Vulnerability-Lookup

FKIE_CVE-2025-71122

Vulnerability from fkie_nvd - Published: 2026-01-14 15:16 - Updated: 2026-01-14 16:25

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: iommufd/selftest: Check for overflow in IOMMU_TEST_OP_ADD_RESERVED syzkaller found it could overflow math in the test infrastructure and cause a WARN_ON by corrupting the reserved interval tree. This only effects test kernels with CONFIG_IOMMUFD_TEST. Validate the user input length in the test ioctl.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4cc829d61f10c20523fd4085c1546e741a792a97
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b166b8e0a381429fefd9180e67fbc834b3cee82f
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e6a973af11135439de32ece3b9cbe3bfc043bea8
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e6c122cffcbb2e84d321ec8ba0e38ce8e7c10925

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommufd/selftest: Check for overflow in IOMMU_TEST_OP_ADD_RESERVED\n\nsyzkaller found it could overflow math in the test infrastructure and\ncause a WARN_ON by corrupting the reserved interval tree. This only\neffects test kernels with CONFIG_IOMMUFD_TEST.\n\nValidate the user input length in the test ioctl."
    }
  ],
  "id": "CVE-2025-71122",
  "lastModified": "2026-01-14T16:25:12.057",
  "metrics": {},
  "published": "2026-01-14T15:16:01.900",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4cc829d61f10c20523fd4085c1546e741a792a97"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b166b8e0a381429fefd9180e67fbc834b3cee82f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e6a973af11135439de32ece3b9cbe3bfc043bea8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e6c122cffcbb2e84d321ec8ba0e38ce8e7c10925"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2025-71122 (GCVE-0-2025-71122)

Vulnerability from cvelistv5 – Published: 2026-01-14 15:06 – Updated: 2026-01-14 15:06

Title

iommufd/selftest: Check for overflow in IOMMU_TEST_OP_ADD_RESERVED

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/4cc829d61f10c2052…
	https://git.kernel.org/stable/c/e6c122cffcbb2e84d…
	https://git.kernel.org/stable/c/b166b8e0a381429fe…
	https://git.kernel.org/stable/c/e6a973af11135439d…

Impacted products

Vendor

Product

Version

Linux

Affected: f4b20bb34c83dceade5470288f48f94ce3598ada , < 4cc829d61f10c20523fd4085c1546e741a792a97 (git)
Affected: f4b20bb34c83dceade5470288f48f94ce3598ada , < e6c122cffcbb2e84d321ec8ba0e38ce8e7c10925 (git)
Affected: f4b20bb34c83dceade5470288f48f94ce3598ada , < b166b8e0a381429fefd9180e67fbc834b3cee82f (git)
Affected: f4b20bb34c83dceade5470288f48f94ce3598ada , < e6a973af11135439de32ece3b9cbe3bfc043bea8 (git)

Linux

Affected: 6.2
Unaffected: 0 , < 6.2 (semver)
Unaffected: 6.6.120 , ≤ 6.6.* (semver)
Unaffected: 6.12.64 , ≤ 6.12.* (semver)
Unaffected: 6.18.3 , ≤ 6.18.* (semver)
Unaffected: 6.19-rc2 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/iommu/iommufd/selftest.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4cc829d61f10c20523fd4085c1546e741a792a97",
              "status": "affected",
              "version": "f4b20bb34c83dceade5470288f48f94ce3598ada",
              "versionType": "git"
            },
            {
              "lessThan": "e6c122cffcbb2e84d321ec8ba0e38ce8e7c10925",
              "status": "affected",
              "version": "f4b20bb34c83dceade5470288f48f94ce3598ada",
              "versionType": "git"
            },
            {
              "lessThan": "b166b8e0a381429fefd9180e67fbc834b3cee82f",
              "status": "affected",
              "version": "f4b20bb34c83dceade5470288f48f94ce3598ada",
              "versionType": "git"
            },
            {
              "lessThan": "e6a973af11135439de32ece3b9cbe3bfc043bea8",
              "status": "affected",
              "version": "f4b20bb34c83dceade5470288f48f94ce3598ada",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/iommu/iommufd/selftest.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.2"
            },
            {
              "lessThan": "6.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.120",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.64",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19-rc2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.120",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.64",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.3",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19-rc2",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommufd/selftest: Check for overflow in IOMMU_TEST_OP_ADD_RESERVED\n\nsyzkaller found it could overflow math in the test infrastructure and\ncause a WARN_ON by corrupting the reserved interval tree. This only\neffects test kernels with CONFIG_IOMMUFD_TEST.\n\nValidate the user input length in the test ioctl."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-14T15:06:08.556Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/4cc829d61f10c20523fd4085c1546e741a792a97"
        },
        {
          "url": "https://git.kernel.org/stable/c/e6c122cffcbb2e84d321ec8ba0e38ce8e7c10925"
        },
        {
          "url": "https://git.kernel.org/stable/c/b166b8e0a381429fefd9180e67fbc834b3cee82f"
        },
        {
          "url": "https://git.kernel.org/stable/c/e6a973af11135439de32ece3b9cbe3bfc043bea8"
        }
      ],
      "title": "iommufd/selftest: Check for overflow in IOMMU_TEST_OP_ADD_RESERVED",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-71122",
    "datePublished": "2026-01-14T15:06:08.556Z",
    "dateReserved": "2026-01-13T15:30:19.654Z",
    "dateUpdated": "2026-01-14T15:06:08.556Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2025-71122

CVE-2025-71122 (GCVE-0-2025-71122)

Tags

Sightings

Nomenclature