github - ghsa-2v26-28rg-whvc

ghsa-2v26-28rg-whvc

Vulnerability from github

Published

2024-05-21 15:31

Modified

2024-05-21 15:31

Details

In the Linux kernel, the following vulnerability has been resolved:

hwmon: (w83792d) Fix NULL pointer dereference by removing unnecessary structure field

If driver read val value sufficient for (val & 0x08) && (!(val & 0x80)) && ((val & 0x7) == ((val >> 4) & 0x7)) from device then Null pointer dereference occurs. (It is possible if tmp = 0b0xyz1xyz, where same literals mean same numbers) Also lm75[] does not serve a purpose anymore after switching to devm_i2c_new_dummy_device() in w83791d_detect_subclients().

The patch fixes possible NULL pointer dereference by removing lm75[].

Found by Linux Driver Verification project (linuxtesting.org).

[groeck: Dropped unnecessary continuation lines, fixed multipline alignment]

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2021-47385"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-21T15:15:24Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (w83792d) Fix NULL pointer dereference by removing unnecessary structure field\n\nIf driver read val value sufficient for\n(val \u0026 0x08) \u0026\u0026 (!(val \u0026 0x80)) \u0026\u0026 ((val \u0026 0x7) == ((val \u003e\u003e 4) \u0026 0x7))\nfrom device then Null pointer dereference occurs.\n(It is possible if tmp = 0b0xyz1xyz, where same literals mean same numbers)\nAlso lm75[] does not serve a purpose anymore after switching to\ndevm_i2c_new_dummy_device() in w83791d_detect_subclients().\n\nThe patch fixes possible NULL pointer dereference by removing lm75[].\n\nFound by Linux Driver Verification project (linuxtesting.org).\n\n[groeck: Dropped unnecessary continuation lines, fixed multipline alignment]",
  "id": "GHSA-2v26-28rg-whvc",
  "modified": "2024-05-21T15:31:44Z",
  "published": "2024-05-21T15:31:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47385"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0f36b88173f028e372668ae040ab1a496834d278"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1499bb2c3a87a2efea0065adab2bd66badee61c3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/200ced5ba724d8bbf29dfac4ed1e17a39ccaccd1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/24af1fe376e22c42238a4a604d31e46c486876c3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

cve-2021-47385

Vulnerability from cvelistv5

Published

2024-05-21 15:03

Modified

2024-11-04 12:04

Severity ?

Summary

hwmon: (w83792d) Fix NULL pointer dereference by removing unnecessary structure field

References

▼	URL	Tags
	https://git.kernel.org/stable/c/200ced5ba724d8bbf29dfac4ed1e17a39ccaccd1
	https://git.kernel.org/stable/c/1499bb2c3a87a2efea0065adab2bd66badee61c3
	https://git.kernel.org/stable/c/24af1fe376e22c42238a4a604d31e46c486876c3
	https://git.kernel.org/stable/c/0f36b88173f028e372668ae040ab1a496834d278

Impacted products

▼	Vendor	Product
	Linux	Linux
	Linux	Linux

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-47385",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-21T18:21:21.066599Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:13:54.726Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:39:59.690Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/200ced5ba724d8bbf29dfac4ed1e17a39ccaccd1"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/1499bb2c3a87a2efea0065adab2bd66badee61c3"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/24af1fe376e22c42238a4a604d31e46c486876c3"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/0f36b88173f028e372668ae040ab1a496834d278"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/hwmon/w83792d.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "200ced5ba724",
              "status": "affected",
              "version": "1da177e4c3f4",
              "versionType": "git"
            },
            {
              "lessThan": "1499bb2c3a87",
              "status": "affected",
              "version": "1da177e4c3f4",
              "versionType": "git"
            },
            {
              "lessThan": "24af1fe376e2",
              "status": "affected",
              "version": "1da177e4c3f4",
              "versionType": "git"
            },
            {
              "lessThan": "0f36b88173f0",
              "status": "affected",
              "version": "1da177e4c3f4",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/hwmon/w83792d.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.151",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.71",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.14.*",
              "status": "unaffected",
              "version": "5.14.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (w83792d) Fix NULL pointer dereference by removing unnecessary structure field\n\nIf driver read val value sufficient for\n(val \u0026 0x08) \u0026\u0026 (!(val \u0026 0x80)) \u0026\u0026 ((val \u0026 0x7) == ((val \u003e\u003e 4) \u0026 0x7))\nfrom device then Null pointer dereference occurs.\n(It is possible if tmp = 0b0xyz1xyz, where same literals mean same numbers)\nAlso lm75[] does not serve a purpose anymore after switching to\ndevm_i2c_new_dummy_device() in w83791d_detect_subclients().\n\nThe patch fixes possible NULL pointer dereference by removing lm75[].\n\nFound by Linux Driver Verification project (linuxtesting.org).\n\n[groeck: Dropped unnecessary continuation lines, fixed multipline alignment]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-04T12:04:52.757Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/200ced5ba724d8bbf29dfac4ed1e17a39ccaccd1"
        },
        {
          "url": "https://git.kernel.org/stable/c/1499bb2c3a87a2efea0065adab2bd66badee61c3"
        },
        {
          "url": "https://git.kernel.org/stable/c/24af1fe376e22c42238a4a604d31e46c486876c3"
        },
        {
          "url": "https://git.kernel.org/stable/c/0f36b88173f028e372668ae040ab1a496834d278"
        }
      ],
      "title": "hwmon: (w83792d) Fix NULL pointer dereference by removing unnecessary structure field",
      "x_generator": {
        "engine": "bippy-9e1c9544281a"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47385",
    "datePublished": "2024-05-21T15:03:45.615Z",
    "dateReserved": "2024-05-21T14:58:30.813Z",
    "dateUpdated": "2024-11-04T12:04:52.757Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.
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.

Action not permitted