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[Bug 668348] echo "xy" > /dev/tcp/host/port bash feature triggers kernel oops in __ioremap

https://bugzilla.novell.com/show_bug.cgi?id=668348

https://bugzilla.novell.com/show_bug.cgi?id=668348#c11


Thomas Renninger <trenn@xxxxxxxxxx> changed:

What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |INVALID

--- Comment #11 from Thomas Renninger <trenn@xxxxxxxxxx> 2011-02-02 11:57:33
UTC ---
Oh dear...
echo -ne "HELLO 0.0.0\nREGENERATE MOTD krommer.arch.suse.de"
/dev/tcp/music.arch.suse.de/5555
sends a command to the orthos server which triggers another script to get
executed remotely on this machine. This script tries to mount all partitions
from /proc/partitions and searches for valid installations to spread a motd
like:
# This machine is reserved by...

This explains the file system activity with above command :)
I am going to close this one invalid and will open a bug related to the file
system.

The oops in kdump case is another issue which looks related to IOMMU and trying
to copy IO back-uped memory. I'll open another bug and tell AMD about it...

Sorry for the noise.

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