From: "Nicholas A. Bellinger" <nab@linux-iscsi.org>
To: kernel-janitors@vger.kernel.org
Subject: Re: [patch 1/2] target: usb-gadget: silently truncating the last character
Date: Wed, 18 Apr 2012 07:12:38 +0000 [thread overview]
Message-ID: <1334733158.15333.1.camel@haakon2.linux-iscsi.org> (raw)
In-Reply-To: <20120417063154.GD26756@elgon.mountain>
On Tue, 2012-04-17 at 09:31 +0300, Dan Carpenter wrote:
> strlen() doesn't count the NULL character, so this test is off by one.
> The result is that sometimes it can silently chop off the last
> character of the name.
>
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
>
> diff --git a/drivers/target/usb-gadget/usb_gadget.c b/drivers/target/usb-gadget/usb_gadget.c
> index f5e7531..ba62bef 100644
> --- a/drivers/target/usb-gadget/usb_gadget.c
> +++ b/drivers/target/usb-gadget/usb_gadget.c
> @@ -1830,7 +1830,7 @@ static ssize_t tcm_usbg_tpg_store_nexus(
> ret = tcm_usbg_drop_nexus(tpg);
> return (!ret) ? count : ret;
> }
> - if (strlen(page) > USBG_NAMELEN) {
> + if (strlen(page) >= USBG_NAMELEN) {
> pr_err("Emulated NAA Sas Address: %s, exceeds"
> " max: %d\n", page, USBG_NAMELEN);
> return -EINVAL;
> --
Applied to lio-core. Thanks!
--nab
prev parent reply other threads:[~2012-04-18 7:12 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-17 6:31 [patch 1/2] target: usb-gadget: silently truncating the last character Dan Carpenter
2012-04-18 7:12 ` Nicholas A. Bellinger [this message]
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