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| author | Arnd Bergmann <arnd@arndb.de> | 2019-12-14 01:06:58 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-14 22:08:24 +0300 |
| commit | 854ac5dee5be03a280faf1a4f7907b4e9a4b3be1 (patch) | |
| tree | ea8d8e8633f9d593c58a04f23fb994a1967a80da /drivers/input/misc | |
| parent | 39f711b69799c49e0e385494b9b8c0787f51293f (diff) | |
| download | linux-854ac5dee5be03a280faf1a4f7907b4e9a4b3be1.tar.xz | |
Input: input_event - fix struct padding on sparc64
commit f729a1b0f8df7091cea3729fc0e414f5326e1163 upstream.
Going through all uses of timeval, I noticed that we screwed up
input_event in the previous attempts to fix it:
The time fields now match between kernel and user space, but all following
fields are in the wrong place.
Add the required padding that is implied by the glibc timeval definition
to fix the layout, and use a struct initializer to avoid leaking kernel
stack data.
Fixes: 141e5dcaa735 ("Input: input_event - fix the CONFIG_SPARC64 mixup")
Fixes: 2e746942ebac ("Input: input_event - provide override for sparc64")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20191213204936.3643476-2-arnd@arndb.de
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/input/misc')
| -rw-r--r-- | drivers/input/misc/uinput.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c index 84051f20b18a..002654ec7040 100644 --- a/drivers/input/misc/uinput.c +++ b/drivers/input/misc/uinput.c @@ -74,12 +74,16 @@ static int uinput_dev_event(struct input_dev *dev, struct uinput_device *udev = input_get_drvdata(dev); struct timespec64 ts; - udev->buff[udev->head].type = type; - udev->buff[udev->head].code = code; - udev->buff[udev->head].value = value; ktime_get_ts64(&ts); - udev->buff[udev->head].input_event_sec = ts.tv_sec; - udev->buff[udev->head].input_event_usec = ts.tv_nsec / NSEC_PER_USEC; + + udev->buff[udev->head] = (struct input_event) { + .input_event_sec = ts.tv_sec, + .input_event_usec = ts.tv_nsec / NSEC_PER_USEC, + .type = type, + .code = code, + .value = value, + }; + udev->head = (udev->head + 1) % UINPUT_BUFFER_SIZE; wake_up_interruptible(&udev->waitq); |