CVE-2026-80548

A flaw was found in the Linux kernel's s390/vfioccw component. The iomutex was not sufficiently expanded to serialize I/O operations, which could lead to race conditions. These race conditions could result in unexpected system behavior or instability. Mitigation This flaw can only be triggered...

CVE-2026-80548

In the Linux kernel, the following vulnerability has been resolved: s390/vfioccw: Selectively expand iomutex The iomutex was defined to serialize the ioregions, but then has also sort of been associated with the I/O themselves because of the close relationship they share. With the handful of race...