From: Eric Dumazet <eduma...@google.com>
Date: Fri, 21 Jun 2019 06:09:55 -0700
> tcp_fragment() might be called for skbs in the write queue.
>
> Memory limits might have been exceeded because tcp_sendmsg() only
> checks limits at full skb (64KB) boundaries.
>
> Therefore, we need to make sure tcp_fragment() wont punish applications
> that might have setup very low SO_SNDBUF values.
>
> Fixes: f070ef2ac667 ("tcp: tcp_fragment() should apply sane memory limits")
> Signed-off-by: Eric Dumazet <eduma...@google.com>
> Reported-by: Christoph Paasch <cpaa...@apple.com>
Applied and queued up for -stable.
