CVE-2026-89938 Linux Kernel iio Chemical Atlas-sensor - Use After Free

Linux kernel iio chemical atlas-sensor contains a use-after-free caused by improper irq_work handling in the threaded IRQ handler, letting attackers cause memory corruption, exploit requires hardware IRQ triggering.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.17% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Use After Free
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
16 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version containing the fix using iio_trigger_poll_nested() in the threaded handler.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs