CVE-2026-80547

high

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.

References

https://git.kernel.org/stable/c/c76c4ee72bfc3824f4f491f18ed0323bf2e2daf9

https://git.kernel.org/stable/c/a3d60ae24183eee352c8e87a0ff94c97cd87f156

https://git.kernel.org/stable/c/7902be374cbfc11c3435e1e87bf22195bf06a558

https://git.kernel.org/stable/c/49fa26b0df009dc1f420980bd71780e70615b83b

https://git.kernel.org/stable/c/3c94d4179bcc19e01b28db634c07a58b28116209

https://git.kernel.org/stable/c/16b0798024c0e9117e395829ddbbe70981c79d9c

https://git.kernel.org/stable/c/0edd222730a9d7ec98368aaf1d40ee2d8d862e61

Details

Source: Mitre, NVD

Published: 2026-08-26

Updated: 2026-08-27

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 8.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00128