CVE-2025-38274 (GCVE-0-2025-38274)
Vulnerability from cvelistv5
Published
2025-07-10 07:41
Modified
2025-07-28 04:17
Severity ?
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
Impacted products
Vendor Product Version
Linux Linux Version: ccbc1c302115d8125d6a96296ba52702c6de0ade
Version: ccbc1c302115d8125d6a96296ba52702c6de0ade
Version: ccbc1c302115d8125d6a96296ba52702c6de0ade
Version: ccbc1c302115d8125d6a96296ba52702c6de0ade
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "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",
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "6.6"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.94",
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            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.34",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.3",
              "versionType": "semver"
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              "status": "unaffected",
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        }
      ],
      "cpeApplicability": [
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-28T04:17:02.209Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e69e2cfd8b38d9463a250e153ef4963a604d61e9"
        },
        {
          "url": "https://git.kernel.org/stable/c/8b2230ac7ff0aeb2441132df638a82ab124f8624"
        },
        {
          "url": "https://git.kernel.org/stable/c/eb4c74eaa6e2d15f3bbd32941c9d2a25b29a718d"
        },
        {
          "url": "https://git.kernel.org/stable/c/6ebf1982038af12f3588417e4fd0417d2551da28"
        }
      ],
      "title": "fpga: fix potential null pointer deref in fpga_mgr_test_img_load_sgt()",
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38274",
    "datePublished": "2025-07-10T07:41:55.041Z",
    "dateReserved": "2025-04-16T04:51:23.998Z",
    "dateUpdated": "2025-07-28T04:17:02.209Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38274\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-07-10T08:15:25.650\",\"lastModified\":\"2025-07-10T13:17:30.017\",\"vulnStatus\":\"Awaiting Analysis\",\"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().\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/6ebf1982038af12f3588417e4fd0417d2551da28\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8b2230ac7ff0aeb2441132df638a82ab124f8624\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e69e2cfd8b38d9463a250e153ef4963a604d61e9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/eb4c74eaa6e2d15f3bbd32941c9d2a25b29a718d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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