netdev - [PATCH net 0/2] Prevent extreme TSO parameters from stalling TX queues

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Message-ID: <1343668498.2667.5.camel@bwh-desktop.uk.solarflarecom.com>
Date:	Mon, 30 Jul 2012 18:14:58 +0100
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	David Miller <davem@...emloft.net>
CC:	<netdev@...r.kernel.org>, <linux-net-drivers@...arflare.com>
Subject: [PATCH net 0/2] Prevent extreme TSO parameters from stalling TX
 queues

The following changes fix a potential DoS by peers or local users on
network interfaces using the sfc driver (and possibly others) with TSO
enabled (as it is by default).  Please apply them to the net tree and
your stable update queue.

Ben.

Ben Hutchings (2):
  tcp: Limit number of segments generated by GSO per skb
  sfc: Correct the minimum TX queue size

 drivers/net/ethernet/sfc/efx.c     |    5 +++++
 drivers/net/ethernet/sfc/efx.h     |   11 +++++++----
 drivers/net/ethernet/sfc/ethtool.c |   16 +++++++++++-----
 drivers/net/ethernet/sfc/tx.c      |   20 ++++++++++++++++++++
 include/net/tcp.h                  |    3 +++
 net/ipv4/tcp.c                     |    4 +++-
 net/ipv4/tcp_output.c              |   17 +++++++++--------
 7 files changed, 58 insertions(+), 18 deletions(-)

-- 
1.7.7.6


-- 
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

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