Description
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.
Metrics
No CVSS score has been published yet.
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 99624bdff8670795b678eafa6509aaad3a5c0175, < 353f26c74660bcbd8d82cd76622748e14a5a5db3; >= 99624bdff8670795b678eafa6509aaad3a5c0175, < 63f443384979563f16f70420f4fa85bba31238ca; >= 99624bdff8670795b678eafa6509aaad3a5c0175, < b82a225e57a334335a21462b75ee2223bc6efe6d |
| Linux | Linux | 6.15 |
References
Timeline
- Published
- Aug 15, 2026
- Last modified
- Aug 17, 2026
- NVD status
- Received