CVE-2026-63977

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-63977

Key Details

CVE	CVE-2026-63977
CVSS Score / Version	7.8 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

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

dpll: zl3073x: use __dpll_device_change_ntf() and remove change_work

The change_work was introduced to send device change notifications

from DPLL device callbacks without deadlocking on dpll_lock, since

the callbacks are already invoked under that lock. Now that

__dpll_device_change_ntf() is exported for callers that already

hold dpll_lock, use it directly and remove the change_work

infrastructure entirely.

This eliminates a race condition where change_work could be

re-scheduled after cancel_work_sync() during device teardown,

potentially causing the handler to dereference a freed or NULL

dpll_dev pointer. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-63977
CVE	https://www.cve.org/CVERecord?id=CVE-2026-63977

Source

Reference

NVD

CVE