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Jan H. Schönherr 3a8b0677fc KVM: VMX: Do not BUG() on out-of-bounds guest IRQ
The value of the guest_irq argument to vmx_update_pi_irte() is
ultimately coming from a KVM_IRQFD API call. Do not BUG() in
vmx_update_pi_irte() if the value is out-of bounds. (Especially,
since KVM as a whole seems to hang after that.)

Instead, print a message only once if we find that we don't have a
route for a certain IRQ (which can be out-of-bounds or within the
array).

This fixes CVE-2017-1000252.

Fixes: efc644048e ("KVM: x86: Update IRTE for posted-interrupts")
Signed-off-by: Jan H. Schönherr <jschoenh@amazon.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-15 16:56:43 +02:00
arch KVM: VMX: Do not BUG() on out-of-bounds guest IRQ 2017-09-15 16:56:43 +02:00
block SCSI misc on 20170907 2017-09-07 21:11:05 -07:00
certs
crypto
Documentation First batch of KVM changes for 4.14 2017-09-08 15:18:36 -07:00
drivers RDMA/netlink: clean up message validity array initializer 2017-09-08 10:17:20 -07:00
firmware
fs This series has the ultimate goal of providing a sane stack rlimit when 2017-09-07 20:35:29 -07:00
include KVM: trace events: update list of exit reasons 2017-09-14 18:54:14 +02:00
init
ipc
kernel Nothing new in development for this release. These are mostly 2017-09-08 15:08:14 -07:00
lib
mm
net
samples
scripts genksyms: fix gperf removal conversion 2017-09-08 14:32:34 -07:00
security audit/stable-4.14 PR 20170907 2017-09-07 20:48:25 -07:00
sound - New Drivers 2017-09-07 13:51:13 -07:00
tools linux-kselftest-4.14-rc1-update 2017-09-08 15:11:20 -07:00
usr
virt KVM: Don't accept obviously wrong gsi values via KVM_IRQFD 2017-09-15 16:55:28 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS First batch of KVM changes for 4.14 2017-09-08 15:18:36 -07:00
Makefile
README

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

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

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.