CVE-2025-38269 (GCVE-0-2025-38269)
Vulnerability from cvelistv5
Published
2025-07-10 07:41
Modified
2025-07-28 04:16
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: exit after state insertion failure at btrfs_convert_extent_bit() If insert_state() state failed it returns an error pointer and we call extent_io_tree_panic() which will trigger a BUG() call. However if CONFIG_BUG is disabled, which is an uncommon and exotic scenario, then we fallthrough and call cache_state() which will dereference the error pointer, resulting in an invalid memory access. So jump to the 'out' label after calling extent_io_tree_panic(), it also makes the code more clear besides dealing with the exotic scenario where CONFIG_BUG is disabled.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/btrfs/extent-io-tree.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "lessThan": "58c50f45e1821a04d61b62514f9bd34afe67c622",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "8d9d32088e304e2bc444a3087cab0bbbd9951866",
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              "versionType": "git"
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          "product": "Linux",
          "programFiles": [
            "fs/btrfs/extent-io-tree.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "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"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.34",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: exit after state insertion failure at btrfs_convert_extent_bit()\n\nIf insert_state() state failed it returns an error pointer and we call\nextent_io_tree_panic() which will trigger a BUG() call. However if\nCONFIG_BUG is disabled, which is an uncommon and exotic scenario, then\nwe fallthrough and call cache_state() which will dereference the error\npointer, resulting in an invalid memory access.\n\nSo jump to the \u0027out\u0027 label after calling extent_io_tree_panic(), it also\nmakes the code more clear besides dealing with the exotic scenario where\nCONFIG_BUG is disabled."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-28T04:16:49.847Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/58c50f45e1821a04d61b62514f9bd34afe67c622"
        },
        {
          "url": "https://git.kernel.org/stable/c/8d9d32088e304e2bc444a3087cab0bbbd9951866"
        },
        {
          "url": "https://git.kernel.org/stable/c/3bf179e36da917c5d9bec71c714573ed1649b7c1"
        }
      ],
      "title": "btrfs: exit after state insertion failure at btrfs_convert_extent_bit()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38269",
    "datePublished": "2025-07-10T07:41:51.846Z",
    "dateReserved": "2025-04-16T04:51:23.998Z",
    "dateUpdated": "2025-07-28T04:16:49.847Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38269\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-07-10T08:15:25.083\",\"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\\nbtrfs: exit after state insertion failure at btrfs_convert_extent_bit()\\n\\nIf insert_state() state failed it returns an error pointer and we call\\nextent_io_tree_panic() which will trigger a BUG() call. However if\\nCONFIG_BUG is disabled, which is an uncommon and exotic scenario, then\\nwe fallthrough and call cache_state() which will dereference the error\\npointer, resulting in an invalid memory access.\\n\\nSo jump to the \u0027out\u0027 label after calling extent_io_tree_panic(), it also\\nmakes the code more clear besides dealing with the exotic scenario where\\nCONFIG_BUG is disabled.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: btrfs: salida tras fallo de inserci\u00f3n de estado en btrfs_convert_extent_bit(). Si el estado insert_state() falla, devuelve un puntero de error y se llama a extent_io_tree_panic(), lo que activa una llamada a BUG(). Sin embargo, si CONFIG_BUG est\u00e1 deshabilitado (un escenario inusual y ex\u00f3tico), se pasa a la siguiente etapa y se llama a cache_state(), lo que desreferencia el puntero de error, lo que resulta en un acceso no v\u00e1lido a memoria. Por lo tanto, al saltar a la etiqueta \\\"out\\\" despu\u00e9s de llamar a extent_io_tree_panic(), se aclara el c\u00f3digo, adem\u00e1s de abordar el escenario ex\u00f3tico donde CONFIG_BUG est\u00e1 deshabilitado.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3bf179e36da917c5d9bec71c714573ed1649b7c1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/58c50f45e1821a04d61b62514f9bd34afe67c622\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8d9d32088e304e2bc444a3087cab0bbbd9951866\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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