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Filename Latest commit message Latest commit date
Imre Deak 636c4c3e76 drm/mst: Avoid processing partially received up/down message transactions
Currently we may process up/down message transactions containing
uninitialized data. This can happen if there was an error during the
reception of any message in the transaction, but we happened to receive
the last message correctly with the end-of-message flag set.

To avoid this abort the reception of the transaction when the first
error is detected, rejecting any messages until a message with the
start-of-message flag is received (which will start a new transaction).
This is also what the DP 1.4 spec 2.11.8.2 calls for in this case.

In addtion this also prevents receiving bogus transactions without the
first message with the the start-of-message flag set.

v2:
- unchanged
v3:
- git add the part that actually skips messages after an error in
  drm_dp_sideband_msg_build()

Cc: Dave Airlie <airlied@redhat.com>
Cc: Lyude <lyude@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Lyude <lyude@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20170719134632.13366-1-imre.deak@intel.com
2017-07-20 10:20:31 +02:00
arch Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-06-25 12:01:56 -07:00
block
certs
crypto
Documentation Linux 4.12-rc7 2017-06-27 08:28:30 +10:00
drivers drm/mst: Avoid processing partially received up/down message transactions 2017-07-20 10:20:31 +02:00
firmware
fs Merge branch 'akpm' (patches from Andrew) 2017-06-23 16:30:52 -07:00
include Merge branch 'drm-misc-next-fixes' into drm-misc-fixes 2017-07-17 11:56:07 -04:00
init
ipc
kernel Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-06-25 11:59:19 -07:00
lib lib/cmdline.c: fix get_options() overflow while parsing ranges 2017-06-23 16:15:55 -07:00
mm slub: make sysfs file removal asynchronous 2017-06-23 16:15:55 -07:00
net
samples
scripts Kbuild fixes for v4.12 (2nd) 2017-06-24 16:18:00 -07:00
security
sound Linux 4.12-rc7 2017-06-27 08:28:30 +10:00
tools perf probe: Fix probe definition for inlined functions 2017-06-22 16:08:09 -03:00
usr
virt
.cocciconfig
.get_maintainer.ignore
.gitattributes
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COPYING
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Makefile Linux 4.12-rc7 2017-06-25 18:30:05 -07:00
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.