netdev - Re: [PATCH] net/nfc/nci: use memset avoid infoleaks

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Message-Id: <20220301093424.2053471-1-lv.ruyi@zte.com.cn>
Date:   Tue,  1 Mar 2022 09:34:24 +0000
From:   Lv Ruyi <cgel.zte@...il.com>
To:     krzysztof.kozlowski@...onical.com
Cc:     cgel.zte@...il.com, chi.minghao@....com.cn, davem@...emloft.net,
        kuba@...nel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, zealci@....com.cn
Subject: Re: [PATCH] net/nfc/nci: use memset avoid infoleaks

hello sir

I think this way: On 64-bit systems, struct nci_set_config_param has 
an added padding of 7 bytes between struct members id and len. Even 
though all struct members are initialized, the 7-byte hole will 
contain data from the kernel stack. 

thanks
Minghao