CVE-2026-89472 Linux Kernel - Use After Free

Linux kernel power supply charger-manager contains a use-after-free vulnerability caused by improper ordering of regulator release and sysfs teardown, letting local users cause memory corruption via concurrent sysfs writes, exploit requires concurrent access to externally_control sysfs attribute.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.16% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Use After Free
Impact
Privilege Escalation, 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
11 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version with the fix for proper regulator and sysfs teardown ordering.

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

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