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トップ  >  Linux12歩  >  2012-08-11 xenのupdate
20120811 xen-4.1.3にupdateしました


release note

Xen 4.1.3 is a maintenance release in the 4.1 series and contains:

    Fixes for the following critical vulnerabilities: We recommend all users of the 4.0 and 4.1 stable series to update to these latest point releases.
        CVE-2012-0217 / XSA-7: PV guest privilege escalation vulnerability
        CVE-2012-0218 / XSA-8: guest denial of service on syscall/sysenter exception generation
        CVE-2012-2934 / XSA-9: PV guest host Denial of Service
        CVE-2012-3432 / XSA-10: HVM guest user mode MMIO emulation DoS vulnerability
        CVE-2012-3433 / XSA-11: HVM guest destroy p2m teardown host DoS vulnerabilit
    Among many bug fixes and improvements (over 100 since Xen 4.1.2). Highlights are:
        Updates for the latest Intel/AMD CPU revisions
        Bug fixes and improvements to the libxl tool stack
        Bug fixes for IOMMU handling (device passthrough to HVM guests)
        Bug fixes for host kexec/kdump

It also contains the following fixes from earlier maintenance releases:

    Security fixes including CVE-2011-1583 and CVE-2011-1898
    Enhancements to guest introspection (VM single stepping support for very fine-grained access control)
    Many stability improvements, such as:
        PV-on-HVM stability fixes (fixing some IRQ issues)
        XSAVE cpu feature support for PV guests (allows safe use of latest multimedia instructions)
        RAS fixes for high availability
        fixes for offlining bad pages
        changes to libxc, mainly of benefit to libvirt
        New XL toolstack
        Debug support: kexec/kdump
        Remus (High Availability)
        Device passthrough to HVM guests
        Interrupt handling
        Support for Supervisor Mode Execution Protection (SMEP)
    Compatibility fixes for newer Linux guests, newer compilers, some old guest savefiles, newer Python, grub2, some hardware/BIOS bugs.
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