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Brendan Shanks 9abf0403a7 Input: evdev - call input_flush_device() on release(), not flush()
[ Upstream commit 09264098ff153f60866039d60b31d39b66f55a31 ]

input_flush_device() should only be called once the struct file is being
released and no open descriptors remain, but evdev_flush() was calling
it whenever a file descriptor was closed.

This caused uploaded force-feedback effects to be erased when a process
did a dup()/close() on the event FD, called system(), etc.

Call input_flush_device() from evdev_release() instead.

Reported-by: Mathieu Maret <mathieu.maret@gmail.com>
Signed-off-by: Brendan Shanks <bshanks@codeweavers.com>
Link: https://lore.kernel.org/r/20200421231003.7935-1-bshanks@codeweavers.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-03 08:21:16 +02:00
arch csky: Fixup raw_copy_from_user() 2020-06-03 08:21:15 +02:00
block
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Documentation
drivers Input: evdev - call input_flush_device() on release(), not flush() 2020-06-03 08:21:16 +02:00
fs cifs: Fix null pointer check in cifs_read 2020-06-03 08:21:14 +02:00
include net/tls: fix race condition causing kernel panic 2020-06-03 08:21:01 +02:00
init
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kernel
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net net/tls: free record only on encryption error 2020-06-03 08:21:06 +02:00
samples samples: bpf: Fix build error 2020-06-03 08:21:15 +02:00
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sound ALSA: usb-audio: add mapping for ASRock TRX40 Creator 2020-06-03 08:21:09 +02:00
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Makefile Linux 5.4.43 2020-05-27 17:46:53 +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.