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CVE-2026-89934 (GCVE-0-2026-89934)

Vulnerability from cvelistv5 – Published: 2026-09-16 10:32 – Updated: 2026-09-16 10:32
VLAI
Title
iio: light: ltrf216a: fix runtime PM reference leak in error path
Summary
In the Linux kernel, the following vulnerability has been resolved: iio: light: ltrf216a: fix runtime PM reference leak in error path ltrf216a_get_lux() acquires a runtime PM reference by calling ltrf216a_set_power_state(data, true). However, if ltrf216a_read_data() fails, the function returns immediately without dropping the reference. This leaves the runtime PM usage count unbalanced, preventing the device from autosuspending after a failed read. Fix this by releasing the runtime PM reference before returning from the error path.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 83f0bcd40d5cf88870d2f2bb8b97c772b92a3d1f , < c4f003d8578f5718fe1ec332bc89f9ff69fd205b (git)
Affected: 83f0bcd40d5cf88870d2f2bb8b97c772b92a3d1f , < 0614928a3eda35bddd8c2f02311e286b59bbe746 (git)
Affected: 83f0bcd40d5cf88870d2f2bb8b97c772b92a3d1f , < 80e7381e8cccb543397572af153865f34aaf4353 (git)
Affected: 83f0bcd40d5cf88870d2f2bb8b97c772b92a3d1f , < c132aef0e757a39036b1d40faf0569f2e343b13e (git)
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Linux Linux Affected: 6.1
Unaffected: 0 , < 6.1 (semver)
Unaffected: 6.12.110 , ≤ 6.12.* (semver)
Unaffected: 6.18.51 , ≤ 6.18.* (semver)
Unaffected: 7.2.5 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/iio/light/ltrf216a.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c4f003d8578f5718fe1ec332bc89f9ff69fd205b",
              "status": "affected",
              "version": "83f0bcd40d5cf88870d2f2bb8b97c772b92a3d1f",
              "versionType": "git"
            },
            {
              "lessThan": "0614928a3eda35bddd8c2f02311e286b59bbe746",
              "status": "affected",
              "version": "83f0bcd40d5cf88870d2f2bb8b97c772b92a3d1f",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "83f0bcd40d5cf88870d2f2bb8b97c772b92a3d1f",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "83f0bcd40d5cf88870d2f2bb8b97c772b92a3d1f",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/iio/light/ltrf216a.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.1"
            },
            {
              "lessThan": "6.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.51",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.110",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.51",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.5",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: light: ltrf216a: fix runtime PM reference leak in error path\n\nltrf216a_get_lux() acquires a runtime PM reference by calling\nltrf216a_set_power_state(data, true). However, if\nltrf216a_read_data() fails, the function returns immediately without\ndropping the reference.\n\nThis leaves the runtime PM usage count unbalanced, preventing the device\nfrom autosuspending after a failed read.\n\nFix this by releasing the runtime PM reference before returning from the\nerror path."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-16T10:32:24.240Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c4f003d8578f5718fe1ec332bc89f9ff69fd205b"
        },
        {
          "url": "https://git.kernel.org/stable/c/0614928a3eda35bddd8c2f02311e286b59bbe746"
        },
        {
          "url": "https://git.kernel.org/stable/c/80e7381e8cccb543397572af153865f34aaf4353"
        },
        {
          "url": "https://git.kernel.org/stable/c/c132aef0e757a39036b1d40faf0569f2e343b13e"
        }
      ],
      "title": "iio: light: ltrf216a: fix runtime PM reference leak in error path",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-89934",
    "datePublished": "2026-09-16T10:32:24.240Z",
    "dateReserved": "2026-09-11T19:38:34.776Z",
    "dateUpdated": "2026-09-16T10:32:24.240Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "microsoft_vex": {
      "current_release_date": "2026-09-17T01:14:11.000Z",
      "cve": "CVE-2026-89934",
      "id": "msrc_CVE-2026-89934",
      "initial_release_date": "2026-09-17T01:14:11.000Z",
      "product_status:known_affected": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "iio: light: ltrf216a: fix runtime PM reference leak in error path",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-89934.json",
      "version": "1"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-89934\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-09-16T11:17:02.800\",\"lastModified\":\"2026-09-16T11:17:02.800\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\niio: light: ltrf216a: fix runtime PM reference leak in error path\\n\\nltrf216a_get_lux() acquires a runtime PM reference by calling\\nltrf216a_set_power_state(data, true). However, if\\nltrf216a_read_data() fails, the function returns immediately without\\ndropping the reference.\\n\\nThis leaves the runtime PM usage count unbalanced, preventing the device\\nfrom autosuspending after a failed read.\\n\\nFix this by releasing the runtime PM reference before returning from the\\nerror path.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/iio/light/ltrf216a.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"83f0bcd40d5cf88870d2f2bb8b97c772b92a3d1f\",\"lessThan\":\"c4f003d8578f5718fe1ec332bc89f9ff69fd205b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"83f0bcd40d5cf88870d2f2bb8b97c772b92a3d1f\",\"lessThan\":\"0614928a3eda35bddd8c2f02311e286b59bbe746\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"83f0bcd40d5cf88870d2f2bb8b97c772b92a3d1f\",\"lessThan\":\"80e7381e8cccb543397572af153865f34aaf4353\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"83f0bcd40d5cf88870d2f2bb8b97c772b92a3d1f\",\"lessThan\":\"c132aef0e757a39036b1d40faf0569f2e343b13e\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/iio/light/ltrf216a.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.1\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.1\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.110\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.51\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2.5\",\"lessThanOrEqual\":\"7.2.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.3-rc1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0614928a3eda35bddd8c2f02311e286b59bbe746\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/80e7381e8cccb543397572af153865f34aaf4353\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c132aef0e757a39036b1d40faf0569f2e343b13e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c4f003d8578f5718fe1ec332bc89f9ff69fd205b\",\"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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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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