CVE-2026-98527 (GCVE-0-2026-98527)
Vulnerability from cvelistv5
Published
2026-10-18 15:17
Modified
2026-10-19 09:21
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: gpio: zynq: fix runtime PM leak on request error path pm_runtime_get_sync() leaves the usage counter incremented even when it fails, and zynq_gpio_request() returns the error without dropping it. gpiolib does not call ->free() when ->request() fails, so zynq_gpio_free(), which holds the only matching pm_runtime_put(), never runs. The reference is leaked and the controller can no longer runtime-suspend, so its clock stays enabled. Switch to pm_runtime_resume_and_get(), which only increments the usage counter on success.
References
Impacted products
Vendor Product Version
Linux Linux Version: 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52
Version: 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52
Version: 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52
Version: 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52
Version: 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52
Version: 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52
Version: 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52
Version: 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52
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{
  "containers": {
    "cna": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpio/gpio-zynq.c"
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.17"
            },
            {
              "lessThan": "3.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.271",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.222",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.112",
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              "status": "unaffected",
              "version": "6.18.55",
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              "lessThanOrEqual": "7.2.*",
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              "version": "7.2.9",
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              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: zynq: fix runtime PM leak on request error path\n\npm_runtime_get_sync() leaves the usage counter incremented even when it\nfails, and zynq_gpio_request() returns the error without dropping it.\n\ngpiolib does not call -\u003efree() when -\u003erequest() fails, so zynq_gpio_free(),\nwhich holds the only matching pm_runtime_put(), never runs. The reference\nis leaked and the controller can no longer runtime-suspend, so its clock\nstays enabled.\n\nSwitch to pm_runtime_resume_and_get(), which only increments the usage\ncounter on success."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:21:08.961Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e380fba02908b809f5bbef371259003cf5887bb4"
        },
        {
          "url": "https://git.kernel.org/stable/c/a3e9b7f7c9558f8c9592f8f817557bff98707bb3"
        },
        {
          "url": "https://git.kernel.org/stable/c/60a76cdd92e25f576dc58d756a565760dde1f7a1"
        },
        {
          "url": "https://git.kernel.org/stable/c/25c08be2a5e7715f19a6e02bbe9b0e5f01c77aac"
        },
        {
          "url": "https://git.kernel.org/stable/c/6e05f1c614a57a5d4c364dd12e20c6fd012f9d3e"
        },
        {
          "url": "https://git.kernel.org/stable/c/58a417a19d80141fff3abe6004e2e47285506e73"
        },
        {
          "url": "https://git.kernel.org/stable/c/6e20dabffbcd7b222d8e7bb85a7d8e8325df7699"
        },
        {
          "url": "https://git.kernel.org/stable/c/e9438ab5328a177c9c0e5df87eb92a7162841e98"
        }
      ],
      "title": "gpio: zynq: fix runtime PM leak on request error path",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98527",
    "datePublished": "2026-10-18T15:17:45.684Z",
    "dateReserved": "2026-09-25T10:25:14.355Z",
    "dateUpdated": "2026-10-19T09:21:08.961Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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