On 1/11/23, Michael Niedermayer <mich...@niedermayer.cc> wrote: > Fixes: out of array read > Fixes: > 48567/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_BONK_fuzzer-6739246658748416 > > Note: This issue was assigned to a unrelated theora bug > > Found-by: continuous fuzzing process > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > --- > libavcodec/bonk.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/libavcodec/bonk.c b/libavcodec/bonk.c > index 9e176d5477..061cc69a58 100644 > --- a/libavcodec/bonk.c > +++ b/libavcodec/bonk.c > @@ -101,6 +101,10 @@ static av_cold int bonk_init(AVCodecContext *avctx) > s->samples_per_packet = AV_RL16(avctx->extradata + 15); > if (!s->samples_per_packet) > return AVERROR(EINVAL); > + > + if (s->down_sampling * s->samples_per_packet < s->n_taps) > + return AVERROR_INVALIDDATA; > + > s->max_framesize = s->samples_per_packet * avctx->ch_layout.nb_channels > * s->down_sampling * 16LL; > if (s->max_framesize > (INT32_MAX - AV_INPUT_BUFFER_PADDING_SIZE) / 8) > return AVERROR_INVALIDDATA; > -- > 2.17.1
LGTM > > _______________________________________________ > 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".
