CVEvulnerability
CVE-2026-98662
- Status
- Received
- Published
- 2026-10-18
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
iio: light: gp2ap020a00f: drain irq_work after free_irq
The threaded IRQ handler queues data->work through irq_work_queue() so
the trigger is polled from a per-CPU context. free_irq() does not flush
an irq_work the handler already queued, so after gp2ap020a00f_remove()
returns that work may still run and call iio_trigger_poll() on data->trig,
which the devm cleanup has already freed, causing a use-after-free.
Add irq_work_sync(&data->work) after free_irq() in remove() and in the
probe error path, mirroring commit 78601726d4a5 ("iio: trigger: sysfs:
fix use-after-free on remove").
Found by an in-house static analysis tool, confirmed by manual review.
References
- https://git.kernel.org/stable/c/63213927b141085b6c8719b8037dab3074b7e0fe git.kernel.org
- https://git.kernel.org/stable/c/85c20d1cf3f01a506605a16c2f9ce23b9c8b114f git.kernel.org
- https://git.kernel.org/stable/c/a1769877ff52a4f1bfb9ca535d1b5113808bd602 git.kernel.org
- https://git.kernel.org/stable/c/a36814b9fe00970116d30c3143d81e7425c4d334 git.kernel.org
- https://git.kernel.org/stable/c/cc71400bc965c0d3894a38ead3d71243400c2d5e git.kernel.org