo A. R. Silva" To: Pablo Neira Ayuso , Harald Welte Return-path: Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Add null check to avoid a potential null pointer dereference. Addresses-Coverity-ID: 1408831 Signed-off-by: Gustavo A. R. Silva --- drivers/net/gtp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c index 4fea1b3..7b652bb 100644 --- a/drivers/net/gtp.c +++ b/drivers/net/gtp.c @@ -873,7 +873,7 @@ static struct gtp_dev *gtp_find_dev(struct net *src_net, struct nlattr *nla[]) /* Check if there's an existing gtpX device to configure */ dev = dev_get_by_index_rcu(net, nla_get_u32(nla[GTPA_LINK])); - if (dev->netdev_ops == >p_netdev_ops) + if (dev && dev->netdev_ops == >p_netdev_ops) gtp = netdev_priv(dev); put_net(net); -- 2.5.0