From: <gregkh@linuxfoundation.org>
To: talatb@mellanox.com, avivh@mellanox.com, davem@davemloft.net,
gregkh@linuxfoundation.org, monis@mellanox.com,
saeedm@mellanox.com
Cc: <stable@vger.kernel.org>, <stable-commits@vger.kernel.org>
Subject: Patch "net/mlx5: Avoid dereferencing uninitialized pointer" has been added to the 4.10-stable tree
Date: Sat, 29 Apr 2017 08:23:22 +0200 [thread overview]
Message-ID: <1493447002104193@kroah.com> (raw)
This is a note to let you know that I've just added the patch titled
net/mlx5: Avoid dereferencing uninitialized pointer
to the 4.10-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-mlx5-avoid-dereferencing-uninitialized-pointer.patch
and it can be found in the queue-4.10 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 Sat Apr 29 08:22:40 CEST 2017
From: Talat Batheesh <talatb@mellanox.com>
Date: Tue, 28 Mar 2017 16:13:41 +0300
Subject: net/mlx5: Avoid dereferencing uninitialized pointer
From: Talat Batheesh <talatb@mellanox.com>
[ Upstream commit e497ec680c4cd51e76bfcdd49363d9ab8d32a757 ]
In NETDEV_CHANGEUPPER event the upper_info field is valid
only when linking is true. Otherwise it should be ignored.
Fixes: 7907f23adc18 (net/mlx5: Implement RoCE LAG feature)
Signed-off-by: Talat Batheesh <talatb@mellanox.com>
Reviewed-by: Aviv Heller <avivh@mellanox.com>
Reviewed-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/ethernet/mellanox/mlx5/core/lag.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag.c
@@ -294,7 +294,7 @@ static int mlx5_handle_changeupper_event
struct netdev_notifier_changeupper_info *info)
{
struct net_device *upper = info->upper_dev, *ndev_tmp;
- struct netdev_lag_upper_info *lag_upper_info;
+ struct netdev_lag_upper_info *lag_upper_info = NULL;
bool is_bonded;
int bond_status = 0;
int num_slaves = 0;
@@ -303,7 +303,8 @@ static int mlx5_handle_changeupper_event
if (!netif_is_lag_master(upper))
return 0;
- lag_upper_info = info->upper_info;
+ if (info->linking)
+ lag_upper_info = info->upper_info;
/* The event may still be of interest if the slave does not belong to
* us, but is enslaved to a master which has one or more of our netdevs
Patches currently in stable-queue which might be from talatb@mellanox.com are
queue-4.10/net-mlx5-avoid-dereferencing-uninitialized-pointer.patch
reply other threads:[~2017-04-29 6:24 UTC|newest]
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