CVE-2026-98670

Status: ReceivedUnscored—

Severity—Unscored

Exploitation probability0.17 %higher than 6% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitNot knownno public code found

In the Linux kernel, the following vulnerability has been resolved:

iio: adc: xilinx-xadc: free IRQ before cancelling the unmask worker on unbind

The ZYNQ XADC alarm IRQ handler queues zynq_unmask_work via schedule_delayed_work(); that work is cleared by a devm callback. Register the devm callback before devm_request_irq() so the devres LIFO teardown frees the IRQ first, ensuring the handler can no longer queue work by the time the workqueue is cleared. Otherwise the handler could re-arm the work and run it after the xadc structure has been freed.

This issue was found by an in-house static analysis tool.

CVSS

NVD hasn't assigned a CVSS score to this CVE (common since the April 2026 policy change).

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.17 %
Percentile among all scored CVEs: 6
Score date: 10/20/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Linux — Linux Kernel^AI

References

Show 4 references

Raw JSON (NVD)

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{
  "id": "CVE-2026-98670",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2a9685d1a3b7644ca08d8355fc238b43faef7c3e",
              "lessThan": "a29d385ad7b340c952a3935af2b33488db1eb3a6",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2a9685d1a3b7644ca08d8355fc238b43faef7c3e",
              "lessThan": "a5fe2d1b55faba6d00fd87ad491b6cb603046304",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2a9685d1a3b7644ca08d8355fc238b43faef7c3e",
              "lessThan": "49ea8a359e362bfbb32a647c8eb7962fbb37234e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2a9685d1a3b7644ca08d8355fc238b43faef7c3e",
              "lessThan": "0f3f427076240e75ff265e61645627a71ca4918c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e96eb8853f334f96312968e4f01c5a452db54c00",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "5.10.200",
              "lessThan": "5.11",
              "versionType": "semver"
            }
          ],
          "programFiles": [
            "drivers/iio/adc/xilinx-xadc-core.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.12"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.12",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.12.113",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.56",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.10",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/iio/adc/xilinx-xadc-core.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-10-18T16:17:20.300",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0f3f427076240e75ff265e61645627a71ca4918c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/49ea8a359e362bfbb32a647c8eb7962fbb37234e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a29d385ad7b340c952a3935af2b33488db1eb3a6",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a5fe2d1b55faba6d00fd87ad491b6cb603046304",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: xilinx-xadc: free IRQ before cancelling the unmask worker on unbind\n\nThe ZYNQ XADC alarm IRQ handler queues zynq_unmask_work via\nschedule_delayed_work(); that work is cleared by a devm callback.\nRegister the devm callback before devm_request_irq() so the devres LIFO\nteardown frees the IRQ first, ensuring the handler can no longer queue\nwork by the time the workqueue is cleared. Otherwise the handler could\nre-arm the work and run it after the xadc structure has been freed.\n\nThis issue was found by an in-house static analysis tool."
    }
  ],
  "lastModified": "2026-10-19T10:19:31.420",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}