linux-hardening - Re: [PATCH v3] scsi: target: Replace strlcpy with strscpy

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Message-ID: <yq17cp5kkpj.fsf@ca-mkp.ca.oracle.com>
Date:   Tue, 05 Sep 2023 05:56:03 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Azeem Shaikh <azeemshaikh38@...il.com>
Cc:     "Martin K. Petersen" <martin.petersen@...cle.com>,
        Kees Cook <keescook@...omium.org>,
        linux-hardening@...r.kernel.org, linux-scsi@...r.kernel.org,
        target-devel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] scsi: target: Replace strlcpy with strscpy


Azeem,

> strlcpy() reads the entire source buffer first. This read may exceed
> the destination size limit. This is both inefficient and can lead to
> linear read overflows if a source string is not NUL-terminated [1]. In
> an effort to remove strlcpy() completely [2], replace strlcpy() here
> with strscpy().

Applied to 6.6/scsi-staging, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering