FKIE_CVE-2026-98656

Vulnerability from fkie_nvd - Published: 2026-10-18 16:17 - Updated: 2026-10-30 13:21
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: iio: trigger: cancel reenable_work before freeing trigger iio_trigger_notify_done_atomic() defers ->reenable() into trig->reenable_work on the system workqueue, and the worker dereferences the owning trigger through container_of(). Nothing cancels this work before iio_trig_release() frees the trigger, so a worker armed by the last in-flight IRQ can outlive the free and touch freed memory. Cancel it at the top of iio_trig_release(), which every free path reaches through the device core's final put_device(). Found by an in-house static analysis tool.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2a57b9246cecd5dd797a42eb310d6c8816f26d9e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4e790a5bd4249877bcf0c94db12ac490965f9296
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/882d0011c59ff8ac15188ec9ce071399ecfa10ad
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ac5d26a46c90ff61fd574eff4e8f0d71c905828a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/beec4c9e23b8293c41d3448f9807c28fc9a599d4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cf513df1a2c75566cdc802d9da47f62e8d6cfd18
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e64703280ce7a23a43c27efebeb7da457c88bf5c
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/iio/industrialio-trigger.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "beec4c9e23b8293c41d3448f9807c28fc9a599d4",
              "status": "affected",
              "version": "a18aeac73c0f692ba40964f5f56e182312ae843b",
              "versionType": "git"
            },
            {
              "lessThan": "4e790a5bd4249877bcf0c94db12ac490965f9296",
              "status": "affected",
              "version": "9020ef659885f2622cfb386cc229b6d618362895",
              "versionType": "git"
            },
            {
              "lessThan": "ac5d26a46c90ff61fd574eff4e8f0d71c905828a",
              "status": "affected",
              "version": "9020ef659885f2622cfb386cc229b6d618362895",
              "versionType": "git"
            },
            {
              "lessThan": "cf513df1a2c75566cdc802d9da47f62e8d6cfd18",
              "status": "affected",
              "version": "9020ef659885f2622cfb386cc229b6d618362895",
              "versionType": "git"
            },
            {
              "lessThan": "e64703280ce7a23a43c27efebeb7da457c88bf5c",
              "status": "affected",
              "version": "9020ef659885f2622cfb386cc229b6d618362895",
              "versionType": "git"
            },
            {
              "lessThan": "882d0011c59ff8ac15188ec9ce071399ecfa10ad",
              "status": "affected",
              "version": "9020ef659885f2622cfb386cc229b6d618362895",
              "versionType": "git"
            },
            {
              "lessThan": "2a57b9246cecd5dd797a42eb310d6c8816f26d9e",
              "status": "affected",
              "version": "9020ef659885f2622cfb386cc229b6d618362895",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2c5c948451d57596640b20887b06b523d376eb24",
              "versionType": "git"
            },
            {
              "lessThan": "5.15.224",
              "status": "affected",
              "version": "5.15.17",
              "versionType": "semver"
            },
            {
              "lessThan": "5.17",
              "status": "affected",
              "version": "5.16.3",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/iio/industrialio-trigger.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.17"
            },
            {
              "lessThan": "5.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.224",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.191",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.160",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.113",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.56",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: trigger: cancel reenable_work before freeing trigger\n\niio_trigger_notify_done_atomic() defers -\u003ereenable() into\ntrig-\u003ereenable_work on the system workqueue, and the worker dereferences\nthe owning trigger through container_of().  Nothing cancels this work\nbefore iio_trig_release() frees the trigger, so a worker armed by the\nlast in-flight IRQ can outlive the free and touch freed memory.\n\nCancel it at the top of iio_trig_release(), which every free path\nreaches through the device core\u0027s final put_device().\n\nFound by an in-house static analysis tool."
    }
  ],
  "id": "CVE-2026-98656",
  "lastModified": "2026-10-30T13:21:16.343",
  "metrics": {},
  "published": "2026-10-18T16:17:18.907",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2a57b9246cecd5dd797a42eb310d6c8816f26d9e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4e790a5bd4249877bcf0c94db12ac490965f9296"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/882d0011c59ff8ac15188ec9ce071399ecfa10ad"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ac5d26a46c90ff61fd574eff4e8f0d71c905828a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/beec4c9e23b8293c41d3448f9807c28fc9a599d4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cf513df1a2c75566cdc802d9da47f62e8d6cfd18"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e64703280ce7a23a43c27efebeb7da457c88bf5c"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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