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Date:   Mon, 18 May 2020 08:59:56 -0700
From:   Eric Dumazet <>
To:     Boris Sukholitko <>,
Subject: Re: [PATCH net] __netif_receive_skb_core: pass skb by reference

On 5/18/20 2:01 AM, Boris Sukholitko wrote:
> __netif_receive_skb_core may change the skb pointer passed into it (e.g.
> in rx_handler). The original skb may be freed as a result of this
> operation.
> The callers of __netif_receive_skb_core may further process original skb
> by using pt_prev pointer returned by __netif_receive_skb_core thus
> leading to unpleasant effects.
> The solution is to pass skb by reference into __netif_receive_skb_core.
> Signed-off-by: Boris Sukholitko <>

Please provide a Fixes: tag for such a scary patch.


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