CVE-2026-74420drm/gpusvm: Reject VMAs with VM_IO or VM_PFNMAP when creating SVM ranges
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 99624bdff8670795b678eafa6509aaad3a5c0175 builds before 353f26c74660bcbd8d82cd76622748e14a5a5db3; 99624bdff8670795b678eafa6509aaad3a5c0175 builds before 63f443384979563f16f70420f4fa85bba31238ca; from 99624bdff8670795b678eafa6509aaad3a5c0175 before b82a225e57a334335a21462b75ee2223bc6efe6d | CNA record |
References
- https://git.kernel.org/stable/c/353f26c74660bcbd8d82cd76622748e14a5a5db3
- https://git.kernel.org/stable/c/63f443384979563f16f70420f4fa85bba31238ca
- https://git.kernel.org/stable/c/b82a225e57a334335a21462b75ee2223bc6efe6d
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.