vfio: prevent infinite loop in vfio_mig_get_next_state() on blocked arc

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CVE-2026-64474

The CVE-2026-64474 issue affects the Linux kernel VFIO path, specifically vfio_mig_get_next_state() which walks vfio_from_fsm_table[] and could spin forever when encountering an ERROR sentinel (STOP_COPY arcs to ERROR). The root cause was an unaccounted ERROR sentinel in the skip loop, allowing a...

CVE-2026-64474

In the Linux kernel, the following vulnerability has been resolved: vfio: prevent infinite loop in vfiomiggetnextstate on blocked arc vfiomiggetnextstate walks vfiofromfsmtable one step at a time, looping to skip optional states the device does not support until nextfsm is supported. A blocked...

CVE-2026-64474

In the Linux kernel, the following vulnerability has been resolved: vfio: prevent infinite loop in vfiomiggetnextstate on blocked arc vfiomiggetnextstate walks vfiofromfsmtable one step at a time, looping to skip optional states the device does not support until nextfsm is supported. A blocked...