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Brian Foley authored
If a virtio device reports a QueueNumMax of 0, vring_new_virtqueue() doesn't check this, and thanks to an unsigned (i < num - 1) loop guard, scribbles over memory when initialising the free list. Avoid by not trying to create zero-descriptor queues, as there's no way to do any I/O with one. Signed-off-by:
Brian Foley <brian.foley@arm.com> Signed-off-by:
Pawel Moll <pawel.moll@arm.com> Signed-off-by:
Rusty Russell <rusty@rustcorp.com.au>
d78b519f