CVE-2026-64290

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> iommufd: Break the loop on failure in iommufd_fault_fops_read()<br /> <br /> On a copy_to_user() failure inside the inner list_for_each_entry, only the<br /> inner loop breaks; the outer while re-fetches the just-restored fault group<br /> and retries the failing copy_to_user() forever, spinning the reader at 100%<br /> CPU with fault-&gt;mutex held.<br /> <br /> Check rc after the inner loop and break the outer while as well.