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| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-12-05 02:18:51 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-12-14 23:24:20 +0100 |
| commit | 52ba824c65817c1db6aad41c470dde7162252036 (patch) | |
| tree | 6932ec3bcd6c0040091b4a127ad44373ac93671e | |
| parent | 6bfc935232fbdb584abef0ec4560be00c5797f46 (diff) | |
| download | ffmpeg-52ba824c65817c1db6aad41c470dde7162252036.tar.gz | |
avcodec/rasc: Check input space before reading chunk
Fixes: Timeout
Fixes: 11118/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RASC_fuzzer-5652564066959360
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/rasc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/rasc.c b/libavcodec/rasc.c index e8e0740ddd..67351dfd19 100644 --- a/libavcodec/rasc.c +++ b/libavcodec/rasc.c @@ -680,6 +680,9 @@ static int decode_frame(AVCodecContext *avctx, while (bytestream2_get_bytes_left(gb) > 0) { unsigned type, size = 0; + if (bytestream2_get_bytes_left(gb) < 8) + return AVERROR_INVALIDDATA; + type = bytestream2_get_le32(gb); if (type == KBND || type == BNDL) { intra = type == KBND; |