CVE-2022-50292 (GCVE-0-2022-50292)
Vulnerability from cvelistv5
Published
2025-09-15 14:45
Modified
2025-09-15 14:45
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/msm/dp: fix bridge lifetime Device-managed resources allocated post component bind must be tied to the lifetime of the aggregate DRM device or they will not necessarily be released when binding of the aggregate device is deferred. This can lead resource leaks or failure to bind the aggregate device when binding is later retried and a second attempt to allocate the resources is made. For the DP bridges, previously allocated bridges will leak on probe deferral. Fix this by amending the DP parser interface and tying the lifetime of the bridge device to the DRM device rather than DP platform device. Patchwork: https://patchwork.freedesktop.org/patch/502667/
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/16194958f888d63839042d1190f7001e5ddec47b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7eda6977e8058dd45607a5bbc6517a0f42ccd6c9
Impacted products
Vendor Product Version
Linux Linux Version: c3bf8e21b38a89418f2e22173b229aaad2306815
Version: c3bf8e21b38a89418f2e22173b229aaad2306815
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   Linux Linux Version: 5.19
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{
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        {
          "defaultStatus": "unaffected",
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          "programFiles": [
            "drivers/gpu/drm/msm/dp/dp_display.c",
            "drivers/gpu/drm/msm/dp/dp_parser.c",
            "drivers/gpu/drm/msm/dp/dp_parser.h"
          ],
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          "vendor": "Linux",
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/dp: fix bridge lifetime\n\nDevice-managed resources allocated post component bind must be tied to\nthe lifetime of the aggregate DRM device or they will not necessarily be\nreleased when binding of the aggregate device is deferred.\n\nThis can lead resource leaks or failure to bind the aggregate device\nwhen binding is later retried and a second attempt to allocate the\nresources is made.\n\nFor the DP bridges, previously allocated bridges will leak on probe\ndeferral.\n\nFix this by amending the DP parser interface and tying the lifetime of\nthe bridge device to the DRM device rather than DP platform device.\n\nPatchwork: https://patchwork.freedesktop.org/patch/502667/"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-15T14:45:48.427Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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        },
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          "url": "https://git.kernel.org/stable/c/16194958f888d63839042d1190f7001e5ddec47b"
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      ],
      "title": "drm/msm/dp: fix bridge lifetime",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50292",
    "datePublished": "2025-09-15T14:45:48.427Z",
    "dateReserved": "2025-09-15T14:18:36.811Z",
    "dateUpdated": "2025-09-15T14:45:48.427Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
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  }
}


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