linux-kernel - Re: [PATCH] usb: gadget: aspeed: fix buffer overflow

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Message-ID: <2023062146-stony-lair-b6a3@gregkh>
Date:   Wed, 21 Jun 2023 17:59:55 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Lei Yu <yulei.sh@...edance.com>
Cc:     Felipe Balbi <balbi@...nel.org>, Joel Stanley <joel@....id.au>,
        Andrew Jeffery <andrew@...id.au>,
        Henry Tian <tianxiaofeng@...edance.com>,
        Jakob Koschel <jakobkoschel@...il.com>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-aspeed@...ts.ozlabs.org" <linux-aspeed@...ts.ozlabs.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Ryan Chen <ryan_chen@...eedtech.com>,
        Neal Liu <neal_liu@...eedtech.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>
Subject: Re: [PATCH] usb: gadget: aspeed: fix buffer overflow

On Wed, Jun 21, 2023 at 08:02:14PM +0800, Lei Yu wrote:
> On Wed, Dec 21, 2022 at 10:26 AM Lei Yu <yulei.sh@...edance.com> wrote:
> >
> > On Wed, Dec 21, 2022 at 10:17 AM Neal Liu <neal_liu@...eedtech.com> wrote:
> > > > > > > > Using rndis is able to set MTU to 2000, and the issue can be
> > > > reproduced.
> > > >
> > > > USB ecm is also tested and it is possible to set MTU to 2000, and could
> > > > reproduce the issue.
> > > > So I think this patch is needed anyway.
> > > >
> > > > @Neal Liu Could you kindly help to verify the USB ECM case?
> > >
> > > How to set MTU to 2000 on USB ECM case? I remember last time I cannot set by using "ifconfig ..."
> > > Regardless ECM or RNDIS, I agree this patch is still needed.
> >
> > You were able to set MTU to 2000 for RNDIS but not for NCM.
> > @Greg Kroah-Hartman indicated that RNDIS should not be used anymore.
> > So I tested ECM and verified it could set MTU 2000 and the issue could
> > be reproduced.
> 
> This patch fixes the kernel oops in the aspeed-vhub driver for both
> USB ECM and RNDIS.
> It now has an Acked-by from benh and Reviewed-by from neal_liu
> 
> Should we merge this patch?

Can you please resend it?

thanks,

greg k-h