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[FD] [CSS] POINTYFEATHER / tar extract pathname bypass (CVE-2016-6321) - patch update

Update on the advisory: As pointed out by several people, the ERROR
macro did't fail the operation in a desired way: Files were still
being created by tar. In order to really stop tar from doing silly
things, FATAL_ERROR macro needs to be used instead.

The patch has now been updated accordingly.

Updated Advisory: https://sintonen.fi/advisories/tar-extract-pathname-bypass.proper.txt

Updated Patch:

NOTE: Ideas on how to make tar safely skip such entries instead of
failing the whole operating are welcome.

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