CVE-2022-50192 (GCVE-0-2022-50192)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:03 – Updated: 2025-06-18 11:03
VLAI?
Title
spi: tegra20-slink: fix UAF in tegra_slink_remove()
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 26c863418221344b1cfb8e6c11116b2b81144281 , < 415b4ce61308f24583912d887772dfcbf97f1d20 (git)
Affected: 26c863418221344b1cfb8e6c11116b2b81144281 , < 800c7767e05d29656713e04532823a752e57e037 (git)
Affected: 26c863418221344b1cfb8e6c11116b2b81144281 , < 67f77172644260482fdafc03b6025847944701e5 (git)
Affected: 26c863418221344b1cfb8e6c11116b2b81144281 , < 7e9984d183bb1e99e766c5c2b950ff21f7f7b6c0 (git)
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    Linux Linux Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 5.15.61 , ≤ 5.15.* (semver)
Unaffected: 5.18.18 , ≤ 5.18.* (semver)
Unaffected: 5.19.2 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)
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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": [
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              "versionType": "git"
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        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "unaffected",
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        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "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:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
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                  "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"
        },
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          "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": {
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  },
  "cveMetadata": {
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    "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"
}


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