Fixes: shift exponent -2 is negative
Fixes: 17736/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PCM_F16LE_fuzzer-5742815929171968
Fixes: 17998/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PCM_F24LE_fuzzer-5716980383875072
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
break;
case AV_CODEC_ID_PCM_F16LE:
case AV_CODEC_ID_PCM_F24LE:
+ if (avctx->bits_per_coded_sample < 1 || avctx->bits_per_coded_sample > 24)
+ return AVERROR_INVALIDDATA;
+
s->scale = 1. / (1 << (avctx->bits_per_coded_sample - 1));
s->fdsp = avpriv_float_dsp_alloc(0);
if (!s->fdsp)