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Date:   Thu, 09 Nov 2017 14:26:14 +0100
From:   Oliver Neukum <>
To:     Andrey Konovalov <>,
        Alan Stern <>
        Felipe Balbi <>,
        Greg KH <>,
        Takashi Iwai <>,
        LKML <>,
        USB list <>
Subject: Re: WARNING in usb_submit_urb

Am Donnerstag, den 09.11.2017, 13:19 +0100 schrieb Andrey Konovalov:
> This isn't the "BOGUS urb xfer" warning, this is "BOGUS urb flags". So
> 2 means the URB_ISO_ASAP flag, which is passed in urb->transfer_flags
> but not allowed. And as far as I understand, it gets set because uurb
> (which is passed from user space) has USBDEVFS_URB_ISO_ASAP flag set
> when passed to proc_do_submiturb().


yes we should filter better.
Could you test?


View attachment "0001-USB-usbfs-Filter-flags-passed-in-from-user-space.patch" of type "text/x-patch" (1277 bytes)

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