From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Varun Prakash <varun@chelsio.com>,
"Martin K . Petersen" <martin.petersen@oracle.com>,
Sasha Levin <sashal@kernel.org>,
linux-scsi@vger.kernel.org
Subject: [PATCH AUTOSEL 4.4 12/13] scsi: libcxgbi: add a check for NULL pointer in cxgbi_check_route()
Date: Sat, 8 Jun 2019 07:48:44 -0400 [thread overview]
Message-ID: <20190608114847.9973-12-sashal@kernel.org> (raw)
In-Reply-To: <20190608114847.9973-1-sashal@kernel.org>
From: Varun Prakash <varun@chelsio.com>
[ Upstream commit cc555759117e8349088e0c5d19f2f2a500bafdbd ]
ip_dev_find() can return NULL so add a check for NULL pointer.
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/scsi/cxgbi/libcxgbi.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c
index f3bb7af4e984..5eaf14c15590 100644
--- a/drivers/scsi/cxgbi/libcxgbi.c
+++ b/drivers/scsi/cxgbi/libcxgbi.c
@@ -634,6 +634,10 @@ static struct cxgbi_sock *cxgbi_check_route(struct sockaddr *dst_addr)
if (ndev->flags & IFF_LOOPBACK) {
ndev = ip_dev_find(&init_net, daddr->sin_addr.s_addr);
+ if (!ndev) {
+ err = -ENETUNREACH;
+ goto rel_neigh;
+ }
mtu = ndev->mtu;
pr_info("rt dev %s, loopback -> %s, mtu %u.\n",
n->dev->name, ndev->name, mtu);
--
2.20.1
next prev parent reply other threads:[~2019-06-08 11:49 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-08 11:48 [PATCH AUTOSEL 4.4 01/13] mISDN: make sure device name is NUL terminated Sasha Levin
2019-06-08 11:48 ` [PATCH AUTOSEL 4.4 02/13] x86/CPU/AMD: Don't force the CPB cap when running under a hypervisor Sasha Levin
2019-06-08 11:48 ` [PATCH AUTOSEL 4.4 03/13] perf/ring_buffer: Fix exposing a temporarily decreased data_head Sasha Levin
2019-06-08 11:48 ` [PATCH AUTOSEL 4.4 04/13] perf/ring_buffer: Add ordering to rb->nest increment Sasha Levin
2019-06-08 11:48 ` [PATCH AUTOSEL 4.4 05/13] gpio: fix gpio-adp5588 build errors Sasha Levin
2019-06-08 11:48 ` [PATCH AUTOSEL 4.4 06/13] net: tulip: de4x5: Drop redundant MODULE_DEVICE_TABLE() Sasha Levin
2019-06-08 11:48 ` [PATCH AUTOSEL 4.4 07/13] i2c: dev: fix potential memory leak in i2cdev_ioctl_rdwr Sasha Levin
2019-06-08 11:48 ` [PATCH AUTOSEL 4.4 08/13] configfs: Fix use-after-free when accessing sd->s_dentry Sasha Levin
2019-06-08 11:48 ` [PATCH AUTOSEL 4.4 09/13] ia64: fix build errors by exporting paddr_to_nid() Sasha Levin
2019-06-08 11:48 ` [PATCH AUTOSEL 4.4 10/13] KVM: PPC: Book3S: Use new mutex to synchronize access to rtas token list Sasha Levin
2019-06-08 11:48 ` [PATCH AUTOSEL 4.4 11/13] net: sh_eth: fix mdio access in sh_eth_close() for R-Car Gen2 and RZ/A1 SoCs Sasha Levin
2019-06-08 11:48 ` Sasha Levin [this message]
2019-06-08 11:48 ` [PATCH AUTOSEL 4.4 13/13] scsi: libsas: delete sas port if expander discover failed Sasha Levin
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