Fixes: left shift of 21378748 by 10 places cannot be represented in type 'int' Fixes: 26449/clusterfuzz-testcase-minimized-ffmpeg_dem_MVI_fuzzer-5680463374712832
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavformat/mvi.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavformat/mvi.c b/libavformat/mvi.c index ff5c08bf51..06c9cfe3f0 100644 --- a/libavformat/mvi.c +++ b/libavformat/mvi.c @@ -123,6 +123,8 @@ static int read_packet(AVFormatContext *s, AVPacket *pkt) count = (mvi->audio_size_counter + mvi->audio_frame_size + 512) >> MVI_FRAC_BITS; if (count > mvi->audio_size_left) count = mvi->audio_size_left; + if ((int64_t)count << MVI_FRAC_BITS > INT_MAX) + return AVERROR_INVALIDDATA; if ((ret = av_get_packet(pb, pkt, count)) < 0) return ret; pkt->stream_index = MVI_AUDIO_STREAM_INDEX; -- 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".
