Vulnerability in Linux

[ Description ]Official 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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund18 Oct 2026WID-SEC-2026-4019

  Linux Kernel: Multiple vulnerabilities Translated from German

  CVE-2026-98866CVE-2026-98624CVE-2026-98745+326 more CVEs

[ References ]References

• git.kernel.org/stable/c/2a57b9246cecd5dd797a42eb310d6c8816f26d9e
• git.kernel.org/stable/c/882d0011c59ff8ac15188ec9ce071399ecfa10ad
• git.kernel.org/stable/c/ac5d26a46c90ff61fd574eff4e8f0d71c905828a
• git.kernel.org/stable/c/cf513df1a2c75566cdc802d9da47f62e8d6cfd18
• git.kernel.org/stable/c/e64703280ce7a23a43c27efebeb7da457c88bf5c