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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-07-13 20:16:19 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-01-06 11:30:42 +0100 |
| commit | 4b335031d0cae89a2e2e7158409cc34baf3851ea (patch) | |
| tree | c32ca01b9ad2c17a10e489ed2bcc723160225715 | |
| parent | 14df7f8cbcc04b3b63812e1d367c82049cf8815f (diff) | |
| download | ffmpeg-4b335031d0cae89a2e2e7158409cc34baf3851ea.tar.gz | |
avcodec/clearvideo: fix invalid shift in tile size check
Fixes: left shift of 1 by 31 places cannot be represented in type 'int'
Fixes: 15631/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CLEARVIDEO_fuzzer-5690110605000704
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 5dc94924d0fbdedba4356c21ec7de0347b8e4757)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/clearvideo.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/clearvideo.c b/libavcodec/clearvideo.c index 82df8f3752..26cdfb2731 100644 --- a/libavcodec/clearvideo.c +++ b/libavcodec/clearvideo.c @@ -665,7 +665,7 @@ static av_cold int clv_decode_init(AVCodecContext *avctx) } c->tile_shift = av_log2(c->tile_size); - if (1 << c->tile_shift != c->tile_size) { + if (1U << c->tile_shift != c->tile_size) { av_log(avctx, AV_LOG_ERROR, "Tile size: %d, is not power of 2.\n", c->tile_size); return AVERROR_INVALIDDATA; } |