ghsa-jq5v-68r8-42wc
Vulnerability from github
Published
2024-02-28 09:30
Modified
2024-12-06 18:30
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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

i2c: cadence: fix reference leak when pm_runtime_get_sync fails

The PM reference count is not expected to be incremented on return in functions cdns_i2c_master_xfer and cdns_reg_slave.

However, pm_runtime_get_sync will increment pm usage counter 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.

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{
  "affected": [],
  "aliases": [
    "CVE-2020-36784"
  ],
  "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: cadence: fix reference leak when pm_runtime_get_sync fails\n\nThe PM reference count is not expected to be incremented on\nreturn in functions cdns_i2c_master_xfer and cdns_reg_slave.\n\nHowever, pm_runtime_get_sync will increment pm usage counter\neven failed. Forgetting to putting operation will result in a\nreference leak here.\n\nReplace it with pm_runtime_resume_and_get to keep usage\ncounter balanced.",
  "id": "GHSA-jq5v-68r8-42wc",
  "modified": "2024-12-06T18:30:44Z",
  "published": "2024-02-28T09:30:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36784"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/23ceb8462dc6f4b4decdb5536a7e5fc477cdf0b6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/30410519328c94367e561fd878e5f0d3a0303585"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a45fc41beed8e0fe31864619c34aa00797fb60c1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d57ff04e0ed6f3be1682ae861ead33f879225e07"
    }
  ],
  "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"
    }
  ]
}


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