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| author | Michael Niedermayer <michael@niedermayer.cc> | 2024-09-22 23:15:35 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2024-09-24 15:37:20 +0200 |
| commit | 56bef2fd58d0ed30dbe940083c30ada2b0404491 (patch) | |
| tree | 295d1bf5b923a51118b5ff5f829387378ffc9fb7 | |
| parent | 03050a0d9092c57757a10b9e3c96e89e047d25bc (diff) | |
| download | ffmpeg-56bef2fd58d0ed30dbe940083c30ada2b0404491.tar.gz | |
avcodec/xan: Add basic input size check
Fixes: Timeout
Fixes: 71739/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_XAN_WC3_fuzzer-6170301405134848
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpe
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/xan.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/xan.c b/libavcodec/xan.c index cc0ecea5eb..56675dbbb1 100644 --- a/libavcodec/xan.c +++ b/libavcodec/xan.c @@ -607,6 +607,9 @@ static int xan_decode_frame(AVCodecContext *avctx, AVFrame *frame, return AVERROR_INVALIDDATA; } + if (buf_size < 9) + return AVERROR_INVALIDDATA; + if ((ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF)) < 0) return ret; |