netdev - Re: [PATCH v2] net: tls: fix possible info leak in tls_set_device

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Date:   Fri, 24 Feb 2023 10:57:29 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Hangyu Hua <hbh25y@...il.com>
Cc:     borisp@...dia.com, john.fastabend@...il.com, davem@...emloft.net,
        edumazet@...gle.com, pabeni@...hat.com, ilyal@...lanox.com,
        aviadye@...lanox.com, sd@...asysnail.net, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] net: tls: fix possible info leak in
 tls_set_device_offload()

On Fri, 24 Feb 2023 18:28:39 +0800 Hangyu Hua wrote:
> After tls_set_device_offload() fails, we enter tls_set_sw_offload(). But
> tls_set_sw_offload can't set cctx->iv and cctx->rec_seq to NULL if it fails
> before kmalloc cctx->iv. It is better to Set them to NULL to avoid any
> potential info leak.

Please show clear chain of events which can lead to a use-after-free 
or info leak. And if you can't please don't send the patch.