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CVE-2026-98670

UnknownEPSS 0.17%

Last modified

CVE-2026-98670 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability
0.17%

6.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 2a9685d1a3b7644ca08d8355fc238b43faef7c3e, < 7958959ab2a906c04f783a3ffb979c45472ad647; >= 2a9685d1a3b7644ca08d8355fc238b43faef7c3e, < 012451d72c12293918617ff98cc737bedad21910; >= 2a9685d1a3b7644ca08d8355fc238b43faef7c3e, < a29d385ad7b340c952a3935af2b33488db1eb3a6; >= 2a9685d1a3b7644ca08d8355fc238b43faef7c3e, < a5fe2d1b55faba6d00fd87ad491b6cb603046304; >= 2a9685d1a3b7644ca08d8355fc238b43faef7c3e, < 49ea8a359e362bfbb32a647c8eb7962fbb37234e; >= 2a9685d1a3b7644ca08d8355fc238b43faef7c3e, < 0f3f427076240e75ff265e61645627a71ca4918c; e96eb8853f334f96312968e4f01c5a452db54c00; >= 5.10.200, < 5.11
LinuxLinux5.12

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-98670?
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.
How severe is CVE-2026-98670?
Severity scoring for CVE-2026-98670 is pending analysis. The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.
How do I fix CVE-2026-98670?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST