linux-kernel - Re: [PATCH] usbmon binary format reader loses synchronization

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Message-Id: <20081113144636.f1ac7cc0.zaitcev@redhat.com>
Date:	Thu, 13 Nov 2008 14:46:36 -0700
From:	Pete Zaitcev <zaitcev@...hat.com>
To:	Ingo van Lil <inguin@....de>
Cc:	linux-kernel@...r.kernel.org, zaitcev@...hat.com
Subject: Re: [PATCH] usbmon binary format reader loses synchronization

On Thu, 13 Nov 2008 13:59:45 +0100, Ingo van Lil <inguin@....de> wrote:

> +++ b/drivers/usb/mon/mon_bin.c	2008-11-13 11:44:03.000000000 +0100
> @@ -681,7 +681,7 @@
>  	}
>  
>  	if (rp->b_read >= sizeof(struct mon_bin_hdr)) {
> -		step_len = min(nbytes, (size_t)ep->len_cap);
> +		step_len = min(nbytes, sizeof(struct mon_bin_hdr) + (size_t)ep->len_cap - rp->b_read);
>  		offset = rp->b_out + PKT_SIZE;

I cannot tell right away if this is the best fix, but I'll look
into this. Thanks a lot!

-- Pete
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