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| author | Michael Niedermayer <michael@niedermayer.cc> | 2023-11-08 01:44:07 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2023-11-10 00:14:02 +0100 |
| commit | bb0a684d93f793457f7bff3940a1398eb9e91703 (patch) | |
| tree | 58b98742abaa9eea5dcd5da8057bd5cb815e0aa2 /libavcodec | |
| parent | 19fcf4313148e86aa47d81a8d5d5e8d056f1f906 (diff) | |
| download | ffmpeg-bb0a684d93f793457f7bff3940a1398eb9e91703.tar.gz | |
avcodec/4xm: Check for cfrm exhaustion
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 <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/4xm.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/4xm.c b/libavcodec/4xm.c index 158b37a38b..cfe65c178a 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; } |