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FKIE_CVE-2025-38274

Vulnerability from fkie_nvd - Published: 2025-07-10 08:15 - Updated: 2026-06-17 09:16
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: fpga: fix potential null pointer deref in fpga_mgr_test_img_load_sgt() fpga_mgr_test_img_load_sgt() allocates memory for sgt using kunit_kzalloc() however it does not check if the allocation failed. It then passes sgt to sg_alloc_table(), which passes it to __sg_alloc_table(). This function calls memset() on sgt in an attempt to zero it out. If the allocation fails then sgt will be NULL and the memset will trigger a NULL pointer dereference. Fix this by checking the allocation with KUNIT_ASSERT_NOT_ERR_OR_NULL().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6ebf1982038af12f3588417e4fd0417d2551da28Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8b2230ac7ff0aeb2441132df638a82ab124f8624Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e69e2cfd8b38d9463a250e153ef4963a604d61e9Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/eb4c74eaa6e2d15f3bbd32941c9d2a25b29a718dPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/fpga/tests/fpga-mgr-test.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e69e2cfd8b38d9463a250e153ef4963a604d61e9",
              "status": "affected",
              "version": "ccbc1c302115d8125d6a96296ba52702c6de0ade",
              "versionType": "git"
            },
            {
              "lessThan": "8b2230ac7ff0aeb2441132df638a82ab124f8624",
              "status": "affected",
              "version": "ccbc1c302115d8125d6a96296ba52702c6de0ade",
              "versionType": "git"
            },
            {
              "lessThan": "eb4c74eaa6e2d15f3bbd32941c9d2a25b29a718d",
              "status": "affected",
              "version": "ccbc1c302115d8125d6a96296ba52702c6de0ade",
              "versionType": "git"
            },
            {
              "lessThan": "6ebf1982038af12f3588417e4fd0417d2551da28",
              "status": "affected",
              "version": "ccbc1c302115d8125d6a96296ba52702c6de0ade",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/fpga/tests/fpga-mgr-test.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.6"
            },
            {
              "lessThan": "6.6",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.94",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.34",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C913EFAA-0F49-4213-AE33-7741AD492BD3",
              "versionEndExcluding": "6.6.94",
              "versionStartIncluding": "6.6",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4FFA54AA-CDFE-4591-BD07-72813D0948F4",
              "versionEndExcluding": "6.12.34",
              "versionStartIncluding": "6.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0541C761-BD5E-4C1A-8432-83B375D7EB92",
              "versionEndExcluding": "6.15.3",
              "versionStartIncluding": "6.13",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfpga: fix potential null pointer deref in fpga_mgr_test_img_load_sgt()\n\nfpga_mgr_test_img_load_sgt() allocates memory for sgt using\nkunit_kzalloc() however it does not check if the allocation failed.\nIt then passes sgt to sg_alloc_table(), which passes it to\n__sg_alloc_table(). This function calls memset() on sgt in an attempt to\nzero it out. If the allocation fails then sgt will be NULL and the\nmemset will trigger a NULL pointer dereference.\n\nFix this by checking the allocation with KUNIT_ASSERT_NOT_ERR_OR_NULL()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: fpga: se corrige una posible desreferencia de puntero nulo en fpga_mgr_test_img_load_sgt(). fpga_mgr_test_img_load_sgt() asigna memoria para sgt mediante kunit_kzalloc(), pero no comprueba si la asignaci\u00f3n ha fallado. A continuaci\u00f3n, pasa sgt a sg_alloc_table(), que a su vez la pasa a __sg_alloc_table(). Esta funci\u00f3n llama a memset() en sgt para intentar ponerlo a cero. Si la asignaci\u00f3n falla, sgt ser\u00e1 nulo y memset activar\u00e1 una desreferencia de puntero nulo. Solucione esto comprobando la asignaci\u00f3n con KUNIT_ASSERT_NOT_ERR_OR_NULL()."
    }
  ],
  "id": "CVE-2025-38274",
  "lastModified": "2026-06-17T09:16:31.730",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-07-10T08:15:25.650",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/6ebf1982038af12f3588417e4fd0417d2551da28"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/8b2230ac7ff0aeb2441132df638a82ab124f8624"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/e69e2cfd8b38d9463a250e153ef4963a604d61e9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/eb4c74eaa6e2d15f3bbd32941c9d2a25b29a718d"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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