CVE-2026-98662 (GCVE-0-2026-98662)
Vulnerability from cvelistv5
Published
2026-10-18 15:44
Modified
2026-10-30 12:38
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: iio: light: gp2ap020a00f: drain irq_work after free_irq The threaded IRQ handler queues data->work through irq_work_queue() so the trigger is polled from a per-CPU context. free_irq() does not flush an irq_work the handler already queued, so after gp2ap020a00f_remove() returns that work may still run and call iio_trigger_poll() on data->trig, which the devm cleanup has already freed, causing a use-after-free. Add irq_work_sync(&data->work) after free_irq() in remove() and in the probe error path, mirroring commit 78601726d4a5 ("iio: trigger: sysfs: fix use-after-free on remove"). Found by an in-house static analysis tool, confirmed by manual review.
References
Impacted products
Vendor Product Version
Linux Linux Version: bf29fbeaa13d3350ca71df70c705d8b883c45692
Version: bf29fbeaa13d3350ca71df70c705d8b883c45692
Version: bf29fbeaa13d3350ca71df70c705d8b883c45692
Version: bf29fbeaa13d3350ca71df70c705d8b883c45692
Version: bf29fbeaa13d3350ca71df70c705d8b883c45692
Version: bf29fbeaa13d3350ca71df70c705d8b883c45692
Version: bf29fbeaa13d3350ca71df70c705d8b883c45692
Version: bf29fbeaa13d3350ca71df70c705d8b883c45692
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{
  "containers": {
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          "programFiles": [
            "drivers/iio/light/gp2ap020a00f.c"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: light: gp2ap020a00f: drain irq_work after free_irq\n\nThe threaded IRQ handler queues data-\u003ework through irq_work_queue() so\nthe trigger is polled from a per-CPU context.  free_irq() does not flush\nan irq_work the handler already queued, so after gp2ap020a00f_remove()\nreturns that work may still run and call iio_trigger_poll() on data-\u003etrig,\nwhich the devm cleanup has already freed, causing a use-after-free.\n\nAdd irq_work_sync(\u0026data-\u003ework) after free_irq() in remove() and in the\nprobe error path, mirroring commit 78601726d4a5 (\"iio: trigger: sysfs:\nfix use-after-free on remove\").\n\nFound by an in-house static analysis tool, confirmed by manual review."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-30T12:38:31.341Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6f2bb000493c3b4f5715b3103657393672aea05b"
        },
        {
          "url": "https://git.kernel.org/stable/c/43fbbb9eaae5d6f45668e3c4d45508c498d6ba9c"
        },
        {
          "url": "https://git.kernel.org/stable/c/d029639b079b28a5334f934c848d895bef0653d1"
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          "url": "https://git.kernel.org/stable/c/85c20d1cf3f01a506605a16c2f9ce23b9c8b114f"
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          "url": "https://git.kernel.org/stable/c/a36814b9fe00970116d30c3143d81e7425c4d334"
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          "url": "https://git.kernel.org/stable/c/cc71400bc965c0d3894a38ead3d71243400c2d5e"
        },
        {
          "url": "https://git.kernel.org/stable/c/a1769877ff52a4f1bfb9ca535d1b5113808bd602"
        },
        {
          "url": "https://git.kernel.org/stable/c/63213927b141085b6c8719b8037dab3074b7e0fe"
        }
      ],
      "title": "iio: light: gp2ap020a00f: drain irq_work after free_irq",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98662",
    "datePublished": "2026-10-18T15:44:24.421Z",
    "dateReserved": "2026-09-25T10:25:14.363Z",
    "dateUpdated": "2026-10-30T12:38:31.341Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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