CVE-2025-40336
drm/gpusvm: fix hmm_pfn_to_map_order() usage
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: drm/gpusvm: fix hmm_pfn_to_map_order() usage Handle the case where the hmm range partially covers a huge page (like 2M), otherwise we can potentially end up doing something nasty like mapping memory which is outside the range, and maybe not even mapped by the mm. Fix is based on the xe userptr code, which in a future patch will directly use gpusvm, so needs alignment here. v2: - Add kernel-doc (Matt B) - s/fls/ilog2/ (Thomas)
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Dec 9, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
99624bdff8670795b678eafa6509aaad3a5c0175 < 08e9fd78ba1b9e95141181c69cc51795c9888157 99624bdff8670795b678eafa6509aaad3a5c0175 < c50729c68aaf93611c855752b00e49ce1fdd1558
Linux / Linux
6.15