CVE-2026-98656
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.
Affected versions
Linux kernel versions
5.15.17,
5.16.3,
5.17
and later are affected. Fixed in
6.12.113,
6.18.56,
7.2.10,
7.3
and their respective stable series.
References
4 totalFrequently asked questions
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What is CVE-2026-98656?
CVE-2026-98656 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.15.17 onward and has been patched in 6.12.113, 6.18.56, 7.2.10 and others. CVE-2026-98656 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-98656?
Yes. CVE-2026-98656 has been patched. Fixed versions include 6.12.113, 6.18.56, 7.2.10 and others. If you are running Linux kernel 5.15.17 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-98656 actively exploited?
No. CVE-2026-98656 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.