From: Eric Dumazet <eric.dumazet@gmail.com>
To: Eric Dumazet <edumazet@google.com>,
"David S . Miller" <davem@davemloft.net>
Cc: netdev <netdev@vger.kernel.org>, Eric Dumazet <eric.dumazet@gmail.com>
Subject: Re: [PATCH net-next 2/2] inet: frags: fix ip6frag_low_thresh boundary
Date: Wed, 4 Apr 2018 08:40:04 -0700 [thread overview]
Message-ID: <e94b9d30-a3e7-ed83-fa19-31b1f4159020@gmail.com> (raw)
In-Reply-To: <20180404153510.213392-1-edumazet@google.com>
On 04/04/2018 08:35 AM, Eric Dumazet wrote:
> Giving an integer to proc_doulongvec_minmax() is dangerous on 64bit arches,
> since linker might place next to it a non zero value preventing a change
> to ip6frag_low_thresh.
>
> ip6frag_low_thresh is not used anymore in the kernel, but we do not
> want to prematuraly break user scripts wanting to change it.
>
> Since specifying a minimal value of 0 for proc_doulongvec_minmax()
> is moot, let's remove these zero values in all defrag units.
>
> Fixes: 6e00f7dd5e4e ("ipv6: frags: fix /proc/sys/net/ipv6/ip6frag_low_thresh")
> Signed-off-by: Eric Dumazet <edumazet@google.com>
> Reported-by: Maciej Żenczykowski <maze@google.com>
David, please ignore the net-next 2/2 in the title, there is a single patch, targeting net tree,
sorry for the confusion.
next prev parent reply other threads:[~2018-04-04 15:40 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-04 15:35 [PATCH net-next 2/2] inet: frags: fix ip6frag_low_thresh boundary Eric Dumazet
2018-04-04 15:40 ` Eric Dumazet [this message]
2018-04-04 16:05 ` David Miller
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