CVE-2025-40336 (GCVE-0-2025-40336)
Vulnerability from cvelistv5
Published
2025-12-09 04:09
Modified
2025-12-09 04:09
Severity ?
VLAI Severity ?
EPSS score ?
Summary
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)
References
Impacted products
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],
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"vendor": "Linux",
"versions": [
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},
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"version": "6.18",
"versionType": "original_commit_for_fix"
}
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}
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},
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"url": "https://git.kernel.org/stable/c/c50729c68aaf93611c855752b00e49ce1fdd1558"
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"title": "drm/gpusvm: fix hmm_pfn_to_map_order() usage",
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"cveId": "CVE-2025-40336",
"datePublished": "2025-12-09T04:09:52.845Z",
"dateReserved": "2025-04-16T07:20:57.186Z",
"dateUpdated": "2025-12-09T04:09:52.845Z",
"state": "PUBLISHED"
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}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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