Patch "net/mlx5e: IPoIB, Fix access to invalid memory address" has been added to the 4.13-stable tree

This is a note to let you know that I've just added the patch titled

net/mlx5e: IPoIB, Fix access to invalid memory address

to the 4.13-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-mlx5e-ipoib-fix-access-to-invalid-memory-address.patch
and it can be found in the queue-4.13 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Roi Dayan <[email protected]>
Date: Mon, 21 Aug 2017 12:04:50 +0300
Subject: net/mlx5e: IPoIB, Fix access to invalid memory address

From: Roi Dayan <[email protected]>

[ Upstream commit 38e8a5c040d3ec99a8351c688dcdf0f549611565 ]

When cleaning rdma netdevice we need to save the mdev pointer because priv is released when we release netdev.

This bug was found using the kernel address sanitizer (KASAN). use-after-free in mlx5_rdma_netdev_free+0xe3/0x100 [mlx5_core]

---
 drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

@@ -572,12 +572,13 @@ void mlx5_rdma_netdev_free(struct net_de
 {
 	struct mlx5e_priv          *priv    = mlx5i_epriv(netdev);
 	const struct mlx5e_profile *profile = priv->profile;
+	struct mlx5_core_dev       *mdev    = priv->mdev;
 
 	mlx5e_detach_netdev(priv);
 	profile->cleanup(priv);
 	destroy_workqueue(priv->wq);
 	free_netdev(netdev);
 
-	mlx5e_destroy_mdev_resources(priv->mdev);
+	mlx5e_destroy_mdev_resources(mdev);
 }
 EXPORT_SYMBOL(mlx5_rdma_netdev_free);

Patches currently in stable-queue which might be from [email protected] are

queue-4.13/net-mlx5e-ipoib-fix-access-to-invalid-memory-address.patch