CVE-2026-98656

medium

Description

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

https://git.kernel.org/stable/c/e64703280ce7a23a43c27efebeb7da457c88bf5c

https://git.kernel.org/stable/c/cf513df1a2c75566cdc802d9da47f62e8d6cfd18

https://git.kernel.org/stable/c/882d0011c59ff8ac15188ec9ce071399ecfa10ad

https://git.kernel.org/stable/c/2a57b9246cecd5dd797a42eb310d6c8816f26d9e

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-103910

Details

Source: Mitre, NVD

Published: 2026-10-18

Updated: 2026-10-19

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.00168