ghsa-gg86-5h5f-jrwx
Vulnerability from github
Published
2024-05-21 15:31
Modified
2024-12-30 21:30
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:

drm/amd/display: Fix potential memory leak in DMUB hw_init

[Why] On resume we perform DMUB hw_init which allocates memory: dm_resume->dm_dmub_hw_init->dc_dmub_srv_create->kzalloc That results in memory leak in suspend/resume scenarios.

[How] Allocate memory for the DC wrapper to DMUB only if it was not allocated before. No need to reallocate it on suspend/resume.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47253"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-21T15:15:14Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix potential memory leak in DMUB hw_init\n\n[Why]\nOn resume we perform DMUB hw_init which allocates memory:\ndm_resume-\u003edm_dmub_hw_init-\u003edc_dmub_srv_create-\u003ekzalloc\nThat results in memory leak in suspend/resume scenarios.\n\n[How]\nAllocate memory for the DC wrapper to DMUB only if it was not\nallocated before.\nNo need to reallocate it on suspend/resume.",
  "id": "GHSA-gg86-5h5f-jrwx",
  "modified": "2024-12-30T21:30:46Z",
  "published": "2024-05-21T15:31:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47253"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9e8c2af010463197315fa54a6c17e74988b5259c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aa000f828e60ac15d6340f606ec4a673966f5b0b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c5699e2d863f58221044efdc3fa712dd32d55cde"
    }
  ],
  "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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