iio: light: gp2ap020a00f: drain irq_work after free_irq

Summary

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.

Timeline

1. Oct 18, 2026, 3:44 PM UTCCVE published
2. Oct 21, 2026, 12:55 PM UTCRecord last updated

Affected versions

• Linux Linux

  From bf29fbeaa13d3350ca71df70c705d8b883c45692 · fixed in 85c20d1cf3f01a506605a16c2f9ce23b9c8b114f; From bf29fbeaa13d3350ca71df70c705d8b883c45692 · fixed in a36814b9fe00970116d30c3143d81e7425c4d334; From bf29fbeaa13d3350ca71df70c705d8b883c45692 · fixed in cc71400bc965c0d3894a38ead3d71243400c2d5e; From bf29fbeaa13d3350ca71df70c705d8b883c45692 · fixed in a1769877ff52a4f1bfb9ca535d1b5113808bd602; From bf29fbeaa13d3350ca71df70c705d8b883c45692 · fixed in 63213927b141085b6c8719b8037dab3074b7e0fe

• Linux Linux

  3.13

• KernelLinux

  From 3.13.0 · fixed in 6.6.160; From 6.7.0 · fixed in 6.12.113; From 6.13.0 · fixed in 6.18.56; From 6.19.0 · fixed in 7.2.10

References 5