netdev - Re: [PATCH net-next] udp: avoid refcount_t saturation in __udp_gso

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Message-Id: <20180511.123010.1270065299599343262.davem@davemloft.net>
Date:   Fri, 11 May 2018 12:30:10 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     edumazet@...gle.com
Cc:     netdev@...r.kernel.org, eric.dumazet@...il.com, willemb@...gle.com,
        alexander.h.duyck@...el.com
Subject: Re: [PATCH net-next] udp: avoid refcount_t saturation in
 __udp_gso_segment()

From: Eric Dumazet <edumazet@...gle.com>
Date: Thu, 10 May 2018 19:07:13 -0700

> For some reason, Willem thought that the issue we fixed for TCP
> in commit 7ec318feeed1 ("tcp: gso: avoid refcount_t warning from
> tcp_gso_segment()") was not relevant for UDP GSO.
> 
> But syzbot found its way.
 ...
> Fixes: ad405857b174 ("udp: better wmem accounting on gso")
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Cc: Willem de Bruijn <willemb@...gle.com>
> Cc: Alexander Duyck <alexander.h.duyck@...el.com>
> Reported-by: syzbot <syzkaller@...glegroups.com>

Applied, thanks Eric.