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From: Florian Westphal <fw@strlen.de>
To: netdev@vger.kernel.org
Cc: edumazet@google.com
Subject: [PATCH 0/3] net: minor gso encapsulation fixes
Date: Sun, 19 Oct 2014 22:42:17 +0200	[thread overview]
Message-ID: <1413751340-19621-1-git-send-email-fw@strlen.de> (raw)

The following series fixes a minor bug in the gro segmentation handlers
when handling encapsulation offloads.

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 to all
the various skb_gso_segment call sites.

While looking into this, I also found that size computation of the individual
segments is incorrect as we do not consider skb->encapsulation.

 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, 19 insertions(+), 12 deletions(-)

             reply	other threads:[~2014-10-19 20:42 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-19 20:42 Florian Westphal [this message]
2014-10-19 20:42 ` [PATCH 1/4] net: gso: use feature flag argument in all protocol gso handlers Florian Westphal
2014-10-19 20:42 ` [PATCH 2/4] net: make skb_gso_segment error handling more robust Florian Westphal
2014-10-20  0:39   ` David Miller
2014-10-20  7:05     ` Florian Westphal
2014-10-19 20:42 ` [PATCH 3/4] net: core: handle encapsulation offloads when computing segment lengths Florian Westphal
2014-10-19 20:55 ` [PATCH 0/3] net: minor gso encapsulation fixes Florian Westphal

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