CVE-2023-52473 (GCVE-0-2023-52473)
Vulnerability from cvelistv5
Published
2024-02-25 08:16
Modified
2025-05-04 07:37
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: thermal: core: Fix NULL pointer dereference in zone registration error path If device_register() in thermal_zone_device_register_with_trips() returns an error, the tz variable is set to NULL and subsequently dereferenced in kfree(tz->tzp). Commit adc8749b150c ("thermal/drivers/core: Use put_device() if device_register() fails") added the tz = NULL assignment in question to avoid a possible double-free after dropping the reference to the zone device. However, after commit 4649620d9404 ("thermal: core: Make thermal_zone_device_unregister() return after freeing the zone"), that assignment has become redundant, because dropping the reference to the zone device does not cause the zone object to be freed any more. Drop it to address the NULL pointer dereference.
References
Impacted products
Vendor Product Version
Linux Linux Version: 3d439b1a2ad36c8b4ea151c8de25309d60d17407
Version: 3d439b1a2ad36c8b4ea151c8de25309d60d17407
Version: 3d439b1a2ad36c8b4ea151c8de25309d60d17407
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-52473",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-06-28T17:02:01.299999Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-28T17:02:09.319Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T23:03:19.761Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/335176dd8ebaca6493807dceea33c478305667fa"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/02871710b93058eb1249d5847c0b2d1c2c3c98ae"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/04e6ccfc93c5a1aa1d75a537cf27e418895e20ea"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/thermal/thermal_core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "335176dd8ebaca6493807dceea33c478305667fa",
              "status": "affected",
              "version": "3d439b1a2ad36c8b4ea151c8de25309d60d17407",
              "versionType": "git"
            },
            {
              "lessThan": "02871710b93058eb1249d5847c0b2d1c2c3c98ae",
              "status": "affected",
              "version": "3d439b1a2ad36c8b4ea151c8de25309d60d17407",
              "versionType": "git"
            },
            {
              "lessThan": "04e6ccfc93c5a1aa1d75a537cf27e418895e20ea",
              "status": "affected",
              "version": "3d439b1a2ad36c8b4ea151c8de25309d60d17407",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/thermal/thermal_core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.4"
            },
            {
              "lessThan": "6.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.8",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.14",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.7.2",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.8",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nthermal: core: Fix NULL pointer dereference in zone registration error path\n\nIf device_register() in thermal_zone_device_register_with_trips()\nreturns an error, the tz variable is set to NULL and subsequently\ndereferenced in kfree(tz-\u003etzp).\n\nCommit adc8749b150c (\"thermal/drivers/core: Use put_device() if\ndevice_register() fails\") added the tz = NULL assignment in question to\navoid a possible double-free after dropping the reference to the zone\ndevice.  However, after commit 4649620d9404 (\"thermal: core: Make\nthermal_zone_device_unregister() return after freeing the zone\"), that\nassignment has become redundant, because dropping the reference to the\nzone device does not cause the zone object to be freed any more.\n\nDrop it to address the NULL pointer dereference."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T07:37:26.795Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/335176dd8ebaca6493807dceea33c478305667fa"
        },
        {
          "url": "https://git.kernel.org/stable/c/02871710b93058eb1249d5847c0b2d1c2c3c98ae"
        },
        {
          "url": "https://git.kernel.org/stable/c/04e6ccfc93c5a1aa1d75a537cf27e418895e20ea"
        }
      ],
      "title": "thermal: core: Fix NULL pointer dereference in zone registration error path",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-52473",
    "datePublished": "2024-02-25T08:16:35.551Z",
    "dateReserved": "2024-02-20T12:30:33.298Z",
    "dateUpdated": "2025-05-04T07:37:26.795Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/335176dd8ebaca6493807dceea33c478305667fa\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/02871710b93058eb1249d5847c0b2d1c2c3c98ae\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/04e6ccfc93c5a1aa1d75a537cf27e418895e20ea\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T23:03:19.761Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-52473\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-06-28T17:02:01.299999Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-06-28T17:02:05.962Z\"}}], \"cna\": {\"title\": \"thermal: core: Fix NULL pointer dereference in zone registration error path\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3d439b1a2ad36c8b4ea151c8de25309d60d17407\", \"lessThan\": \"335176dd8ebaca6493807dceea33c478305667fa\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"3d439b1a2ad36c8b4ea151c8de25309d60d17407\", \"lessThan\": \"02871710b93058eb1249d5847c0b2d1c2c3c98ae\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"3d439b1a2ad36c8b4ea151c8de25309d60d17407\", \"lessThan\": \"04e6ccfc93c5a1aa1d75a537cf27e418895e20ea\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/thermal/thermal_core.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.4\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.4\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.6.14\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.7.2\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.7.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/thermal/thermal_core.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/335176dd8ebaca6493807dceea33c478305667fa\"}, {\"url\": \"https://git.kernel.org/stable/c/02871710b93058eb1249d5847c0b2d1c2c3c98ae\"}, {\"url\": \"https://git.kernel.org/stable/c/04e6ccfc93c5a1aa1d75a537cf27e418895e20ea\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nthermal: core: Fix NULL pointer dereference in zone registration error path\\n\\nIf device_register() in thermal_zone_device_register_with_trips()\\nreturns an error, the tz variable is set to NULL and subsequently\\ndereferenced in kfree(tz-\u003etzp).\\n\\nCommit adc8749b150c (\\\"thermal/drivers/core: Use put_device() if\\ndevice_register() fails\\\") added the tz = NULL assignment in question to\\navoid a possible double-free after dropping the reference to the zone\\ndevice.  However, after commit 4649620d9404 (\\\"thermal: core: Make\\nthermal_zone_device_unregister() return after freeing the zone\\\"), that\\nassignment has become redundant, because dropping the reference to the\\nzone device does not cause the zone object to be freed any more.\\n\\nDrop it to address the NULL pointer dereference.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.14\", \"versionStartIncluding\": \"6.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7.2\", \"versionStartIncluding\": \"6.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8\", \"versionStartIncluding\": \"6.4\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T07:37:26.795Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-52473\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T07:37:26.795Z\", \"dateReserved\": \"2024-02-20T12:30:33.298Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-02-25T08:16:35.551Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.