Right, that's the problem that was mentioned before: rsyslog needs to
check if it can read from /proc/kmsg as non-root, and not drop
privileges if not. In other works, seteuid(), read() -> on fail,
seteuid(0) and keep it that way, on success -> setuid() -> permanently
drop privs.

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Drop the dd process
https://bugs.launchpad.net/bugs/517773
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