commit 09a70683607778bf96ef2db72e8c3b823339734f
Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date:   Thu Jun 27 08:14:21 2019 +0800

    Linux 4.9.184

commit caa51edc7e9606418611e68de624efbd0042adf5
Author: Eric Dumazet <edumazet@google.com>
Date:   Fri Jun 21 06:09:55 2019 -0700

    tcp: refine memory limit test in tcp_fragment()
    
    commit b6653b3629e5b88202be3c9abc44713973f5c4b4 upstream.
    
    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 <edumazet@google.com>
    Reported-by: Christoph Paasch <cpaasch@apple.com>
    Tested-by: Christoph Paasch <cpaasch@apple.com>
    Signed-off-by: David S. Miller <davem@davemloft.net>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>