This is a note to let you know that I've just added the patch titled
net: freescale: fix potential null pointer dereference
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-freescale-fix-potential-null-pointer-dereference.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Mon Apr 9 17:09:24 CEST 2018
From: "Gustavo A. R. Silva" <garsilva@xxxxxxxxxxxxxx>
Date: Tue, 30 May 2017 17:38:43 -0500
Subject: net: freescale: fix potential null pointer dereference
From: "Gustavo A. R. Silva" <garsilva@xxxxxxxxxxxxxx>
[ Upstream commit 06d2d6431bc8d41ef5ffd8bd4b52cea9f72aed22 ]
Add NULL check before dereferencing pointer _id_ in order to avoid
a potential NULL pointer dereference.
Addresses-Coverity-ID: 1397995
Signed-off-by: Gustavo A. R. Silva <garsilva@xxxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/freescale/fsl_pq_mdio.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/freescale/fsl_pq_mdio.c
+++ b/drivers/net/ethernet/freescale/fsl_pq_mdio.c
@@ -381,7 +381,7 @@ static int fsl_pq_mdio_probe(struct plat
{
const struct of_device_id *id =
of_match_device(fsl_pq_mdio_match, &pdev->dev);
- const struct fsl_pq_mdio_data *data = id->data;
+ const struct fsl_pq_mdio_data *data;
struct device_node *np = pdev->dev.of_node;
struct resource res;
struct device_node *tbi;
@@ -389,6 +389,13 @@ static int fsl_pq_mdio_probe(struct plat
struct mii_bus *new_bus;
int err;
+ if (!id) {
+ dev_err(&pdev->dev, "Failed to match device\n");
+ return -ENODEV;
+ }
+
+ data = id->data;
+
dev_dbg(&pdev->dev, "found %s compatible node\n", id->compatible);
new_bus = mdiobus_alloc_size(sizeof(*priv));
Patches currently in stable-queue which might be from garsilva@xxxxxxxxxxxxxx are
queue-4.9/pm-devfreq-fix-potential-null-pointer-dereference-in-governor_store.patch
queue-4.9/net-freescale-fix-potential-null-pointer-dereference.patch