Gentoo Websites Logo
Go to: Gentoo Home Documentation Forums Lists Bugs Planet Store Wiki Get Gentoo!
Bug 607808 (CVE-2017-2596) - Kernel: kvm: page reference leakage in handle_vmon
Summary: Kernel: kvm: page reference leakage in handle_vmon
Alias: CVE-2017-2596
Product: Gentoo Security
Classification: Unclassified
Component: Kernel (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Gentoo Kernel Security
Whiteboard: A3 [ebuild]
Depends on:
Reported: 2017-01-31 14:29 UTC by Francis Booth
Modified: 2017-01-31 14:35 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


Note You need to log in before you can comment on or make changes to this bug.
Description Francis Booth 2017-01-31 14:29:36 UTC
Linux kernel built with the KVM virtualisation support(CONFIG_KVM), with nested virtualisation(nVMX) feature enabled(nested=1), is vulnerable to host memory leakage issue. It could occur while emulating VMXON instruction in 'handle_vmon'.

A L1 guest user could use this flaw to leak host memory potentially resulting in DoS.

Upstream patch:


~ eleix (Security Padawan)

Reproducible: Didn't try