CVE-2023-53834 (GCVE-0-2023-53834)
Vulnerability from cvelistv5
Published
2025-12-09 01:29
Modified
2025-12-09 01:29
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: iio: adc: ina2xx: avoid NULL pointer dereference on OF device match The affected lines were resulting in a NULL pointer dereference on our platform because the device tree contained the following list of compatible strings: power-sensor@40 { compatible = "ti,ina232", "ti,ina231"; ... }; Since the driver doesn't declare a compatible string "ti,ina232", the OF matching succeeds on "ti,ina231". But the I2C device ID info is populated via the first compatible string, cf. modalias population in of_i2c_get_board_info(). Since there is no "ina232" entry in the legacy I2C device ID table either, the struct i2c_device_id *id pointer in the probe function is NULL. Fix this by using the already populated type variable instead, which points to the proper driver data. Since the name is also wanted, add a generic one to the ina2xx_config table.
References
Impacted products
Vendor Product Version
Linux Linux Version: c43a102e67db99c8bfe6e8a9280cec13ff53b789
Version: c43a102e67db99c8bfe6e8a9280cec13ff53b789
Version: c43a102e67db99c8bfe6e8a9280cec13ff53b789
Version: c43a102e67db99c8bfe6e8a9280cec13ff53b789
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/iio/adc/ina2xx-adc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "versionType": "git"
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              "versionType": "git"
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              "versionType": "git"
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          "product": "Linux",
          "programFiles": [
            "drivers/iio/adc/ina2xx-adc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.5"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "5.15.127",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "6.1.46",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.11",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.127",
                  "versionStartIncluding": "4.5",
                  "vulnerable": true
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                {
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                  "versionEndExcluding": "6.1.46",
                  "versionStartIncluding": "4.5",
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                  "versionStartIncluding": "4.5",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: ina2xx: avoid NULL pointer dereference on OF device match\n\nThe affected lines were resulting in a NULL pointer dereference on our\nplatform because the device tree contained the following list of\ncompatible strings:\n\n    power-sensor@40 {\n        compatible = \"ti,ina232\", \"ti,ina231\";\n        ...\n    };\n\nSince the driver doesn\u0027t declare a compatible string \"ti,ina232\", the OF\nmatching succeeds on \"ti,ina231\". But the I2C device ID info is\npopulated via the first compatible string, cf. modalias population in\nof_i2c_get_board_info(). Since there is no \"ina232\" entry in the legacy\nI2C device ID table either, the struct i2c_device_id *id pointer in the\nprobe function is NULL.\n\nFix this by using the already populated type variable instead, which\npoints to the proper driver data. Since the name is also wanted, add a\ngeneric one to the ina2xx_config table."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-09T01:29:49.742Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a8e2ae6296d56478fb98ae7f739846ed121f154f"
        },
        {
          "url": "https://git.kernel.org/stable/c/77b689cc27d489b75d33f1a368356d70eb0ce08c"
        },
        {
          "url": "https://git.kernel.org/stable/c/13f3ce53b65aa8b44cad7039d31e62c9ffd6c5d1"
        },
        {
          "url": "https://git.kernel.org/stable/c/a41e19cc0d6b6a445a4133170b90271e4a2553dc"
        }
      ],
      "title": "iio: adc: ina2xx: avoid NULL pointer dereference on OF device match",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53834",
    "datePublished": "2025-12-09T01:29:49.742Z",
    "dateReserved": "2025-12-09T01:27:17.825Z",
    "dateUpdated": "2025-12-09T01:29:49.742Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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