"Michael S. Tsirkin" <m...@redhat.com> writes: > On Mon, Sep 17, 2012 at 01:57:17PM +0930, Rusty Russell wrote: >> "Michael S. Tsirkin" <m...@redhat.com> writes: >> >> > Because of a sanity check in virtio_dev_remove, a buggy device can crash >> > kernel. And in case of rproc it's userspace so it's not a good idea. >> > We are unloading a driver so how bad can it be? >> > Be less aggressive in handling this error: if it's a driver bug, >> > warning once should be enough. >> > >> > Signed-off-by: Michael S. Tsirkin <m...@redhat.com> >> > >> > -- >> > >> > 3.6 material? >> >> I have already applied, this, but it's not for stable, since it's a >> "theoretical bugfix". That check has been in there forever and noone >> AFAIK has actually struck it. >> >> Cheers, >> Rusty. > > Yes but can't malicious userspace trigger this with remoteproc? If yes > it's not a question of whether anyone has struck it since people don't > normally run malicious userspace :)
I think that malicious userspace is already priveleged, isn't it? Cheers, Rusty. -- 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/
