Maintainers for gnuradio are A. Maitland Bottoms <bottoms@debian.org>.
You may want to refer to the following individual bug pages: gnuradio-dev, gnuradio-doc, libgnuradio-analog3.10.10, libgnuradio-analog3.10.5, libgnuradio-analog3.10.9, libgnuradio-analog3.10.9t64, libgnuradio-analog3.7.13, libgnuradio-analog3.8.2, libgnuradio-atsc3.7.13, libgnuradio-audio3.10.10, libgnuradio-audio3.10.5, libgnuradio-audio3.10.9, libgnuradio-audio3.10.9t64, libgnuradio-audio3.7.13, libgnuradio-audio3.8.2, libgnuradio-blocks3.10.10, libgnuradio-blocks3.10.5, libgnuradio-blocks3.10.9, libgnuradio-blocks3.10.9t64, libgnuradio-blocks3.7.13, libgnuradio-blocks3.8.2, libgnuradio-channels3.10.10, libgnuradio-channels3.10.5, libgnuradio-channels3.10.9, libgnuradio-channels3.10.9t64, libgnuradio-channels3.7.13, libgnuradio-channels3.8.2, libgnuradio-comedi3.7.13, libgnuradio-digital3.10.10, libgnuradio-digital3.10.5, libgnuradio-digital3.10.9, libgnuradio-digital3.10.9t64, libgnuradio-digital3.7.13, libgnuradio-digital3.8.2, libgnuradio-dtv3.10.10, libgnuradio-dtv3.10.5, libgnuradio-dtv3.10.9, libgnuradio-dtv3.10.9t64, libgnuradio-dtv3.7.13, libgnuradio-dtv3.8.2, libgnuradio-fcd3.7.13, libgnuradio-fec3.10.10, libgnuradio-fec3.10.5, libgnuradio-fec3.10.9, libgnuradio-fec3.10.9t64, libgnuradio-fec3.7.13, libgnuradio-fec3.8.2, libgnuradio-fft3.10.10, libgnuradio-fft3.10.5, libgnuradio-fft3.10.9, libgnuradio-fft3.10.9t64, libgnuradio-fft3.7.13, libgnuradio-fft3.8.2, libgnuradio-filter3.10.10, libgnuradio-filter3.10.5, libgnuradio-filter3.10.9, libgnuradio-filter3.10.9t64, libgnuradio-filter3.7.13, libgnuradio-filter3.8.2, libgnuradio-iio3.10.10, libgnuradio-iio3.10.5, libgnuradio-iio3.10.9, libgnuradio-iio3.10.9t64, libgnuradio-network3.10.10, libgnuradio-network3.10.5, libgnuradio-network3.10.9, libgnuradio-network3.10.9t64, libgnuradio-noaa3.7.13, libgnuradio-pager3.7.13, libgnuradio-pdu3.10.10, libgnuradio-pdu3.10.5, libgnuradio-pdu3.10.9, libgnuradio-pdu3.10.9t64, libgnuradio-pmt3.10.10, libgnuradio-pmt3.10.5, libgnuradio-pmt3.10.9, libgnuradio-pmt3.10.9t64, libgnuradio-pmt3.7.13, libgnuradio-pmt3.8.2, libgnuradio-qtgui3.10.10, libgnuradio-qtgui3.10.5, libgnuradio-qtgui3.10.9, libgnuradio-qtgui3.10.9t64, libgnuradio-qtgui3.7.13, libgnuradio-qtgui3.8.2, libgnuradio-runtime3.10.10, libgnuradio-runtime3.10.5, libgnuradio-runtime3.10.9, libgnuradio-runtime3.10.9t64, libgnuradio-runtime3.7.13, libgnuradio-runtime3.8.2, libgnuradio-soapy3.10.10, libgnuradio-soapy3.10.5, libgnuradio-soapy3.10.9, libgnuradio-soapy3.10.9t64, libgnuradio-trellis3.10.10, libgnuradio-trellis3.10.5, libgnuradio-trellis3.10.9, libgnuradio-trellis3.10.9t64, libgnuradio-trellis3.7.13, libgnuradio-trellis3.8.2, libgnuradio-uhd3.10.10, libgnuradio-uhd3.10.5, libgnuradio-uhd3.10.9, libgnuradio-uhd3.10.9t64, libgnuradio-uhd3.7.13, libgnuradio-uhd3.8.2, libgnuradio-video-sdl3.10.10, libgnuradio-video-sdl3.10.5, libgnuradio-video-sdl3.10.9, libgnuradio-video-sdl3.10.9t64, libgnuradio-video-sdl3.7.13, libgnuradio-video-sdl3.8.2, libgnuradio-vocoder3.10.10, libgnuradio-vocoder3.10.5, libgnuradio-vocoder3.10.9, libgnuradio-vocoder3.10.9t64, libgnuradio-vocoder3.7.13, libgnuradio-vocoder3.8.2, libgnuradio-wavelet3.10.10, libgnuradio-wavelet3.10.5, libgnuradio-wavelet3.10.9, libgnuradio-wavelet3.10.9t64, libgnuradio-wavelet3.7.13, libgnuradio-wavelet3.8.2, libgnuradio-wxgui3.7.13, libgnuradio-zeromq3.10.10, libgnuradio-zeromq3.10.5, libgnuradio-zeromq3.10.9, libgnuradio-zeromq3.10.9t64, libgnuradio-zeromq3.7.13, libgnuradio-zeromq3.8.2.
You might like to refer to the gnuradio package page, or to the Package Tracking System.
If you find a bug not listed here, please report it.