github - ghsa-m279-rgmp-gm5j

GHSA-M279-RGMP-GM5J

Vulnerability from github – Published: 2025-09-22 21:30 – Updated: 2025-09-22 21:30

Details

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

iio: accel: mma8452: use the correct logic to get mma8452_data

The original logic to get mma8452_data is wrong, the *dev point to the device belong to iio_dev. we can't use this dev to find the correct i2c_client. The original logic happen to work because it finally use dev->driver_data to get iio_dev. Here use the API to_i2c_client() is wrong and make reader confuse. To correct the logic, it should be like this

struct mma8452_data *data = iio_priv(dev_get_drvdata(dev));

But after commit 8b7651f25962 ("iio: iio_device_alloc(): Remove unnecessary self drvdata"), the upper logic also can't work. When try to show the avialable scale in userspace, will meet kernel dump, kernel handle NULL pointer dereference.

So use dev_to_iio_dev() to correct the logic.

Dual fixes tags as the second reflects when the bug was exposed, whilst the first reflects when the original bug was introduced.

Severity ?

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49285"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:05Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: accel: mma8452: use the correct logic to get mma8452_data\n\nThe original logic to get mma8452_data is wrong, the *dev point to\nthe device belong to iio_dev. we can\u0027t use this dev to find the\ncorrect i2c_client. The original logic happen to work because it\nfinally use dev-\u003edriver_data to get iio_dev. Here use the API\nto_i2c_client() is wrong and make reader confuse. To correct the\nlogic, it should be like this\n\n  struct mma8452_data *data = iio_priv(dev_get_drvdata(dev));\n\nBut after commit 8b7651f25962 (\"iio: iio_device_alloc(): Remove\nunnecessary self drvdata\"), the upper logic also can\u0027t work.\nWhen try to show the avialable scale in userspace, will meet kernel\ndump, kernel handle NULL pointer dereference.\n\nSo use dev_to_iio_dev() to correct the logic.\n\nDual fixes tags as the second reflects when the bug was exposed, whilst\nthe first reflects when the original bug was introduced.",
  "id": "GHSA-m279-rgmp-gm5j",
  "modified": "2025-09-22T21:30:16Z",
  "published": "2025-09-22T21:30:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49285"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4c0bb583a4444cce224e8661090cbffc98e2fe07"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c87b7b12f48db86ac9909894f4dc0107d7df6375"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d2d9ebdbff79d87d27652578e6d1638ad3b5f3bf"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-49285 (GCVE-0-2022-49285)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:56 – Updated: 2025-05-04 08:34

Summary

In the Linux kernel, the following vulnerability has been resolved: iio: accel: mma8452: use the correct logic to get mma8452_data The original logic to get mma8452_data is wrong, the *dev point to the device belong to iio_dev. we can't use this dev to find the correct i2c_client. The original logic happen to work because it finally use dev->driver_data to get iio_dev. Here use the API to_i2c_client() is wrong and make reader confuse. To correct the logic, it should be like this struct mma8452_data *data = iio_priv(dev_get_drvdata(dev)); But after commit 8b7651f25962 ("iio: iio_device_alloc(): Remove unnecessary self drvdata"), the upper logic also can't work. When try to show the avialable scale in userspace, will meet kernel dump, kernel handle NULL pointer dereference. So use dev_to_iio_dev() to correct the logic. Dual fixes tags as the second reflects when the bug was exposed, whilst the first reflects when the original bug was introduced.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/4c0bb583a4444cce2…
	https://git.kernel.org/stable/c/d2d9ebdbff79d87d2…
	https://git.kernel.org/stable/c/c87b7b12f48db86ac…

Impacted products

Vendor

Product

Version

Linux

Affected: c3cdd6e48e35b7a02f28e301ef30a87ff3cd6527 , < 4c0bb583a4444cce224e8661090cbffc98e2fe07 (git)
Affected: c3cdd6e48e35b7a02f28e301ef30a87ff3cd6527 , < d2d9ebdbff79d87d27652578e6d1638ad3b5f3bf (git)
Affected: c3cdd6e48e35b7a02f28e301ef30a87ff3cd6527 , < c87b7b12f48db86ac9909894f4dc0107d7df6375 (git)

Linux

Affected: 4.4
Unaffected: 0 , < 4.4 (semver)
Unaffected: 5.15.54 , ≤ 5.15.* (semver)
Unaffected: 5.17.2 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/iio/accel/mma8452.c"
          ],
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          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4c0bb583a4444cce224e8661090cbffc98e2fe07",
              "status": "affected",
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              "versionType": "git"
            },
            {
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              "versionType": "git"
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.4"
            },
            {
              "lessThan": "4.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
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              "version": "5.15.54",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
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              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
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          "nodes": [
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              "cpeMatch": [
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                },
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                }
              ],
              "negate": false,
              "operator": "OR"
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        }
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      "descriptions": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: accel: mma8452: use the correct logic to get mma8452_data\n\nThe original logic to get mma8452_data is wrong, the *dev point to\nthe device belong to iio_dev. we can\u0027t use this dev to find the\ncorrect i2c_client. The original logic happen to work because it\nfinally use dev-\u003edriver_data to get iio_dev. Here use the API\nto_i2c_client() is wrong and make reader confuse. To correct the\nlogic, it should be like this\n\n  struct mma8452_data *data = iio_priv(dev_get_drvdata(dev));\n\nBut after commit 8b7651f25962 (\"iio: iio_device_alloc(): Remove\nunnecessary self drvdata\"), the upper logic also can\u0027t work.\nWhen try to show the avialable scale in userspace, will meet kernel\ndump, kernel handle NULL pointer dereference.\n\nSo use dev_to_iio_dev() to correct the logic.\n\nDual fixes tags as the second reflects when the bug was exposed, whilst\nthe first reflects when the original bug was introduced."
        }
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        "dateUpdated": "2025-05-04T08:34:15.589Z",
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        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/d2d9ebdbff79d87d27652578e6d1638ad3b5f3bf"
        },
        {
          "url": "https://git.kernel.org/stable/c/c87b7b12f48db86ac9909894f4dc0107d7df6375"
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      ],
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    "cveId": "CVE-2022-49285",
    "datePublished": "2025-02-26T01:56:25.096Z",
    "dateReserved": "2025-02-26T01:49:39.298Z",
    "dateUpdated": "2025-05-04T08:34:15.589Z",
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-M279-RGMP-GM5J

CVE-2022-49285 (GCVE-0-2022-49285)

Tags

Sightings

Nomenclature