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Parallels Cloud Server 6.0 Update 6 Hotfix 9 (6.0.6-2006)

Last Updated: Sep 08, 2016 03:21PM UTC
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Synopsis:          A Parallels Cloud Server 6.0 kernel update
                   introducing security, stability, and usability
                   fixes.
Product:           Parallels Cloud Server 6.0
Keywords:          'bugfix' 'security' 'stability' 'usability'
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1. What's Included in This Update
 
This update includes a new Parallels Cloud Server 6.0 kernel (2.6.32-042stab092.1) based on the Red Hat Enterprise Linux 6.5 kernel (2.6.32-431.20.3.el6). The new kernel introduces security, stability, and usability fixes.
 
2. Bug Fixes

- Virtual machines created from shared templates remained in the invalid state after creation (#PSBM-27831).
 
- Online migration of an active packet socket could fail with the message "CPT ERR: page without mapping". Checkpointing code has been enhanced to support online migration of packet sockets. (#PSBM-24091)
 
- Online Container migration could fail if files from /proc/$PID/ were still open after the process with PID $PID had stopped. (#PSBM-25452)
 
- HP Performance Agent could fail due to the absence of the /proc/sysvipc/msg file. The SYSVIPC procfs interface has been provided, so the /proc/sysvipc/{msg,sem,shm} files are now available. (#PSBM-26563)
 
- Certain netfilter kernel modules (nf_nat, nf_conntrack_ipv4, nf_conntrack_ipv6) could not be loaded automatically if requested from inside Containers. (#PSBM-26669)
 
- The top utility run inside a Container could show confusing equal values of used CPU power for every CPU available inside that Container; even though the total CPU power used inside the Container was shown correctly. (#PSBM-26714)
 
- The iproute2 utility could show netlink warnings in the log. For example, "[2532930.556624] netlink: 20 bytes leftover after parsing attributes". (#PSBM-26757)
 
- A kernel panic could occur due to a race between bridge device deletion and packet forwarding. (#PSBM-26931)
 
- A Hardware Node with hundreds of gigabytes of RAM could suffer from high memory and CPU latencies (as displayed by vzstat or pstat) if the vzstat.ko kernel module was loaded. (#PSBM-26984)
 
- A Container could fail to start if its configuration file contained an empty IPTABLES parameter and the iptable_raw kernel module was loaded on the Hardware Node. (#PSBM-27181)
 
- Under certain circumstances, a kernel panic could occur in dquot_initialize() under heavy disk I/O load and with quotas enabled. (#PSBM-27506)
 
- Under certain circumstances, a soft CPU lockup could occur in case of high memory pressure inside a Container and OOM killer activity. (#PSBM-27508)
 
- Online migration of a Container with nested bindmounts could fail with an error during restore. In particular, this issue affected Containers running cPanel as well as Fedora 17 and newer. (#PSBM-27525)
 
- Checkpointing mechanism could not handle silly-renamed files if SimFS was used over NFS. (#OVZ-2242)
 
- An attempt to run a KVM VM could fail due to insufficient permissions while accessing a device. (#OVZ-2915)
 
- Under certain circumstances, PID allocation code deficiency could lead to a Hardware Node crash. (#OVZ-2983)
 
3. Obtaining the Update
 
You can download and install the update using the yum utility included in the Parallels Cloud Server 6.0 distribution.
 
4. References
 
https://rhn.redhat.com/errata/RHSA-2014-0771.html
 
https://www.redhat.com/security/data/cve/CVE-2013-6378.html
https://www.redhat.com/security/data/cve/CVE-2014-0203.html
https://www.redhat.com/security/data/cve/CVE-2014-1737.html
https://www.redhat.com/security/data/cve/CVE-2014-1738.html
https://www.redhat.com/security/data/cve/CVE-2014-1874.html
https://www.redhat.com/security/data/cve/CVE-2014-2039.html
 
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