On Mon, Dec 17, 2012 at 5:30 PM, Ming Lei <ming....@canonical.com> wrote: > On Sat, Dec 15, 2012 at 6:51 AM, Kees Cook <keesc...@chromium.org> wrote: >> Some devices have configurable firmware locations. If these configuration >> mechanisms are exposed to unprivileged userspace, it may be possible to > > I an wondering how the unprivileged userspace can write the firmware sysfs > to trigger loading firmware?
If a daemon were to, for example, make firmware selectable by the user (which under certain situations is possible in Chrome OS), it seems wasteful require these userspace tools/interfaces to each perform filtering, so I figured it would be trivial to put in here instead to avoid possible future vulnerabilities. -Kees -- Kees Cook Chrome OS Security -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
