From: Tyrel Datwyler <tyreld@linux.ibm.com>
To: Azeem Shaikh <azeemshaikh38@gmail.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>,
linux-scsi@vger.kernel.org,
"James E.J. Bottomley" <jejb@linux.ibm.com>,
linux-kernel@vger.kernel.org, Nicholas Piggin <npiggin@gmail.com>,
linuxppc-dev@lists.ozlabs.org, linux-hardening@vger.kernel.org
Subject: Re: [PATCH] scsi: ibmvscsi: Replace all non-returning strlcpy with strscpy
Date: Wed, 17 May 2023 14:01:54 -0700 [thread overview]
Message-ID: <f99b3630-3b77-2dc3-6aa5-87b6cdedf493@linux.ibm.com> (raw)
In-Reply-To: <20230517143409.1520298-1-azeemshaikh38@gmail.com>
On 5/17/23 07:34, Azeem Shaikh 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].
> In an effort to remove strlcpy() completely [2], replace
> strlcpy() here with strscpy().
> No return values were used, so direct replacement is safe.
>
> [1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy
> [2] https://github.com/KSPP/linux/issues/89
>
> Signed-off-by: Azeem Shaikh <azeemshaikh38@gmail.com>
Acked-by: Tyrel Datwyler <tyreld@linux.ibm.com>
next prev parent reply other threads:[~2023-05-17 21:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-17 14:34 [PATCH] scsi: ibmvscsi: Replace all non-returning strlcpy with strscpy Azeem Shaikh
2023-05-17 19:14 ` Kees Cook
2023-05-17 21:01 ` Tyrel Datwyler [this message]
2023-05-22 19:39 ` Kees Cook
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