CVE-2015-2150 Information

Description

Xen 3.3.x through 4.5.x and the Linux kernel through 3.19.1 do not properly restrict access to PCI command registers which might allow local guest OS users to cause a denial of service (non-maskable interrupt and host crash) by disabling the (1) memory or (2) I/O decoding for a PCI Express device and then accessing the device which triggers an Unsupported Request (UR) response.

Reference

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=af6fc858a35b90e89ea7a7ee58e66628c55c776b http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155804.html http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155854.html http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155908.html http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152747.html http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html http://www.debian.org/security/2015/dsa-3237 http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html http://www.securityfocus.com/bid/73014 http://www.securitytracker.com/id/1031806 http://www.securitytracker.com/id/1031902 http://www.ubuntu.com/usn/USN-2631-1 http://www.ubuntu.com/usn/USN-2632-1 http://www1.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-423503.htm http://xenbits.xen.org/xsa/advisory-120.html https://bugzilla.redhat.com/show_bug.cgi?id=1196266 https://github.com/torvalds/linux/commit/af6fc858a35b90e89ea7a7ee58e66628c55c776b https://seclists.org/bugtraq/2019/Aug/18