CVE-2026-89465 Linux Kernel rt9455 - Use After Free

Linux kernel power supply rt9455 contains a use-after-free vulnerability caused by improper cancellation order of delayed work in rt9455_remove(), letting attackers trigger workqueue callbacks accessing freed memory, exploit requires kernel-level access.

CVSS base score 8.4 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.14% 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:N/UI:N/S:U/C:H/I:H/A:H
Published
11 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version containing the fix for rt9455 delayed work cancellation.

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