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CVE-2026-89939 (GCVE-0-2026-89939)

Vulnerability from cvelistv5 – Published: 2026-09-16 10:32 – Updated: 2026-09-16 10:32
VLAI
Title
iio: chemical: atlas-sensor: fix PM reference leak in buffer postenable
Summary
In the Linux kernel, the following vulnerability has been resolved: iio: chemical: atlas-sensor: fix PM reference leak in buffer postenable atlas_buffer_postenable() acquires a runtime PM reference with pm_runtime_resume_and_get() but returns the result of atlas_set_interrupt() directly. If atlas_set_interrupt() fails, the runtime PM reference is leaked and the device can never autosuspend. Add pm_runtime_put_autosuspend() on the error path to balance the reference.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 0e4f336f50debeacd0f81e931e8451f2ae03f685 , < c7e91ae6d7802170f53ece09a4ecc6302265d3e4 (git)
Affected: 0e4f336f50debeacd0f81e931e8451f2ae03f685 , < a595f4d3e4ee1c91c62a298730a77b16dc26b426 (git)
Affected: 0e4f336f50debeacd0f81e931e8451f2ae03f685 , < 72daa7eb7fc6202fece0bb56487d72af5c49ccdf (git)
Affected: 0e4f336f50debeacd0f81e931e8451f2ae03f685 , < aedf8f068d9da774d5cb62e9c9d6e62b2ce64d86 (git)
Affected: 0e4f336f50debeacd0f81e931e8451f2ae03f685 , < 43bce901047e95bbf8fb63eb471460642e497604 (git)
Affected: 0e4f336f50debeacd0f81e931e8451f2ae03f685 , < 777e8ebfe6b3fa733694977f0f4cf849e07e925c (git)
Affected: 0e4f336f50debeacd0f81e931e8451f2ae03f685 , < bcd3f72e26314edfce7eaf8d7160b3119c7b7fed (git)
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Linux Linux Affected: 5.14
Unaffected: 0 , < 5.14 (semver)
Unaffected: 5.15.221 , ≤ 5.15.* (semver)
Unaffected: 6.1.188 , ≤ 6.1.* (semver)
Unaffected: 6.6.157 , ≤ 6.6.* (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/chemical/atlas-sensor.c"
          ],
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          ],
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.14"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
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              "status": "unaffected",
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        }
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      "cpeApplicability": [
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          "nodes": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "5.14",
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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\niio: chemical: atlas-sensor: fix PM reference leak in buffer postenable\n\natlas_buffer_postenable() acquires a runtime PM reference with\npm_runtime_resume_and_get() but returns the result of\natlas_set_interrupt() directly. If atlas_set_interrupt() fails,\nthe runtime PM reference is leaked and the device can never\nautosuspend.\n\nAdd pm_runtime_put_autosuspend() on the error path to balance\nthe reference."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-16T10:32:27.704Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c7e91ae6d7802170f53ece09a4ecc6302265d3e4"
        },
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          "url": "https://git.kernel.org/stable/c/a595f4d3e4ee1c91c62a298730a77b16dc26b426"
        },
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          "url": "https://git.kernel.org/stable/c/bcd3f72e26314edfce7eaf8d7160b3119c7b7fed"
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      "title": "iio: chemical: atlas-sensor: fix PM reference leak in buffer postenable",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-89939",
    "datePublished": "2026-09-16T10:32:27.704Z",
    "dateReserved": "2026-09-11T19:38:34.776Z",
    "dateUpdated": "2026-09-16T10:32:27.704Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "microsoft_vex": {
      "current_release_date": "2026-09-17T01:05:51.000Z",
      "cve": "CVE-2026-89939",
      "id": "msrc_CVE-2026-89939",
      "initial_release_date": "2026-09-17T01:05:51.000Z",
      "product_status:known_affected": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "iio: chemical: atlas-sensor: fix PM reference leak in buffer postenable",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-89939.json",
      "version": "1"
    },
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • 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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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