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Re: [Qemu-devel] [PATCH] usb: xhci: fix info leak when writing event to
From: |
Li Qiang |
Subject: |
Re: [Qemu-devel] [PATCH] usb: xhci: fix info leak when writing event to the guest |
Date: |
Wed, 14 Jun 2017 14:36:35 +0800 |
2017-06-14 14:30 GMT+08:00 Gerd Hoffmann <address@hidden>:
> On Tue, 2017-06-13 at 20:39 -0700, Li Qiang wrote:
> > From: Li Qiang <address@hidden>
> >
> > In 'xhci_write_event' function, the 'ev_trb' is not full initialized.
> > This will lead an info leak issue. This patch avoid this.
>
> I don't think so. Note that only the first 16 bytes (TRB_SIZE) and not
> the whole struct is copied to guest memory.
>
>
Agree. Not notice the 'TRB_SIZE'.
Thanks.
> cheers,
> Gerd
>
>