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The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to generate a continuous stream of WARN messages and cause a denial of service (disk consumption) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and XEN_PCI_OP_enable_msi operations, aka "Linux pciback missing sanity checks."
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade linux-grsecUpgrade xenUpgrade qemuUpgrade linux-vanilla. | Aug 30, 2017 | Dec 17, 2015 |
| Debian | — | Upgrade linux | Feb 2, 2016 | Jan 5, 2016 |
| Gentoo Linux | — | Upgrade app-emulation/xen-tools.Upgrade app-emulation/pvgrub.Upgrade app-emulation/xen-pvgrub.Upgrade app-emulation/xen. | Oct 30, 2017 | Apr 13, 2016 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Dec 17, 2015 |
| Suse | — | Upgrade kernel-ec2-develUpgrade kernel-ec2Upgrade kernel-defaultUpgrade kernel-ec2-extraUpgrade kernel-docsUpgrade kernel-obs-build | Feb 2, 2016 | Jan 19, 2016 |
| Ubuntu | — | Upgrade linux-image-3.13.0-74-powerpc-e500Upgrade linux-image-3.2.0-97-generic-paeUpgrade linux-image-3.2.0-97-powerpc-smpUpgrade linux-image-3.19.0-42-lowlatencyUpgrade linux-image-4.2.0-22-generic-lpaeUpgrade linux-image-3.2.0-97-omapUpgrade linux-image-4.2.0-22-powerpc-e500mcUpgrade linux-image-3.16.0-57-powerpc64-smpUpgrade linux-image-3.13.0-74-powerpc-smpUpgrade linux-image-3.16.0-57-powerpc64-embUpgrade linux-image-4.2.0-22-powerpc64-embUpgrade linux-image-4.2.0-22-genericUpgrade linux-image-3.19.0-42-generic-lpaeUpgrade linux-image-3.13.0-74-powerpc64-embUpgrade linux-image-3.13.0-74-lowlatencyUpgrade linux-image-3.13.0-74-powerpc-e500mcUpgrade linux-image-3.2.0-97-virtualUpgrade linux-image-3.19.0-42-powerpc-e500mcUpgrade linux-image-3.16.0-57-powerpc-smpUpgrade linux-image-3.19.0-42-powerpc64-smpUpgrade linux-image-3.19.0-42-powerpc64-embUpgrade linux-image-3.19.0-42-powerpc-smpUpgrade linux-image-3.13.0-74-powerpc64-smpUpgrade linux-image-3.2.0-97-powerpc64-smpUpgrade linux-image-3.19.0-42-genericUpgrade linux-image-4.2.0-22-lowlatencyUpgrade linux-image-3.2.0-97-genericUpgrade linux-image-4.2.0-22-powerpc-smpUpgrade linux-image-3.13.0-74-genericUpgrade linux-image-3.16.0-57-genericUpgrade linux-image-3.16.0-57-lowlatencyUpgrade linux-image-3.16.0-57-powerpc-e500mcUpgrade linux-image-3.13.0-74-generic-lpaeUpgrade linux-image-4.2.0-22-powerpc64-smpUpgrade linux-image-3.16.0-57-generic-lpaeUpgrade linux-image-3.2.0-97-highbank | Jan 4, 2016 | Dec 20, 2015 |
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