Arbitrary Code Execution

KVM Kernel-based Virtual Machine is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm package provides the user-space component for running virtual machines using KVM. Multiple buffer overflow, input validation, and out-of-bounds write flaws were found in the wa...

Overcoming OpenStack Obstacles for vCDN at the Edge

Akamai and Wind River have collaborated to provide a validated, joint solution for virtual CDN services delivered with the reliability, scalability, and edge-optimized footprint that are required for cost-effective deployments in telecom networks. As the competition for viewers continues to heat...

How to troubleshoot common SR-IOV related issues

This article explains how to troubleshoot common SR-IOV Network related issues...

How to Use SR-IOV Feature in XenServer

This article describes following items. How to configure SR-IOV Network How to create SR-IOV VLAN network How to assign SR-IOV Network to a VM How to destroy SR-IOV Network Additional steps for NICs that use a legacy driver...

kernel: memory leak when merging buffers in SCSI IO vectors

It was found that in the Linux kernel through v4.14-rc5, biomapuseriov and biounmapuser in 'block/bio.c' do unbalanced pages refcounting if IO vector has small consecutive buffers belonging to the same page. bioaddpcpage merges them into one, but the page reference is never dropped, causing a...

CVE-2015-1142857

On multiple SR-IOV cars it is possible for VF's assigned to guests to send ethernet flow control pause frames via the PF. This includes Linux kernel ixgbe driver before commit f079fa005aae08ee0e1bc32699874ff4f02e11c1, the Linux Kernel i40e/i40evf driver before...

Design/Logic Flaw

On multiple SR-IOV cars it is possible for VF's assigned to guests to send ethernet flow control pause frames via the PF. This includes Linux kernel ixgbe driver before commit f079fa005aae08ee0e1bc32699874ff4f02e11c1, the Linux Kernel i40e/i40evf driver before...

CVE-2015-1142857

CVE-2015-1142857 describes a network-virtualization flaw where VFs assigned to guests can cause ethernet flow-control pause frames to be sent via the PF on SR-IOV NICs. The vulnerability affects multiple drivers and firmware families: Linux ixgbe (before commit f079fa005aae08ee0e1bc32699874ff4f02...

CVE-2015-1142857

On multiple SR-IOV cars it is possible for VF's assigned to guests to send ethernet flow control pause frames via the PF. This includes Linux kernel ixgbe driver before commit f079fa005aae08ee0e1bc32699874ff4f02e11c1, the Linux Kernel i40e/i40evf driver before...

UBUNTU-CVE-2017-12190

The biomapuseriov and biounmapuser functions in block/bio.c in the Linux kernel before 4.13.8 do unbalanced refcounting when a SCSI I/O vector has small consecutive buffers belonging to the same page. The bioaddpcpage function merges them into one, but the page reference is never dropped. This...

Null pointer dereference

The v9fsiovvunmarshal function in fsdev/9p-iov-marshal.c in QEMU aka Quick Emulator allows local guest OS administrators to cause a denial of service NULL pointer dereference and QEMU process crash by sending an empty string parameter to a 9P operation...

UBUNTU-CVE-2016-8578

The v9fsiovvunmarshal function in fsdev/9p-iov-marshal.c in QEMU aka Quick Emulator allows local guest OS administrators to cause a denial of service NULL pointer dereference and QEMU process crash by sending an empty string parameter to a 9P operation...

Qemu: net: e1000 infinite loop in start_xmit and e1000_receive_iov routines

An infinite loop flaw was found in the way QEMU's e1000 NIC emulation implementation processed data using transmit or receive descriptors under certain conditions. A privileged user inside a guest could use this flaw to crash the QEMU instance...

CVE-2015-8785

The fusefillwritepages function in fs/fuse/file.c in the Linux kernel before 4.4 allows local users to cause a denial of service infinite loop via a writev system call that triggers a zero length for the first segment of an iov...

DEBIAN-CVE-2015-8785

The fusefillwritepages function in fs/fuse/file.c in the Linux kernel before 4.4 allows local users to cause a denial of service infinite loop via a writev system call that triggers a zero length for the first segment of an iov...

CVE-2015-8785

The fusefillwritepages function in fs/fuse/file.c in the Linux kernel before 4.4 allows local users to cause a denial of service infinite loop via a writev system call that triggers a zero length for the first segment of an iov...

UBUNTU-CVE-2015-8785

The fusefillwritepages function in fs/fuse/file.c in the Linux kernel before 4.4 allows local users to cause a denial of service infinite loop via a writev system call that triggers a zero length for the first segment of an iov...

Important: Red Hat Security Advisory: kernel security, bug fix, and enhancement update

Updated kernel packages that fix three security issues, several bugs, and one enhancement are now available for Red Hat Enterprise Linux 7.1 Extended Update Support. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System CVSS base...

How to Disable SR-IOV on Emulex CNA\HBA on HP Hosts Running XenServer 6.5

To Disable SR-IOV on Emulex CNA\HBA...

Potential Vulnerability with Intel® LAN Products with SR-IOV

Summary: A potential issue impacting Intel® LAN products with SR-IOV capability is expected to be publicly disclosed by security researchers at an industry conference on August 13, 2015. Description: In Intel® LAN products with SR-IOV capability, the potential exists where, under specific...