netdev - Re: [PATCH net-next] net: fix pointer check in skb_pp_cow

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Message-ID: <20240219173805.GK40273@kernel.org>
Date: Mon, 19 Feb 2024 17:38:05 +0000
From: Simon Horman <horms@...nel.org>
To: Lorenzo Bianconi <lorenzo@...nel.org>
Cc: netdev@...r.kernel.org, lorenzo.bianconi@...hat.com, kuba@...nel.org,
	davem@...emloft.net, edumazet@...gle.com, pabeni@...hat.com,
	hawk@...nel.org, ilias.apalodimas@...aro.org,
	linyunsheng@...wei.com, toke@...hat.com, jwiedmann.dev@...il.com
Subject: Re: [PATCH net-next] net: fix pointer check in skb_pp_cow_data
 routine

On Sat, Feb 17, 2024 at 12:12:14PM +0100, Lorenzo Bianconi wrote:
> Properly check page pointer returned by page_pool_dev_alloc routine in
> skb_pp_cow_data() for non-linear part of the original skb.
> 
> Reported-by: Julian Wiedmann <jwiedmann.dev@...il.com>
> Closes: https://lore.kernel.org/netdev/cover.1707729884.git.lorenzo@kernel.org/T/#m7d189b0015a7281ed9221903902490c03ed19a7a
> Fixes: e6d5dbdd20aa ("xdp: add multi-buff support for xdp running in generic mode")
> Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>

Reviewed-by: Simon Horman <horms@...nel.org>