linux-hardening - Re: [PATCH v2] scsi: zfcp: Replace strlcpy() with strscpy()

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Date: Wed, 13 Dec 2023 23:29:14 -0500
From: "Martin K. Petersen" <martin.petersen@...cle.com>
To: Kees Cook <keescook@...omium.org>
Cc: "Martin K . Petersen" <martin.petersen@...cle.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        Steffen Maier <maier@...ux.ibm.com>,
        Benjamin Block <bblock@...ux.ibm.com>,
        Heiko Carstens <hca@...ux.ibm.com>, Vasily Gorbik <gor@...ux.ibm.com>,
        Alexander Gordeev <agordeev@...ux.ibm.com>,
        Christian Borntraeger <borntraeger@...ux.ibm.com>,
        Sven Schnelle <svens@...ux.ibm.com>,
        Azeem Shaikh <azeemshaikh38@...il.com>, linux-s390@...r.kernel.org,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-hardening@...r.kernel.org
Subject: Re: [PATCH v2] scsi: zfcp: Replace strlcpy() with strscpy()

On Thu, 30 Nov 2023 12:41:00 -0800, Kees Cook wrote:

> 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].
> Additionally, it returns the size of the source string, not the
> resulting size of the destination string. In an effort to remove strlcpy()
> completely[2], replace strlcpy() here with strscpy().
> 
> [...]

Applied to 6.8/scsi-queue, thanks!

[1/1] scsi: zfcp: Replace strlcpy() with strscpy()
      https://git.kernel.org/mkp/scsi/c/0d224b1088af

-- 
Martin K. Petersen	Oracle Linux Engineering