linux-kernel - Re: [PATCH v2] net: xfrm: Fix xfrm_address

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Message-ID: <8a80ec0b-154a-4e6c-8fb8-916f506cd26d@p183>
Date:   Sun, 25 Jun 2023 17:07:11 +0300
From:   Alexey Dobriyan <adobriyan@...il.com>
To:     Lin Ma <linma@....edu.cn>
Cc:     steffen.klassert@...unet.com, herbert@...dor.apana.org.au,
        davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, simon.horman@...igine.com
Subject: Re: [PATCH v2] net: xfrm: Fix xfrm_address_filter OOB read

> + if (filter->splen >= (sizeof(xfrm_address_t) << 3) ||
> + 	filter->dplen >= (sizeof(xfrm_address_t) << 3)) {

Please multiply by 8 if you want to multiply by 8.

Should it be "splen > 8 * sizeof()" ?