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Filename Latest commit message Latest commit date
Andy Shevchenko b55c38fe24 platform/x86: wmi: Break possible infinite loop when parsing GUID
[ Upstream commit 028e6e204ace1f080cfeacd72c50397eb8ae8883 ]

The while-loop may break on one of the two conditions, either ID string
is empty or GUID matches. The second one, may never be reached if the
parsed string is not correct GUID. In such a case the loop will never
advance to check the next ID.

Break possible infinite loop by factoring out guid_parse_and_compare()
helper which may be moved to the generic header for everyone later on
and preventing from similar mistake in the future.

Interestingly that firstly it appeared when WMI was turned into a bus
driver, but later when duplicated GUIDs were checked, the while-loop
has been replaced by for-loop and hence no mistake made again.

Fixes: a48e23385f ("platform/x86: wmi: add context pointer field to struct wmi_device_id")
Fixes: 844af950da ("platform/x86: wmi: Turn WMI into a bus driver")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230621151155.78279-1-andriy.shevchenko@linux.intel.com
Tested-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-27 08:37:33 +02:00
arch ARM: orion5x: fix d2net gpio initialization 2023-07-27 08:37:26 +02:00
block block/partition: fix signedness issue for Amiga partitions 2023-07-27 08:37:29 +02:00
certs
crypto
Documentation fs: Lock moved directories 2023-07-27 08:37:26 +02:00
drivers platform/x86: wmi: Break possible infinite loop when parsing GUID 2023-07-27 08:37:33 +02:00
fs fanotify: disallow mount/sb marks on kernel internal pseudo fs 2023-07-27 08:37:26 +02:00
include drm/panel: Add and fill drm_panel type field 2023-07-27 08:37:29 +02:00
init
ipc
kernel workqueue: clean up WORK_* constant types, clarify masking 2023-07-27 08:37:29 +02:00
lib lib/ts_bm: reset initial match offset for every block of text 2023-07-27 08:37:12 +02:00
LICENSES
mm
net ipv6/addrconf: fix a potential refcount underflow for idev 2023-07-27 08:37:32 +02:00
samples samples/bpf: Fix buffer overflow in tcp_basertt 2023-07-27 08:37:07 +02:00
scripts modpost: fix off by one in is_executable_section() 2023-07-27 08:37:18 +02:00
security integrity: Fix possible multiple allocation in integrity_inode_get() 2023-07-27 08:37:25 +02:00
sound ALSA: jack: Fix mutex call in snd_jack_report() 2023-07-27 08:37:24 +02:00
tools perf dwarf-aux: Fix off-by-one in die_get_varname() 2023-07-27 08:37:17 +02:00
usr
virt
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.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.250 2023-07-24 19:10:53 +02:00
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.