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| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-12-15 00:10:17 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-12-16 09:49:07 +0100 |
| commit | 092cb17983b2660b4e050a05c739060f8e03d27a (patch) | |
| tree | 259ffc9709a62cdb6b5bcdae03f696bff5ee07c6 /libavcodec/rasc.c | |
| parent | b11b3d2585cda24e60160070f10f5d70a8c42fbf (diff) | |
| download | ffmpeg-streaming-092cb17983b2660b4e050a05c739060f8e03d27a.zip ffmpeg-streaming-092cb17983b2660b4e050a05c739060f8e03d27a.tar.gz | |
avcodec/rasc: Check that the number of moves is less than or equal the number of pixels
Fixes: OOM
Fixes: 10307/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RASC_fuzzer-5393974559244288
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/rasc.c')
| -rw-r--r-- | libavcodec/rasc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/rasc.c b/libavcodec/rasc.c index 67351df..1b607ac 100644 --- a/libavcodec/rasc.c +++ b/libavcodec/rasc.c @@ -215,7 +215,7 @@ static int decode_move(AVCodecContext *avctx, bytestream2_skip(gb, 8); compression = bytestream2_get_le32(gb); - if (nb_moves > INT32_MAX / 16) + if (nb_moves > INT32_MAX / 16 || nb_moves > avctx->width * avctx->height) return AVERROR_INVALIDDATA; uncompressed_size = 16 * nb_moves; |
