EUVD-2026-66463

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...

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...

CVE-2026-80548

CVE-2026-80548 affects the Linux kernel s390/vfio_ccw subsystem, where the io_mutex lock had a scope too narrow to fully serialize I/O operations, leaving residual race conditions on I/O resources. The fix expands the lock's scope to close these windows and also reworks how cp_free() is invoked f...

CVE-2026-80548 s390/vfio_ccw: Selectively expand io_mutex

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...