CVE-2025-38456 (GCVE-0-2025-38456)
Vulnerability from cvelistv5
Published
2025-07-25 15:27
Modified
2025-07-28 04:22
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ipmi:msghandler: Fix potential memory corruption in ipmi_create_user() The "intf" list iterator is an invalid pointer if the correct "intf->intf_num" is not found. Calling atomic_dec(&intf->nr_users) on and invalid pointer will lead to memory corruption. We don't really need to call atomic_dec() if we haven't called atomic_add_return() so update the if (intf->in_shutdown) path as well.
References
Impacted products
Vendor Product Version
Linux Linux Version: 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82
Version: 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82
Version: 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82
Version: 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82
Version: 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/char/ipmi/ipmi_msghandler.c"
          ],
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "5.19"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "version": "6.12.39",
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              "status": "unaffected",
              "version": "6.15.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "negate": false,
              "operator": "OR"
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipmi:msghandler: Fix potential memory corruption in ipmi_create_user()\n\nThe \"intf\" list iterator is an invalid pointer if the correct\n\"intf-\u003eintf_num\" is not found.  Calling atomic_dec(\u0026intf-\u003enr_users) on\nand invalid pointer will lead to memory corruption.\n\nWe don\u0027t really need to call atomic_dec() if we haven\u0027t called\natomic_add_return() so update the if (intf-\u003ein_shutdown) path as well."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-28T04:22:49.939Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/cbc1670297f675854e982d23c8583900ff0cc67a"
        },
        {
          "url": "https://git.kernel.org/stable/c/e2d5c005dfc96fe857676d1d8ac46b29275cb89b"
        },
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          "url": "https://git.kernel.org/stable/c/9e0d33e75c1604c3fad5586ad4dfa3b2695a3950"
        },
        {
          "url": "https://git.kernel.org/stable/c/7c1a6ddb99858e7d68961f74ae27caeeeca67b6a"
        },
        {
          "url": "https://git.kernel.org/stable/c/fa332f5dc6fc662ad7d3200048772c96b861cf6b"
        }
      ],
      "title": "ipmi:msghandler: Fix potential memory corruption in ipmi_create_user()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38456",
    "datePublished": "2025-07-25T15:27:35.559Z",
    "dateReserved": "2025-04-16T04:51:24.019Z",
    "dateUpdated": "2025-07-28T04:22:49.939Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38456\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-07-25T16:15:31.283\",\"lastModified\":\"2025-07-29T14:14:55.157\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nipmi:msghandler: Fix potential memory corruption in ipmi_create_user()\\n\\nThe \\\"intf\\\" list iterator is an invalid pointer if the correct\\n\\\"intf-\u003eintf_num\\\" is not found.  Calling atomic_dec(\u0026intf-\u003enr_users) on\\nand invalid pointer will lead to memory corruption.\\n\\nWe don\u0027t really need to call atomic_dec() if we haven\u0027t called\\natomic_add_return() so update the if (intf-\u003ein_shutdown) path as well.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ipmi:msghandler: Se corrige una posible corrupci\u00f3n de memoria en ipmi_create_user(). El iterador de lista \\\"intf\\\" es un puntero no v\u00e1lido si no se encuentra el valor correcto \\\"intf-\u0026gt;intf_num\\\". Llamar a atomic_dec(\u0026amp;intf-\u0026gt;nr_users) en un puntero no v\u00e1lido provocar\u00e1 corrupci\u00f3n de memoria. No es necesario llamar a atomic_dec() si no se ha llamado a atomic_add_return(), as\u00ed que actualice tambi\u00e9n la ruta if (intf-\u0026gt;in_shutdown).\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/7c1a6ddb99858e7d68961f74ae27caeeeca67b6a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9e0d33e75c1604c3fad5586ad4dfa3b2695a3950\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/cbc1670297f675854e982d23c8583900ff0cc67a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e2d5c005dfc96fe857676d1d8ac46b29275cb89b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fa332f5dc6fc662ad7d3200048772c96b861cf6b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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