SEPTEMBER 18, 2026
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Case File

CVE-2026-80547

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

The vulnerability affects the Linux kernel's s390/vfio_ccw component, specifically related to the management of the CRW region, which handles asynchronous hardware events. The lack of a proper locking mechanism for the payload list could lead to inconsistent reads, potentially compromising system stability or data integrity. Organizations using Linux on s390 architecture should prioritize addressing this issue to ensure robust performance and reliability in their environments.

CVE
CVE-2026-80547
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: Implement a crw lock Unlike the channel_program struct, which covers synchronous I/O submissions and asynchronous interrupts, the CRW region relies exclusively on asynchronous events coming from hardware. Implement a lock to manage the list of those payloads, to ensure they are read cohesively.