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Filename Latest commit message Latest commit date
Jason Gerecke 99036f1aed HID: wacom: Use ktime_t rather than int when dealing with timestamps
commit 9a6c0e28e215535b2938c61ded54603b4e5814c5 upstream.

Code which interacts with timestamps needs to use the ktime_t type
returned by functions like ktime_get. The int type does not offer
enough space to store these values, and attempting to use it is a
recipe for problems. In this particular case, overflows would occur
when calculating/storing timestamps leading to incorrect values being
reported to userspace. In some cases these bad timestamps cause input
handling in userspace to appear hung.

Link: https://gitlab.freedesktop.org/libinput/libinput/-/issues/901
Fixes: 17d793f3ed53 ("HID: wacom: insert timestamp to packed Bluetooth (BT) events")
CC: stable@vger.kernel.org
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20230608213828.2108-1-jason.gerecke@wacom.com
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-07-27 08:37:03 +02:00
arch x86/smp: Use dedicated cache-line for mwait_play_dead() 2023-07-27 08:37:03 +02:00
block block/blk-iocost (gcc13): keep large values in a new enum 2023-06-14 10:59:54 +02:00
certs
crypto KEYS: asymmetric: Copy sig and digest in public_key_verify_signature() 2023-06-21 15:44:08 +02:00
Documentation Remove DECnet support from kernel 2023-06-21 15:44:10 +02:00
drivers HID: wacom: Use ktime_t rather than int when dealing with timestamps 2023-07-27 08:37:03 +02:00
fs gfs2: Don't deref jdesc in evict 2023-07-27 08:37:03 +02:00
include rcu: Upgrade rcu_swap_protected() to rcu_replace_pointer() 2023-06-28 10:18:38 +02:00
init
ipc
kernel cgroup: Do not corrupt task iteration when rebinding subsystem 2023-06-28 10:18:36 +02:00
lib test_firmware: fix a memory leak with reqs buffer 2023-06-21 15:44:08 +02:00
LICENSES
mm mm: make wait_on_page_writeback() wait for multiple pending writebacks 2023-06-28 10:18:42 +02:00
net sch_netem: acquire qdisc lock in netem_change() 2023-06-28 10:18:40 +02:00
samples
scripts
security
sound ASoC: nau8824: Add quirk to active-high jack-detect 2023-06-28 10:18:41 +02:00
tools selftests/ptp: Fix timestamp printf format for PTP_SYS_OFFSET 2023-06-21 15:44:12 +02:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS Remove DECnet support from kernel 2023-06-21 15:44:10 +02:00
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.