From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH net] ptr_ring: prevent integer overflow when
 calculating size
Date: Sun, 11 Feb 2018 22:34:50 -0500 (EST)
Message-ID: <20180211.223450.926436849855081876.davem@davemloft.net>
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Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
        mst@redhat.com, ebiggers3@gmail.com
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From: Jason Wang <jasowang@redhat.com>
Date: Sun, 11 Feb 2018 11:28:12 +0800

> Switch to use dividing to prevent integer overflow when size is too
> big to calculate allocation size properly.
> 
> Reported-by: Eric Biggers <ebiggers3@gmail.com>
> Fixes: 6e6e41c31122 ("ptr_ring: fail early if queue occupies more than KMALLOC_MAX_SIZE")
> Signed-off-by: Jason Wang <jasowang@redhat.com>

Applied and queued up for -stable, thanks Jason.