UnratedFix available
iio: trigger: cancel reenable_work before freeing trigger
Type: advisorySources: OSV
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.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.15.224, 6.1.191, 6.12.113, 6.18.56, 6.6.160, 7.2.10
- CVEs
- CVE-2026-98656
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 7 Nov 2026, 07:08 UTC · Revision 1
Source evidence
iio: trigger: cancel reenable_work before freeing trigger
core-osv · Original sourcePublished 18 Oct 2026, 15:44 UTC
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.
osv:CVE-2026-98656
Kernel
Fixed versions: 5.15.224, 6.1.191, 6.6.160, 6.12.113, 6.18.56, 7.2.10
Complete source record
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"title": "iio: trigger: cancel reenable_work before freeing trigger",
"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.",
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