CVE-2026-74420
drm/gpusvm: Reject VMAs with VM_IO or VM_PFNMAP when creating SVM ranges
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: drm/gpusvm: Reject VMAs with VM_IO or VM_PFNMAP when creating SVM ranges VMAs marked with VM_IO or VM_PFNMAP are not backed by struct page objects, which GPUSVM requires in order to operate correctly. In particular, get_pages() relies on hmm_range_fault() to resolve struct pages for the target range. Attempting to create an SVM range on such VMAs results in repeated get_pages() failures and can lead to an infinite loop inside a driver’s page‑fault handler. Prevent this by rejecting ranges on VM_IO or VM_PFNMAP VMAs and returning -EIO.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 15, 2026 |
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Affected Versions
Linux / Linux
99624bdff8670795b678eafa6509aaad3a5c0175 < 353f26c74660bcbd8d82cd76622748e14a5a5db3 99624bdff8670795b678eafa6509aaad3a5c0175 < 63f443384979563f16f70420f4fa85bba31238ca 99624bdff8670795b678eafa6509aaad3a5c0175 < b82a225e57a334335a21462b75ee2223bc6efe6d
Linux / Linux
6.15