CVE-2026-89992

HighCVSS 8.4/10Last modified Oct 19, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

cpuidle: dt_idle_genpd: kfree() the original name allocation

dt_idle_pd_alloc() kasprintf()s the full node path, then points pd->name at kbasename() of that string. dt_idle_pd_free() kfree()s pd->name, which is no longer the start of the allocation.

Copy the basename instead.

Metrics

CVSS 3.1 8.4/10CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published
Sep 16, 2026
Last modified
Oct 19, 2026
NVD status
Received

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CVE-2026-89992: High severity, CVSS 8.4 | Vulnix