linux-kernel - Re: [PATCH] net: sunrpc: Fix an off by one in root_nfs

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Message-ID: <20231026145720.GB225043@kernel.org>
Date:   Thu, 26 Oct 2023 15:57:20 +0100
From:   Simon Horman <horms@...nel.org>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>
Cc:     chuck.lever@...cle.com, jlayton@...nel.org, neilb@...e.de,
        kolga@...app.com, Dai.Ngo@...cle.com, tom@...pey.com,
        trond.myklebust@...merspace.com, anna@...nel.org,
        davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, linux-nfs@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] net: sunrpc: Fix an off by one in root_nfs_cat()

On Tue, Oct 24, 2023 at 11:55:30PM +0200, Christophe JAILLET wrote:
> The intent is to check if the strings' are truncated or not. So, >= should
> be used instead of >, because strlcat() and snprintf() return the length of
> the output, excluding the trailing NULL.
> 
> Fixes: a02d69261134 ("SUNRPC: Provide functions for managing universal addresses")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>

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