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When setting the parameters of a PCM stream, we compute the bit flag with the format and rate values as shift operand to check if they are set in supported_formats and supported_rates. If the guest provides a format/rate value which when shifting 1 results in a value bigger than the number of bits in supported_formats/supported_rates, we must report an error. Previously, this ended up triggering the not reached assertions later when converting to internal QEMU values. Reported-by: Zheyu Ma <zheyuma97@gmail.com> Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2416 Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> Message-Id: <virtio-snd-fuzz-2416-fix-v1-manos.pitsidianakis@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>