CVE-2026-74420

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> drm/gpusvm: Reject VMAs with VM_IO or VM_PFNMAP when creating SVM ranges<br /> <br /> VMAs marked with VM_IO or VM_PFNMAP are not backed by struct page<br /> objects, which GPUSVM requires in order to operate correctly. In<br /> particular, get_pages() relies on hmm_range_fault() to resolve struct<br /> pages for the target range.<br /> <br /> Attempting to create an SVM range on such VMAs results in repeated<br /> get_pages() failures and can lead to an infinite loop inside a driver’s<br /> page‑fault handler. Prevent this by rejecting ranges on VM_IO or<br /> VM_PFNMAP VMAs and returning -EIO.