CVE-2026-98670
Published: October 21, 2026Last modified: November 3, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: iio: adc: xilinx-xadc: free IRQ before cancelling the unmask worker on unbind The ZYNQ XADC alarm IRQ handler queues zynq_unmask_work via schedule_delayed_work(); that work is cleared by a devm callback. Register the devm callback before devm_request_irq() so the devres LIFO teardown frees the IRQ first, ensuring the handler can no longer queue work by the time the workqueue is cleared. Otherwise the handler could re-arm the work and run it after the xadc structure has been freed. This issue was 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/012451d72c12293918617ff98cc737bedad21910
- https://git.kernel.org/stable/c/0f3f427076240e75ff265e61645627a71ca4918c
- https://git.kernel.org/stable/c/49ea8a359e362bfbb32a647c8eb7962fbb37234e
- https://git.kernel.org/stable/c/7958959ab2a906c04f783a3ffb979c45472ad647
- https://git.kernel.org/stable/c/a29d385ad7b340c952a3935af2b33488db1eb3a6
- https://git.kernel.org/stable/c/a5fe2d1b55faba6d00fd87ad491b6cb603046304