linux-kernel - Re: [PATCH] scsi: qedf: Avoid reading past end of buffer

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Message-ID: <yq1a86msrwz.fsf@oracle.com>
Date:   Mon, 08 May 2017 22:08:44 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Kees Cook <keescook@...omium.org>
Cc:     linux-scsi@...r.kernel.org, QLogic-Storage-Upstream@...ium.com,
        "James E.J. Bottomley" <jejb@...ux.vnet.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        linux-kernel@...r.kernel.org, Daniel Micay <danielmicay@...il.com>
Subject: Re: [PATCH] scsi: qedf: Avoid reading past end of buffer


Kees,

> Using memcpy() from a string that is shorter than the length copied
> means the destination buffer is being filled with arbitrary data from
> the kernel rodata segment. Instead, use strncpy() which will fill the
> trailing bytes with zeros.

Applied to 4.12/scsi-fixes, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering