CVE-2023-53310 (GCVE-0-2023-53310)
Vulnerability from cvelistv5
Published
2025-09-16 16:11
Modified
2025-09-16 16:11
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: power: supply: axp288_fuel_gauge: Fix external_power_changed race fuel_gauge_external_power_changed() dereferences info->bat, which gets sets in axp288_fuel_gauge_probe() like this: info->bat = devm_power_supply_register(dev, &fuel_gauge_desc, &psy_cfg); As soon as devm_power_supply_register() has called device_add() the external_power_changed callback can get called. So there is a window where fuel_gauge_external_power_changed() may get called while info->bat has not been set yet leading to a NULL pointer dereference. Fixing this is easy. The external_power_changed callback gets passed the power_supply which will eventually get stored in info->bat, so fuel_gauge_external_power_changed() can simply directly use the passed in psy argument which is always valid.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0456b912121e45b3ef54abe3135e5dcb541f956c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a636c6ba9ce898207f283271cb28511206ab739b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f8319774d6f1567d6e7d03653174ab0c82c5c66d
Impacted products
Vendor Product Version
Linux Linux Version: 30abb3d07929137bf72327560e1595508a692c4e
Version: 30abb3d07929137bf72327560e1595508a692c4e
Version: 30abb3d07929137bf72327560e1595508a692c4e
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   Linux Linux Version: 5.18
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/power/supply/axp288_fuel_gauge.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "a636c6ba9ce898207f283271cb28511206ab739b",
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              "versionType": "git"
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/power/supply/axp288_fuel_gauge.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.18"
            },
            {
              "lessThan": "5.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.31",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.3.*",
              "status": "unaffected",
              "version": "6.3.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.4",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.31",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.3.5",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.4",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: axp288_fuel_gauge: Fix external_power_changed race\n\nfuel_gauge_external_power_changed() dereferences info-\u003ebat,\nwhich gets sets in axp288_fuel_gauge_probe() like this:\n\n  info-\u003ebat = devm_power_supply_register(dev, \u0026fuel_gauge_desc, \u0026psy_cfg);\n\nAs soon as devm_power_supply_register() has called device_add()\nthe external_power_changed callback can get called. So there is a window\nwhere fuel_gauge_external_power_changed() may get called while\ninfo-\u003ebat has not been set yet leading to a NULL pointer dereference.\n\nFixing this is easy. The external_power_changed callback gets passed\nthe power_supply which will eventually get stored in info-\u003ebat,\nso fuel_gauge_external_power_changed() can simply directly use\nthe passed in psy argument which is always valid."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-16T16:11:48.399Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/0456b912121e45b3ef54abe3135e5dcb541f956c"
        },
        {
          "url": "https://git.kernel.org/stable/c/a636c6ba9ce898207f283271cb28511206ab739b"
        },
        {
          "url": "https://git.kernel.org/stable/c/f8319774d6f1567d6e7d03653174ab0c82c5c66d"
        }
      ],
      "title": "power: supply: axp288_fuel_gauge: Fix external_power_changed race",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53310",
    "datePublished": "2025-09-16T16:11:48.399Z",
    "dateReserved": "2025-09-16T16:08:59.562Z",
    "dateUpdated": "2025-09-16T16:11:48.399Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53310\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-16T17:15:36.847\",\"lastModified\":\"2025-09-17T14:18:55.093\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\npower: supply: axp288_fuel_gauge: Fix external_power_changed race\\n\\nfuel_gauge_external_power_changed() dereferences info-\u003ebat,\\nwhich gets sets in axp288_fuel_gauge_probe() like this:\\n\\n  info-\u003ebat = devm_power_supply_register(dev, \u0026fuel_gauge_desc, \u0026psy_cfg);\\n\\nAs soon as devm_power_supply_register() has called device_add()\\nthe external_power_changed callback can get called. So there is a window\\nwhere fuel_gauge_external_power_changed() may get called while\\ninfo-\u003ebat has not been set yet leading to a NULL pointer dereference.\\n\\nFixing this is easy. The external_power_changed callback gets passed\\nthe power_supply which will eventually get stored in info-\u003ebat,\\nso fuel_gauge_external_power_changed() can simply directly use\\nthe passed in psy argument which is always valid.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0456b912121e45b3ef54abe3135e5dcb541f956c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a636c6ba9ce898207f283271cb28511206ab739b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f8319774d6f1567d6e7d03653174ab0c82c5c66d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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