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Marios Pomonis c926f2f723 KVM: x86: Protect exit_reason from being used in Spectre-v1/L1TF attacks 
This fixes a Spectre-v1/L1TF vulnerability in vmx_handle_exit().
While exit_reason is set by the hardware and therefore should not be
attacker-influenced, an unknown exit_reason could potentially be used to
perform such an attack.

Fixes: 55d2375e58 ("KVM: nVMX: Move nested code to dedicated files")

Signed-off-by: Marios Pomonis <pomonis@google.com>
Signed-off-by: Nick Finco <nifi@google.com>
Suggested-by: Sean Christopherson <sean.j.christopherson@intel.com>
Reviewed-by: Andrew Honig <ahonig@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-27 19:59:42 +01:00
arch KVM: x86: Protect exit_reason from being used in Spectre-v1/L1TF attacks 2020-01-27 19:59:42 +01:00
block
certs
crypto
Documentation
drivers
fs
include KVM: Drop kvm_arch_vcpu_init() and kvm_arch_vcpu_uninit() 2020-01-27 19:59:33 +01:00
init
ipc
kernel
lib
LICENSES
mm
net
samples
scripts
security
sound
tools tools/kvm_stat: Fix kvm_exit filter name 2020-01-23 09:51:06 +01:00
usr
virt KVM: Move vcpu->run page allocation out of kvm_vcpu_init() 2020-01-27 19:59:34 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
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COPYING
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Makefile
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.