[PATCH v1 01/16] iommufd/viommu: Add IOMMUFD_OBJ_VIOMMU and IOMMU_VIOMMU_ALLOC ioctl
Jason Gunthorpe
jgg at nvidia.com
Thu Aug 15 16:37:43 PDT 2024
On Thu, Aug 15, 2024 at 11:20:35AM -0700, Nicolin Chen wrote:
> > I don't have an easy solution in mind though later as surely we will
> > need this when we start to create more iommu bound objects. I'm pretty
> > sure syzkaller would eventually find such a UAF using the iommufd
> > selftest framework.
>
> Would adding a user count in struct iommu_device help?
Yeah, maybe something like that. It is a real corner case though.
Jason
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