components/multimedia/lame/patches/03-bits_per_sample.patch

   1 Description: Avoid malformed wav causing floating point exception (integer divide by zero)
   2 Author: Fabian Greffrath <fabian+debian@greffrath.com>
   3 Bug-Debian: https://bugs.debian.org/777159
   4
   5 --- a/frontend/get_audio.c
   6 +++ b/frontend/get_audio.c
   7 @@ -1448,6 +1448,10 @@ parse_wave_header(lame_global_flags * gf
   8          else {
   9              (void) lame_set_in_samplerate(gfp, global_reader.input_samplerate);
  10          }
  11 +        /* avoid division by zero */
  12 +        if (bits_per_sample < 1)
  13 +            return -1;
  14 +
  15          global. pcmbitwidth = bits_per_sample;
  16          global. pcm_is_unsigned_8bit = 1;
  17          global. pcm_is_ieee_float = (format_tag == WAVE_FORMAT_IEEE_FLOAT ? 1 : 0);