avformat/swfdec: Fix inflate() error code check

Fixes infinite loop
Fixes endless.poc

Found-by: 连一汉 <lianyihan@360.cn>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2016-08-19 10:28:22 +02:00
parent 2a3720bc22
commit a453bbb68f

View File

@ -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;