linux-kernel - Re: [PATCH] Net: ethernet: ti: netcp: Fix inbound ping crash if MTU size is greater than 1500

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Message-Id: <20180117.162023.812785780955505588.davem@davemloft.net>
Date:   Wed, 17 Jan 2018 16:20:23 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     rchang@...com
Cc:     w-kwok2@...com, m-karicheri2@...com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Net: ethernet: ti: netcp: Fix inbound ping crash if
 MTU size is greater than 1500

From: Rex Chang <rchang@...com>
Date: Tue, 16 Jan 2018 15:16:01 -0500

> In the receive queue for 4096 bytes fragments, the page address
> set in the SW data0 field of the descriptor is not the one we got
> when doing the reassembly in receive. The page structure was retrieved
> from the wrong descriptor into SW data0 which is then causing a
> page fault when UDP checksum is accessing data above 1500.
> 
> Signed-off-by: Rex Chang <rchang@...com>

Applied, thank you.