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 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: net-freescale-fix-potential-null-pointer-dereference.patch and it can be found in the queue-3.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From foo@baz Tue Apr 10 13:58:07 CEST 2018
From: "Gustavo A. R. Silva" garsilva@embeddedor.com Date: Tue, 30 May 2017 17:38:43 -0500 Subject: net: freescale: fix potential null pointer dereference
From: "Gustavo A. R. Silva" garsilva@embeddedor.com
[ 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@embeddedor.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- 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 @@ -370,7 +370,7 @@ 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; @@ -378,6 +378,13 @@ 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@embeddedor.com are
queue-3.18/net-freescale-fix-potential-null-pointer-dereference.patch