tcp: cleanup sk_tx_skb_cache before reuse

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TCP stack relies on the fact that a freshly allocated skb
has skb->cb[] and skb_shinfo(skb)->tx_flags cleared.

When recycling tx skb, we must ensure these fields are cleared.

Fixes: 472c2e07ee ("tcp: add one skb cache for tx")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Soheil Hassas Yeganeh <soheil@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Eric Dumazet 2019-03-29 12:46:17 -07:00 • committed by David S. Miller

parent faddd6cf67

commit eb70a1ae23

1 changed files with 2 additions and 0 deletions

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net/ipv4/tcp.c

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