CVE-2026-98656
Published: October 21, 2026Last modified: November 3, 2026
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.
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.191-r0) |
| 25 LTS | linux-lts | Fixed (6.12.115-r0) | |
| Stream | linux-lts | Fixed (6.18.58-r0) |
References
- https://git.kernel.org/stable/c/2a57b9246cecd5dd797a42eb310d6c8816f26d9e
- https://git.kernel.org/stable/c/4e790a5bd4249877bcf0c94db12ac490965f9296
- https://git.kernel.org/stable/c/882d0011c59ff8ac15188ec9ce071399ecfa10ad
- https://git.kernel.org/stable/c/ac5d26a46c90ff61fd574eff4e8f0d71c905828a
- https://git.kernel.org/stable/c/beec4c9e23b8293c41d3448f9807c28fc9a599d4
- https://git.kernel.org/stable/c/cf513df1a2c75566cdc802d9da47f62e8d6cfd18
- https://git.kernel.org/stable/c/e64703280ce7a23a43c27efebeb7da457c88bf5c