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avformat/swfdec: Fix inflate() error code check

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Fixes infinite loop
Fixes endless.poc

Found-by: 连一汉 <lianyihan@360.cn>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit a453bbb68f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2016-08-19 10:28:22 +02:00
parent afd57722e1
commit 4770eac663
1 changed files with 2 additions and 2 deletions
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4
libavformat/swfdec.c
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@@ -119,10 +119,10 @@ retry:
z->avail_out = buf_size;
ret = inflate(z, Z_NO_FLUSH);
if (ret < 0)
return AVERROR(EINVAL);
if (ret == Z_STREAM_END)
return AVERROR_EOF;
if (ret != Z_OK)
return AVERROR(EINVAL);
if (buf_size - z->avail_out == 0)
goto retry;