CVE-2022-50192 (GCVE-0-2022-50192)
Vulnerability from cvelistv5
Published
2025-06-18 11:03
Modified
2025-06-18 11:03
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: spi: tegra20-slink: fix UAF in tegra_slink_remove() After calling spi_unregister_master(), the refcount of master will be decrease to 0, and it will be freed in spi_controller_release(), the device data also will be freed, so it will lead a UAF when using 'tspi'. To fix this, get the master before unregister and put it when finish using it.
References
Impacted products
Vendor Product Version
Linux Linux Version: 26c863418221344b1cfb8e6c11116b2b81144281
Version: 26c863418221344b1cfb8e6c11116b2b81144281
Version: 26c863418221344b1cfb8e6c11116b2b81144281
Version: 26c863418221344b1cfb8e6c11116b2b81144281
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/spi/spi-tegra20-slink.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "415b4ce61308f24583912d887772dfcbf97f1d20",
              "status": "affected",
              "version": "26c863418221344b1cfb8e6c11116b2b81144281",
              "versionType": "git"
            },
            {
              "lessThan": "800c7767e05d29656713e04532823a752e57e037",
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              "versionType": "git"
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            {
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              "versionType": "git"
            },
            {
              "lessThan": "7e9984d183bb1e99e766c5c2b950ff21f7f7b6c0",
              "status": "affected",
              "version": "26c863418221344b1cfb8e6c11116b2b81144281",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/spi/spi-tegra20-slink.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.15"
            },
            {
              "lessThan": "5.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.61",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.18.*",
              "status": "unaffected",
              "version": "5.18.18",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.61",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18.18",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.2",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: tegra20-slink: fix UAF in tegra_slink_remove()\n\nAfter calling spi_unregister_master(), the refcount of master will\nbe decrease to 0, and it will be freed in spi_controller_release(),\nthe device data also will be freed, so it will lead a UAF when using\n\u0027tspi\u0027. To fix this, get the master before unregister and put it when\nfinish using it."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-18T11:03:37.549Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/415b4ce61308f24583912d887772dfcbf97f1d20"
        },
        {
          "url": "https://git.kernel.org/stable/c/800c7767e05d29656713e04532823a752e57e037"
        },
        {
          "url": "https://git.kernel.org/stable/c/67f77172644260482fdafc03b6025847944701e5"
        },
        {
          "url": "https://git.kernel.org/stable/c/7e9984d183bb1e99e766c5c2b950ff21f7f7b6c0"
        }
      ],
      "title": "spi: tegra20-slink: fix UAF in tegra_slink_remove()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50192",
    "datePublished": "2025-06-18T11:03:37.549Z",
    "dateReserved": "2025-06-18T10:57:27.428Z",
    "dateUpdated": "2025-06-18T11:03:37.549Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-50192\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-06-18T11:15:49.810\",\"lastModified\":\"2025-06-18T13:47:40.833\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nspi: tegra20-slink: fix UAF in tegra_slink_remove()\\n\\nAfter calling spi_unregister_master(), the refcount of master will\\nbe decrease to 0, and it will be freed in spi_controller_release(),\\nthe device data also will be freed, so it will lead a UAF when using\\n\u0027tspi\u0027. To fix this, get the master before unregister and put it when\\nfinish using it.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: spi: tegra20-slink: correcci\u00f3n del UAF en tegra_slink_remove(). Tras llamar a spi_unregister_master(), el recuento de referencias del master se reduce a 0 y se libera en spi_controller_release(). Los datos del dispositivo tambi\u00e9n se liberan, por lo que se generar\u00e1 un UAF al usar \u0027tspi\u0027. Para solucionar esto, obtenga el master antes de anular el registro y col\u00f3quelo al finalizar su uso.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/415b4ce61308f24583912d887772dfcbf97f1d20\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/67f77172644260482fdafc03b6025847944701e5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7e9984d183bb1e99e766c5c2b950ff21f7f7b6c0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/800c7767e05d29656713e04532823a752e57e037\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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