[dpdk-dev] [PATCH 2/2] uio: new driver to support PCI MSI-X
Michael S. Tsirkin
mst at redhat.com
Tue Oct 6 17:00:31 CEST 2015
On Tue, Oct 06, 2015 at 05:49:21PM +0300, Vlad Zolotarov wrote:
> >and read/write the config space.
> >This means that a single userspace bug is enough to corrupt kernel
> >memory.
>
> Could u, pls., provide and example of this simple bug? Because it's
> absolutely not obvious...
Stick a value that happens to match a kernel address in Msg Addr field
in an unmasked MSI-X entry.
--
MST
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