ghsa-4mvh-rcqj-42gx
Vulnerability from github
Published
2024-02-28 09:30
Modified
2024-11-06 18:31
Severity ?
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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

i2c: sprd: fix reference leak when pm_runtime_get_sync fails

The PM reference count is not expected to be incremented on return in sprd_i2c_master_xfer() and sprd_i2c_remove().

However, pm_runtime_get_sync will increment the PM reference count even failed. Forgetting to putting operation will result in a reference leak here.

Replace it with pm_runtime_resume_and_get to keep usage counter balanced.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2020-36780"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-28T09:15:36Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: sprd: fix reference leak when pm_runtime_get_sync fails\n\nThe PM reference count is not expected to be incremented on\nreturn in sprd_i2c_master_xfer() and sprd_i2c_remove().\n\nHowever, pm_runtime_get_sync will increment the PM reference\ncount even failed. Forgetting to putting operation will result\nin a reference leak here.\n\nReplace it with pm_runtime_resume_and_get to keep usage\ncounter balanced.",
  "id": "GHSA-4mvh-rcqj-42gx",
  "modified": "2024-11-06T18:31:03Z",
  "published": "2024-02-28T09:30:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36780"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3a4f326463117cee3adcb72999ca34a9aaafda93"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7e1764312440c5df9dfe6b436035a03673b0c1b9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9223505e938ba3db5907e058f4209770cff2f2a7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d3406ab52097328a3bc4cbe124bfd8f6d51fb86f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e547640cee7981fd751d2c9cde3a61bdb678b755"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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