fkie_cve-2021-47253
Vulnerability from fkie_nvd
Published
2024-05-21 15:15
Modified
2024-12-30 18:59
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9e8c2af010463197315fa54a6c17e74988b5259cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/aa000f828e60ac15d6340f606ec4a673966f5b0bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c5699e2d863f58221044efdc3fa712dd32d55cdePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9e8c2af010463197315fa54a6c17e74988b5259cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/aa000f828e60ac15d6340f606ec4a673966f5b0bPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c5699e2d863f58221044efdc3fa712dd32d55cdePatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.13
linux linux_kernel 5.13
linux linux_kernel 5.13
linux linux_kernel 5.13


To clipboard 

{
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      "nodes": [
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              "matchCriteriaId": "F3B07383-4728-46BB-ACFD-99788C336A01",
              "versionEndExcluding": "5.10.45",
              "vulnerable": true
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amd/display: corrige una posible p\u00e9rdida de memoria en DMUB hw_init [Por qu\u00e9] Al reanudar ejecutamos DMUB hw_init que asigna memoria: dm_resume-\u0026gt;dm_dmub_hw_init-\u0026gt;dc_dmub_srv_create-\u0026gt;kzalloc Eso resulta en p\u00e9rdida de memoria en escenarios de suspensi\u00f3n/reanudaci\u00f3n. [C\u00f3mo] Asigne memoria para el contenedor DC a DMUB solo si no se asign\u00f3 antes. No es necesario reasignarlo al suspender/reanudar."
    }
  ],
  "id": "CVE-2021-47253",
  "lastModified": "2024-12-30T18:59:10.807",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2024-05-21T15:15:14.160",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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        {
          "lang": "en",
          "value": "CWE-401"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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