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[Xen-bugs] [Bug 289] New: Xenstore Full bug


           Summary: Xenstore Full bug
           Product: Xen
           Version: unstable
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Tools
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: jyoung5@xxxxxxxxxx

    Today Xen store does not limit the amount of entries a domain can add. A
malicious domain could add any number of entires into Xenstore causing the
filesystem hosting the store directory to fill completely. This would cause a
large number of xenstored ops to fail as it will likely result in a xenstored
curruption being triggered ( and xenstored will exit). When xenstored is not
running, all domains will stopp functioning properly.

Possible Solution:
     A per-domain quta system or some other mechanism to ensure that malicious
domains do no prevent other domains from functioning.

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