mirror of https://git.ffmpeg.org/ffmpeg.git
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>
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@ -665,7 +665,7 @@ static av_cold int clv_decode_init(AVCodecContext *avctx)
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}
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c->tile_shift = av_log2(c->tile_size);
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if (1 << c->tile_shift != c->tile_size) {
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if (1U << c->tile_shift != c->tile_size) {
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av_log(avctx, AV_LOG_ERROR, "Tile size: %d, is not power of 2.\n", c->tile_size);
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return AVERROR_INVALIDDATA;
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}
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