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From: Greg KH on 30 Jul 2010 15:00 2.6.33-stable review patch. If anyone has any objections, please let us know. ------------------ From: Herbert Xu <herbert(a)gondor.apana.org.au> [ Upstream commit 622e0ca1cd4d459f5af4f2c65f4dc0dd823cb4c3 ] When GRO produces fraglist entries, and the resulting skb hits an interface that is incapable of TSO but capable of FRAGLIST, we end up producing a bogus packet with gso_size non-zero. This was reported in the field with older versions of KVM that did not set the TSO bits on tuntap. This patch fixes that. Reported-by: Igor Zhang <yugzhang(a)redhat.com> Signed-off-by: Herbert Xu <herbert(a)gondor.apana.org.au> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh(a)suse.de> --- net/core/skbuff.c | 1 + 1 file changed, 1 insertion(+) --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -2729,6 +2729,7 @@ int skb_gro_receive(struct sk_buff **hea *NAPI_GRO_CB(nskb) = *NAPI_GRO_CB(p); skb_shinfo(nskb)->frag_list = p; skb_shinfo(nskb)->gso_size = pinfo->gso_size; + pinfo->gso_size = 0; skb_header_release(p); nskb->prev = p; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |