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Chinese hackers have unleashed a never-before-seen Linux backdoor
(arstechnica.com)
This is a most excellent place for technology news and articles.
In general the users should not worry about kernel vulnerabilites because of the built in security in Linux and because the desktop is a much smaller target.
As other people write: Keep to trusted sources (like your distributions own repo) and you should be all right.
It's the Linux servers that should take note and apply patches.