{"cve":"CVE-2025-40336","nvd":{"published":"2025-12-09T16:17:43.820","modified":"2026-10-15T22:19:08.797","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/gpusvm: fix hmm_pfn_to_map_order() usage\n\nHandle the case where the hmm range partially covers a huge page (like\n2M), otherwise we can potentially end up doing something nasty like\nmapping memory which is outside the range, and maybe not even mapped by\nthe mm. Fix is based on the xe userptr code, which in a future patch\nwill directly use gpusvm, so needs alignment here.\n\nv2:\n  - Add kernel-doc (Matt B)\n  - s/fls/ilog2/ (Thomas)","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","score":8.8},"cwes":[],"references":["https://git.kernel.org/stable/c/08e9fd78ba1b9e95141181c69cc51795c9888157","https://git.kernel.org/stable/c/c50729c68aaf93611c855752b00e49ce1fdd1558"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:16:40.427100871+00:00"},"epss":{"cve":"CVE-2025-40336","score":0.0017,"percentile":0.06361,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}