CVE-2026-80547

HIGHCVSS 8.8/10

Last modified

CVE-2026-80547 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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..

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.

Metrics

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 3f02cb2fd9d2d9e8762102886e3e4b51285797ee, < 3c94d4179bcc19e01b28db634c07a58b28116209; >= 3f02cb2fd9d2d9e8762102886e3e4b51285797ee, < 0edd222730a9d7ec98368aaf1d40ee2d8d862e61; >= 3f02cb2fd9d2d9e8762102886e3e4b51285797ee, < a3d60ae24183eee352c8e87a0ff94c97cd87f156; >= 3f02cb2fd9d2d9e8762102886e3e4b51285797ee, < 49fa26b0df009dc1f420980bd71780e70615b83b; >= 3f02cb2fd9d2d9e8762102886e3e4b51285797ee, < 7902be374cbfc11c3435e1e87bf22195bf06a558; >= 3f02cb2fd9d2d9e8762102886e3e4b51285797ee, < c76c4ee72bfc3824f4f491f18ed0323bf2e2daf9; >= 3f02cb2fd9d2d9e8762102886e3e4b51285797ee, < 16b0798024c0e9117e395829ddbbe70981c79d9c
LinuxLinux5.8

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-80547?
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.
How severe is CVE-2026-80547?
CVE-2026-80547 has a CVSS score of 8.8/10 (HIGH severity).
How do I fix CVE-2026-80547?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST