Fixes: index -1 out of bounds for type 'CFrameBuffer [100]' Fixes: 63877/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FOURXM_fuzzer-5854263397711872
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/4xm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/4xm.c b/libavcodec/4xm.c index 158b37a38bc..cfe65c178a4 100644 --- a/libavcodec/4xm.c +++ b/libavcodec/4xm.c @@ -885,6 +885,8 @@ static int decode_frame(AVCodecContext *avctx, AVFrame *picture, } if (i >= CFRAME_BUFFER_COUNT) { + if (free_index < 0) + return AVERROR_INVALIDDATA; i = free_index; f->cfrm[i].id = id; } -- 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".
