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From: Florian Westphal <fw@strlen.de>
To: <netdev@vger.kernel.org>
Cc: edumazet@google.com, therbert@google.com
Subject: [PATCH v2 0/3] net: minor gso encapsulation fixes
Date: Mon, 20 Oct 2014 13:49:15 +0200	[thread overview]
Message-ID: <1413805758-30026-1-git-send-email-fw@strlen.de> (raw)

The following series fixes a minor bug in the gso segmentation handlers
when encapsulation offload is used.

Theoretically this could cause kernel panic when the stack tries
to software-segment such a GRE offload packet, but it looks like there
is only one affected call site (tbf scheduler) and it handles NULL
return value.

I've included a followup patch to add IS_ERR_OR_NULL checks where needed.

While looking into this, I also found that size computation of the individual
segments is incorrect if skb->encapsulation is set.

Please see individual patches for delta vs. v1.

 core/skbuff.c                    |   13 ++++++++++---
 ipv4/af_inet.c                   |    2 +-
 ipv4/gre_offload.c               |    2 +-
 ipv4/ip_output.c                 |    2 +-
 ipv4/udp_offload.c               |    2 +-
 ipv6/ip6_offload.c               |    2 +-
 mpls/mpls_gso.c                  |    2 +-
 netfilter/nfnetlink_queue_core.c |    2 +-
 openvswitch/datapath.c           |    2 ++
 xfrm/xfrm_output.c               |    2 ++
 10 files changed, 21 insertions(+), 10 deletions(-)

             reply	other threads:[~2014-10-20 11:50 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-20 11:49 Florian Westphal [this message]
2014-10-20 11:49 ` [PATCH v2 1/3] net: gso: use feature flag argument in all protocol gso handlers Florian Westphal
2014-10-20 11:49 ` [PATCH v2 2/3] net: make skb_gso_segment error handling more robust Florian Westphal
2014-10-20 11:49 ` [PATCH v2 3/3] net: core: handle encapsulation offloads when computing segment lengths Florian Westphal
2014-10-20 18:04 ` [PATCH v2 0/3] net: minor gso encapsulation fixes David Miller

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