On Thu, Nov 21, 2019 at 11:26:12PM +0100, Michael Niedermayer wrote: > Fixes: signed integer overflow: -2147483648 - 13 cannot be represented in > type 'int' > Fixes: > 18893/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ADPCM_IMA_APC_fuzzer-5630760442920960 > > Found-by: continuous fuzzing process > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > --- > libavcodec/adpcm.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/libavcodec/adpcm.c b/libavcodec/adpcm.c > index edf7052636..d3919288b1 100644 > --- a/libavcodec/adpcm.c > +++ b/libavcodec/adpcm.c > @@ -140,8 +140,8 @@ static av_cold int adpcm_decode_init(AVCodecContext * > avctx) > break; > case AV_CODEC_ID_ADPCM_IMA_APC: > if (avctx->extradata && avctx->extradata_size >= 8) { > - c->status[0].predictor = AV_RL32(avctx->extradata); > - c->status[1].predictor = AV_RL32(avctx->extradata + 4); > + c->status[0].predictor = av_clip_intp2(AV_RL32(avctx->extradata > ), 18); > + c->status[1].predictor = av_clip_intp2(AV_RL32(avctx->extradata > + 4), 18);
18 is 16? I understand c->status[i].predictor is 16bit. > } > break; > case AV_CODEC_ID_ADPCM_IMA_WS: > -- > 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". _______________________________________________ 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".
