CVE-2022-50417 (GCVE-0-2022-50417)

Vulnerability from cvelistv5 – Published: 2025-09-18 16:04 – Updated: 2025-09-18 16:04
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/panfrost: Fix GEM handle creation ref-counting panfrost_gem_create_with_handle() previously returned a BO but with the only reference being from the handle, which user space could in theory guess and release, causing a use-after-free. Additionally if the call to panfrost_gem_mapping_get() in panfrost_ioctl_create_bo() failed then a(nother) reference on the BO was dropped. The _create_with_handle() is a problematic pattern, so ditch it and instead create the handle in panfrost_ioctl_create_bo(). If the call to panfrost_gem_mapping_get() fails then this means that user space has indeed gone behind our back and freed the handle. In which case just return an error code.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: f3ba91228e8e917e5bd6c4b72bfe846933d17370 , < 0b70f6ea4d4f2b4d4b291d86ab76b4d07394932c (git)
Affected: f3ba91228e8e917e5bd6c4b72bfe846933d17370 , < 4f1105ee72d8c7c35d90e3491b31b2d9d6b7e33a (git)
Affected: f3ba91228e8e917e5bd6c4b72bfe846933d17370 , < 3f9feffa8a5ab08b4e298a27b1aa7204a7d42ca2 (git)
Affected: f3ba91228e8e917e5bd6c4b72bfe846933d17370 , < ba3d2c2380e7129b525a787489c0b7e819a3b898 (git)
Affected: f3ba91228e8e917e5bd6c4b72bfe846933d17370 , < 4217c6ac817451d5116687f3cc6286220dc43d49 (git)
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    Linux Linux Affected: 5.2
Unaffected: 0 , < 5.2 (semver)
Unaffected: 5.10.163 , ≤ 5.10.* (semver)
Unaffected: 5.15.87 , ≤ 5.15.* (semver)
Unaffected: 6.0.19 , ≤ 6.0.* (semver)
Unaffected: 6.1.5 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/panfrost/panfrost_drv.c",
            "drivers/gpu/drm/panfrost/panfrost_gem.c",
            "drivers/gpu/drm/panfrost/panfrost_gem.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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            "drivers/gpu/drm/panfrost/panfrost_gem.c",
            "drivers/gpu/drm/panfrost/panfrost_gem.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "5.2"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.163",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.87",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.19",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                },
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                },
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panfrost: Fix GEM handle creation ref-counting\n\npanfrost_gem_create_with_handle() previously returned a BO but with the\nonly reference being from the handle, which user space could in theory\nguess and release, causing a use-after-free. Additionally if the call to\npanfrost_gem_mapping_get() in panfrost_ioctl_create_bo() failed then\na(nother) reference on the BO was dropped.\n\nThe _create_with_handle() is a problematic pattern, so ditch it and\ninstead create the handle in panfrost_ioctl_create_bo(). If the call to\npanfrost_gem_mapping_get() fails then this means that user space has\nindeed gone behind our back and freed the handle. In which case just\nreturn an error code."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-18T16:04:00.512Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/0b70f6ea4d4f2b4d4b291d86ab76b4d07394932c"
        },
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          "url": "https://git.kernel.org/stable/c/4f1105ee72d8c7c35d90e3491b31b2d9d6b7e33a"
        },
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          "url": "https://git.kernel.org/stable/c/3f9feffa8a5ab08b4e298a27b1aa7204a7d42ca2"
        },
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        },
        {
          "url": "https://git.kernel.org/stable/c/4217c6ac817451d5116687f3cc6286220dc43d49"
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      ],
      "title": "drm/panfrost: Fix GEM handle creation ref-counting",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50417",
    "datePublished": "2025-09-18T16:04:00.512Z",
    "dateReserved": "2025-09-17T14:53:07.003Z",
    "dateUpdated": "2025-09-18T16:04:00.512Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-50417\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-18T16:15:45.123\",\"lastModified\":\"2025-09-19T16:00:27.847\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/panfrost: Fix GEM handle creation ref-counting\\n\\npanfrost_gem_create_with_handle() previously returned a BO but with the\\nonly reference being from the handle, which user space could in theory\\nguess and release, causing a use-after-free. Additionally if the call to\\npanfrost_gem_mapping_get() in panfrost_ioctl_create_bo() failed then\\na(nother) reference on the BO was dropped.\\n\\nThe _create_with_handle() is a problematic pattern, so ditch it and\\ninstead create the handle in panfrost_ioctl_create_bo(). If the call to\\npanfrost_gem_mapping_get() fails then this means that user space has\\nindeed gone behind our back and freed the handle. In which case just\\nreturn an error code.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0b70f6ea4d4f2b4d4b291d86ab76b4d07394932c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3f9feffa8a5ab08b4e298a27b1aa7204a7d42ca2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4217c6ac817451d5116687f3cc6286220dc43d49\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4f1105ee72d8c7c35d90e3491b31b2d9d6b7e33a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ba3d2c2380e7129b525a787489c0b7e819a3b898\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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