CVE-2022-50019 (GCVE-0-2022-50019)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:01 – Updated: 2025-09-03 12:58
VLAI?
Title
tty: serial: Fix refcount leak bug in ucc_uart.c
Summary
In the Linux kernel, the following vulnerability has been resolved: tty: serial: Fix refcount leak bug in ucc_uart.c In soc_info(), of_find_node_by_type() will return a node pointer with refcount incremented. We should use of_node_put() when it is not used anymore.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: d7584ed2b994a572326650b0c4d2c25961e6f49d , < 8245e7d1d7f75a9255ad1e8146752e5051d528b8 (git)
Affected: d7584ed2b994a572326650b0c4d2c25961e6f49d , < ec56f886f3bf0f15f7a3844d4c025e165b8e8de7 (git)
Affected: d7584ed2b994a572326650b0c4d2c25961e6f49d , < 59bc4c19d53bdac61ec952c01c6e864f5f0f8367 (git)
Affected: d7584ed2b994a572326650b0c4d2c25961e6f49d , < ca3fc1c38e4253bc019881301a28ea60b8b0bca3 (git)
Affected: d7584ed2b994a572326650b0c4d2c25961e6f49d , < 81939c4fbc2d5c754d0f1c1f05149d4b70d751ed (git)
Affected: d7584ed2b994a572326650b0c4d2c25961e6f49d , < 17c32546166d8a7d2579c4b57c8b16241f94a66b (git)
Affected: d7584ed2b994a572326650b0c4d2c25961e6f49d , < f6ed634eedb1a8a6a8cb110a7695c7abb70ffcbf (git)
Affected: d7584ed2b994a572326650b0c4d2c25961e6f49d , < d24d7bb2cd947676f9b71fb944d045e09b8b282f (git)
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    Linux Linux Affected: 2.6.25
Unaffected: 0 , < 2.6.25 (semver)
Unaffected: 4.9.326 , ≤ 4.9.* (semver)
Unaffected: 4.14.291 , ≤ 4.14.* (semver)
Unaffected: 4.19.256 , ≤ 4.19.* (semver)
Unaffected: 5.4.211 , ≤ 5.4.* (semver)
Unaffected: 5.10.138 , ≤ 5.10.* (semver)
Unaffected: 5.15.63 , ≤ 5.15.* (semver)
Unaffected: 5.19.4 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/tty/serial/ucc_uart.c"
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          ],
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.25"
            },
            {
              "lessThan": "2.6.25",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.326",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.291",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.256",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.211",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.138",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.63",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "versionStartIncluding": "2.6.25",
                  "vulnerable": true
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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\ntty: serial: Fix refcount leak bug in ucc_uart.c\n\nIn soc_info(), of_find_node_by_type() will return a node pointer\nwith refcount incremented. We should use of_node_put() when it is\nnot used anymore."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-03T12:58:59.693Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8245e7d1d7f75a9255ad1e8146752e5051d528b8"
        },
        {
          "url": "https://git.kernel.org/stable/c/ec56f886f3bf0f15f7a3844d4c025e165b8e8de7"
        },
        {
          "url": "https://git.kernel.org/stable/c/59bc4c19d53bdac61ec952c01c6e864f5f0f8367"
        },
        {
          "url": "https://git.kernel.org/stable/c/ca3fc1c38e4253bc019881301a28ea60b8b0bca3"
        },
        {
          "url": "https://git.kernel.org/stable/c/81939c4fbc2d5c754d0f1c1f05149d4b70d751ed"
        },
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          "url": "https://git.kernel.org/stable/c/17c32546166d8a7d2579c4b57c8b16241f94a66b"
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          "url": "https://git.kernel.org/stable/c/f6ed634eedb1a8a6a8cb110a7695c7abb70ffcbf"
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        {
          "url": "https://git.kernel.org/stable/c/d24d7bb2cd947676f9b71fb944d045e09b8b282f"
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      ],
      "title": "tty: serial: Fix refcount leak bug in ucc_uart.c",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50019",
    "datePublished": "2025-06-18T11:01:23.332Z",
    "dateReserved": "2025-06-18T10:57:27.393Z",
    "dateUpdated": "2025-09-03T12:58:59.693Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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