Vulnerability details
CVE-2025-40336
Linux Linux
drm/gpusvm: fix hmm_pfn_to_map_order() usage
CVSS 3.1
8.8High
Official description
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)
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.8High | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 6.15 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 99624bdff8670795b678eafa6509aaad3a5c0175 ≤ v < 08e9fd78ba1b9e95141181c69cc51795c9888157 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 99624bdff8670795b678eafa6509aaad3a5c0175 ≤ v < c50729c68aaf93611c855752b00e49ce1fdd1558 | CVEProject cvelistV5 (CNA) |
References and advisories
2
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Details
- Published
- 2025-12-09
- Last updated
- 2026-10-16
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.17%
Probability of exploitation in 30 days
6.4%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- —