CVE-2023-54034 (GCVE-0-2023-54034)

Vulnerability from cvelistv5 – Published: 2025-12-24 10:56 – Updated: 2025-12-24 10:56
VLAI?
Title
iommufd: Make sure to zero vfio_iommu_type1_info before copying to user
Summary
In the Linux kernel, the following vulnerability has been resolved: iommufd: Make sure to zero vfio_iommu_type1_info before copying to user Missed a zero initialization here. Most of the struct is filled with a copy_from_user(), however minsz for that copy is smaller than the actual struct by 8 bytes, thus we don't fill the padding.
Severity ?
No CVSS data available.
Assigner
Impacted products
Vendor Product Version
Linux Linux Affected: d624d6652a65ad4f47a58b8651a1ec1163bb81d3 , < 7adcec686e4d699c169d34c722132b2bce5232cb (git)
Affected: d624d6652a65ad4f47a58b8651a1ec1163bb81d3 , < b3551ead616318ea155558cdbe7e91495b8d9b33 (git)
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    Linux Linux Affected: 6.2
Unaffected: 0 , < 6.2 (semver)
Unaffected: 6.2.3 , ≤ 6.2.* (semver)
Unaffected: 6.3 , ≤ * (original_commit_for_fix)
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Show details on NVD website

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          "programFiles": [
            "drivers/iommu/iommufd/vfio_compat.c"
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      "providerMetadata": {
        "dateUpdated": "2025-12-24T10:56:01.509Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2023-54034",
    "datePublished": "2025-12-24T10:56:01.509Z",
    "dateReserved": "2025-12-24T10:53:46.180Z",
    "dateUpdated": "2025-12-24T10:56:01.509Z",
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  }
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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