Fixes: shift exponent -2 is negative Fixes: 17736/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PCM_F16LE_fuzzer-5742815929171968
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/pcm.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/pcm.c b/libavcodec/pcm.c index 83850cc793..abd61e281c 100644 --- a/libavcodec/pcm.c +++ b/libavcodec/pcm.c @@ -264,6 +264,9 @@ static av_cold int pcm_decode_init(AVCodecContext *avctx) break; case AV_CODEC_ID_PCM_F16LE: case AV_CODEC_ID_PCM_F24LE: + if (avctx->bits_per_coded_sample < 1) + return AVERROR_INVALIDDATA; + s->scale = 1. / (1 << (avctx->bits_per_coded_sample - 1)); s->fdsp = avpriv_float_dsp_alloc(0); if (!s->fdsp) -- 2.23.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
