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audio: audio_generic_get_buffer_in should honor *size
The function generic_get_buffer_in currently ignores the *size parameter and may return a buffer larger than *size. As a result the variable samples in function audio_pcm_hw_run_in may underflow. The while loop then most likely will never termiate. Buglink: http://bugs.debian.org/948658 Signed-off-by: Volker Rümelin <vr_qemu@t-online.de> Message-Id: <20200123074943.6699-9-vr_qemu@t-online.de> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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@ -1407,7 +1407,8 @@ void *audio_generic_get_buffer_in(HWVoiceIn *hw, size_t *size)
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}
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assert(start >= 0 && start < hw->size_emul);
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*size = MIN(hw->pending_emul, hw->size_emul - start);
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*size = MIN(*size, hw->pending_emul);
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*size = MIN(*size, hw->size_emul - start);
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return hw->buf_emul + start;
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}
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