Messages in this thread | | | Date | Fri, 8 Jan 2016 15:10:31 +0300 | Subject | Re: [PATCH] net: preserve IP control block during GSO segmentation | From | Konstantin Khlebnikov <> |
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On Fri, Jan 8, 2016 at 3:00 PM, Konstantin Khlebnikov <koct9i@gmail.com> wrote: > Skb_gso_segment() uses skb control block during segmentation. > This patch adds 32-bytes room for previous control block which > will be copied into all resulting segments. > > This patch fixes kernel crash during fragmenting forwarded packets. > Fragmentation requires valid IP CB in skb for clearing ip options. > Also patch removes custom save/restore in ovs code, now it's redundant. > > Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com> > Link: http://lkml.kernel.org/r/CALYGNiP-0MZ-FExV2HutTvE9U-QQtkKSoE--KN=JQE5STYsjAA@mail.gmail.com
This patch is alternative for [PATCH] net: prevent corruption of skb when using skb_gso_segment by Thadeu Lima de Souza Cascardo. This version have no stack allocations and no changes in code. It just shifts gso cb.
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