CVE-2025-39680 (GCVE-0-2025-39680)
Vulnerability from cvelistv5
Published
2025-09-05 17:20
Modified
2025-09-29 05:57
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: i2c: rtl9300: Fix out-of-bounds bug in rtl9300_i2c_smbus_xfer The data->block[0] variable comes from user. Without proper check, the variable may be very large to cause an out-of-bounds bug. Fix this bug by checking the value of data->block[0] first. 1. commit 39244cc75482 ("i2c: ismt: Fix an out-of-bounds bug in ismt_access()") 2. commit 92fbb6d1296f ("i2c: xgene-slimpro: Fix out-of-bounds bug in xgene_slimpro_i2c_xfer()")
References
Impacted products
Vendor Product Version
Linux Linux Version: c366be720235301fdadf67e6f1ea6ff32669c074
Version: c366be720235301fdadf67e6f1ea6ff32669c074
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/i2c/busses/i2c-rtl9300.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "lessThan": "071e43fcba5ddd9a7813e6cc0aa10299eae41b21",
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              "versionType": "git"
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          "programFiles": [
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          ],
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          "vendor": "Linux",
          "versions": [
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            },
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      ],
      "cpeApplicability": [
        {
          "nodes": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.4",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                },
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                  "versionStartIncluding": "6.13",
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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\ni2c: rtl9300: Fix out-of-bounds bug in rtl9300_i2c_smbus_xfer\n\nThe data-\u003eblock[0] variable comes from user. Without proper check,\nthe variable may be very large to cause an out-of-bounds bug.\n\nFix this bug by checking the value of data-\u003eblock[0] first.\n\n1. commit 39244cc75482 (\"i2c: ismt: Fix an out-of-bounds bug in\n   ismt_access()\")\n2. commit 92fbb6d1296f (\"i2c: xgene-slimpro: Fix out-of-bounds bug in\n   xgene_slimpro_i2c_xfer()\")"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-29T05:57:16.968Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/071e43fcba5ddd9a7813e6cc0aa10299eae41b21"
        },
        {
          "url": "https://git.kernel.org/stable/c/57f312b955938fc4663f430cb57a71f2414f601b"
        }
      ],
      "title": "i2c: rtl9300: Fix out-of-bounds bug in rtl9300_i2c_smbus_xfer",
      "x_generator": {
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      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39680",
    "datePublished": "2025-09-05T17:20:46.456Z",
    "dateReserved": "2025-04-16T07:20:57.112Z",
    "dateUpdated": "2025-09-29T05:57:16.968Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
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  }
}


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