This is a note to let you know that I've just added the patch titled
net/mlx4_en: Avoid adding steering rules with invalid ring
to the 4.4-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-mlx4_en-avoid-adding-steering-rules-with-invalid-ring.patch and it can be found in the queue-4.4 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 10:31:53 CEST 2018
From: Talat Batheesh talatb@mellanox.com Date: Tue, 9 May 2017 14:45:23 +0300 Subject: net/mlx4_en: Avoid adding steering rules with invalid ring
From: Talat Batheesh talatb@mellanox.com
[ Upstream commit 89c557687a32c294e9d25670a96e9287c09f2d5f ]
Inserting steering rules with illegal ring is an invalid operation, block it.
Fixes: 820672812f82 ('net/mlx4_en: Manage flow steering rules with ethtool') Signed-off-by: Talat Batheesh talatb@mellanox.com Signed-off-by: Tariq Toukan tariqt@mellanox.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/mellanox/mlx4/en_ethtool.c | 5 +++++ 1 file changed, 5 insertions(+)
--- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c @@ -1513,6 +1513,11 @@ static int mlx4_en_flow_replace(struct n qpn = priv->drop_qp.qpn; else if (cmd->fs.ring_cookie & EN_ETHTOOL_QP_ATTACH) { qpn = cmd->fs.ring_cookie & (EN_ETHTOOL_QP_ATTACH - 1); + if (qpn < priv->rss_map.base_qpn || + qpn >= priv->rss_map.base_qpn + priv->rx_ring_num) { + en_warn(priv, "rxnfc: QP (0x%x) doesn't exist\n", qpn); + return -EINVAL; + } } else { if (cmd->fs.ring_cookie >= priv->rx_ring_num) { en_warn(priv, "rxnfc: RX ring (%llu) doesn't exist\n",
Patches currently in stable-queue which might be from talatb@mellanox.com are
queue-4.4/net-mlx4_en-avoid-adding-steering-rules-with-invalid-ring.patch queue-4.4/net-mlx4-fix-the-check-in-attaching-steering-rules.patch