CVE-2026-98656

iio: trigger: cancel reenable_work before freeing trigger

State: Published
Severity: Not scored
Published: Oct 18, 2026
Updated: Oct 30, 2026
Reserved: Sep 25, 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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	a18aeac73c0f692ba40964f5f56e182312ae843b to before beec4c9e23b8293c41d3448f9807c28fc9a599d4Affected 9020ef659885f2622cfb386cc229b6d618362895 to before 4e790a5bd4249877bcf0c94db12ac490965f9296Affected 9020ef659885f2622cfb386cc229b6d618362895 to before ac5d26a46c90ff61fd574eff4e8f0d71c905828aAffected 9020ef659885f2622cfb386cc229b6d618362895 to before cf513df1a2c75566cdc802d9da47f62e8d6cfd18Affected 9020ef659885f2622cfb386cc229b6d618362895 to before e64703280ce7a23a43c27efebeb7da457c88bf5cAffected 9020ef659885f2622cfb386cc229b6d618362895 to before 882d0011c59ff8ac15188ec9ce071399ecfa10adAffected 9020ef659885f2622cfb386cc229b6d618362895 to before 2a57b9246cecd5dd797a42eb310d6c8816f26d9eAffected 2c5c948451d57596640b20887b06b523d376eb24Affected 5.15.17 to before 5.15.224Affected 5.16.3 to before 5.17Affected
LinuxLinux	5.17Affected before 5.17Not affected 5.15.224 through 5.15.Not affected 6.1.191 through 6.1.Not affected 6.6.160 through 6.6.Not affected 6.12.113 through 6.12.Not affected 6.18.56 through 6.18.Not affected 7.2.10 through 7.2.Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

a18aeac73c0f692ba40964f5f56e182312ae843b to before beec4c9e23b8293c41d3448f9807c28fc9a599d4Affected
9020ef659885f2622cfb386cc229b6d618362895 to before 4e790a5bd4249877bcf0c94db12ac490965f9296Affected
9020ef659885f2622cfb386cc229b6d618362895 to before ac5d26a46c90ff61fd574eff4e8f0d71c905828aAffected
9020ef659885f2622cfb386cc229b6d618362895 to before cf513df1a2c75566cdc802d9da47f62e8d6cfd18Affected
9020ef659885f2622cfb386cc229b6d618362895 to before e64703280ce7a23a43c27efebeb7da457c88bf5cAffected
9020ef659885f2622cfb386cc229b6d618362895 to before 882d0011c59ff8ac15188ec9ce071399ecfa10adAffected
9020ef659885f2622cfb386cc229b6d618362895 to before 2a57b9246cecd5dd797a42eb310d6c8816f26d9eAffected
2c5c948451d57596640b20887b06b523d376eb24Affected
5.15.17 to before 5.15.224Affected
5.16.3 to before 5.17Affected

LinuxLinux

5.17Affected
before 5.17Not affected
5.15.224 through 5.15.*Not affected
6.1.191 through 6.1.*Not affected
6.6.160 through 6.6.*Not affected
6.12.113 through 6.12.*Not affected
6.18.56 through 6.18.*Not affected
7.2.10 through 7.2.*Not affected
7.3 and laterNot affected

References

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