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avcodec/argo: Move U, fix shift 

Fixes: left shift of 255 by 24 places cannot be represented in type 'int'
Fixes: 37249/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ARGO_fuzzer-5754862984888320

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>
This commit is contained in:
Michael Niedermayer 2021-09-03 17:12:53 +02:00
parent 0c87b43c6c
commit 26659fe53e
1 changed files with 1 additions and 1 deletions
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2
libavcodec/argo.c
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@ -58,7 +58,7 @@ static int decode_pal8(AVCodecContext *avctx, uint32_t *pal)
return AVERROR_INVALIDDATA;
for (int i = 0; i < count; i++)
pal[start + i] = (0xFF << 24U) | bytestream2_get_be24u(gb);
pal[start + i] = (0xFFU << 24) | bytestream2_get_be24u(gb);
return 0;
}