SEPTEMBER 18, 2026
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Case File

CVE-2026-80553

HIGH · CVSS 8.8 EPSS 0.13%

Source: NVD + CISA KEV + EPSS · Published 2026-08-26 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

A vulnerability in the Linux kernel affects the s390 architecture's vfio_ccw component, where improper handling of workqueues could lead to work being dispatched after the associated private structure has been freed. This flaw could potentially allow for unauthorized access or manipulation of system resources, posing a risk to system integrity. Organizations using Linux on s390 systems should prioritize applying the relevant patches to mitigate potential exploitation risks.

CVE
CVE-2026-80553
Severity
HIGH
CVSS
8.8
EPSS
0.13%
Linux

Original NVD Description

In the Linux kernel, the following vulnerability has been resolved: s390/vfio_ccw: Cancel existing workqueues The initialization of the io_work and crw_work workqueues begs the question of whether they should be un-initialized. Add the corresponding cleanup tags in _release_dev to ensure work isn't dispatched after the private struct is free'd.