If no segment has a tile, the segment count really should be 0 Fixes: Timeout (61sec -> 2sec) Fixes: 25445/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ARBC_fuzzer-5657711222718464
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/arbc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/arbc.c b/libavcodec/arbc.c index 06970f140b..9d8284df2b 100644 --- a/libavcodec/arbc.c +++ b/libavcodec/arbc.c @@ -133,7 +133,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, if (nb_segments == 0) return avpkt->size; - if (7 * nb_segments > bytestream2_get_bytes_left(&s->gb)) + if (7 * nb_segments + 6 > bytestream2_get_bytes_left(&s->gb)) return AVERROR_INVALIDDATA; if ((ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF)) < 0) -- 2.17.1 _______________________________________________ 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".
