Fixes: index 32 out of bounds for type 'int [32]' Fixes: 18350/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ATRAC3P_fuzzer-5643794862571520
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/atrac3plus.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavcodec/atrac3plus.c b/libavcodec/atrac3plus.c index 9f964efb4d..8d17889582 100644 --- a/libavcodec/atrac3plus.c +++ b/libavcodec/atrac3plus.c @@ -456,6 +456,10 @@ static int decode_channel_wordlen(GetBitContext *gb, Atrac3pChanUnitCtx *ctx, } else if (chan->fill_mode == 3) { pos = ch_num ? chan->num_coded_vals + chan->split_point : ctx->num_quant_units - chan->split_point; + if (pos > FF_ARRAY_ELEMS(chan->qu_wordlen)) { + av_log(avctx, AV_LOG_ERROR, "Split point beyond array\n"); + pos = FF_ARRAY_ELEMS(chan->qu_wordlen); + } for (i = chan->num_coded_vals; i < pos; i++) chan->qu_wordlen[i] = 1; } -- 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".
