linux-kernel - Re: [PATCH net] net: atm: fix use after free in lec

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Message-ID: <20250319123924.GD280585@kernel.org>
Date: Wed, 19 Mar 2025 12:39:24 +0000
From: Simon Horman <horms@...nel.org>
To: Dan Carpenter <dan.carpenter@...aro.org>
Cc: "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: Re: [PATCH net] net: atm: fix use after free in lec_send()

On Fri, Mar 14, 2025 at 01:10:57PM +0300, Dan Carpenter wrote:
> The ->send() operation frees skb so save the length before calling
> ->send() to avoid a use after free.
> 
> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
> Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>

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