| Age | Commit message (Collapse) | Author |
|---|
|
A recent commit fixing DMA-buffers on stack added a shared transfer
buffer protected by a spinlock. This is broken as the USB HID request
callbacks can sleep. Fix this up by replacing the spinlock with a mutex.
Fixes: 1ffb3c40ffb5 ("HID: cp2112: make transfer buffers DMA capable")
Cc: stable <stable@vger.kernel.org> # 4.9
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
The driver type can be assigned immediately when an RC device
requests to the framework to allocate the device.
This is an 'enum rc_driver_type' data type and specifies whether
the device is a raw receiver or scancode receiver. The type will
be given as parameter to the rc_allocate_device device.
Change accordingly all the drivers calling rc_allocate_device()
so that the device type is specified during the rc device
allocation. Whenever the device type is not specified, it will be
set as RC_DRIVER_SCANCODE which was the default '0' value.
Suggested-by: Sean Young <sean@mess.org>
Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
|
|
unknown and other are for IR protocols for which we have no decoder,
so the raw IR drivers have no chance of generating them. cec is not
an IR protocol.
Signed-off-by: Sean Young <sean@mess.org>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
|
|
With NOGET quirk Logitech F510 is now fully workable in dinput mode including
rumble effects (according to fftest).
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=117091
[jkosina@suse.cz: fix patch format]
Signed-off-by: Ardinartsev Nikita <ardinar23@gmail.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
Quirking the following AMI USB device with ALWAYS_POLL fixes an AMI
virtual keyboard and mouse from not responding and timing out when
it is attached to a ppc64el Power 8 system and when we have some
rapid open/closes on the mouse device.
usb 1-3: new high-speed USB device number 2 using xhci_hcd
usb 1-3: New USB device found, idVendor=046b, idProduct=ff01
usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-3: Product: Virtual Hub
usb 1-3: Manufacturer: American Megatrends Inc.
usb 1-3: SerialNumber: serial
usb 1-3.3: new high-speed USB device number 3 using xhci_hcd
usb 1-3.3: New USB device found, idVendor=046b, idProduct=ff31
usb 1-3.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-3.3: Product: Virtual HardDisk Device
usb 1-3.3: Manufacturer: American Megatrends Inc.
usb 1-3.4: new low-speed USB device number 4 using xhci_hcd
usb 1-3.4: New USB device found, idVendor=046b, idProduct=ff10
usb 1-3.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 1-3.4: Product: Virtual Keyboard and Mouse
usb 1-3.4: Manufacturer: American Megatrends Inc.
With the quirk I have not been able to trigger the issue with
half an hour of saturation soak testing.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
Commit 025bcc1 performed cleanup work on the 'wacom_pl_irq' function, making
it follow the standards used in the rest of the codebase. The change
unintiontionally allowed the function to send input events from reports
that are not marked as being in prox. This can cause problems as the
report values for X, Y, etc. are not guaranteed to be correct. In
particular, occasionally the tablet will send a report with these values
set to zero. If such a report is received it can caus an unexpected jump
in the XY position.
This patch surrounds more of the processing code with a proximity check,
preventing these zeroed reports from overwriting the current state. To
be safe, only the tool type and ABS_MISC events should be reported when
the pen is marked as being out of prox.
Fixes: 025bcc1540 ("HID: wacom: Simplify 'wacom_pl_irq'")
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
Add support for the LEDs around the mode switch to the generic code path in
support of the second generation Intuos Pro.
Signed-off-by: Aaron Skomra <aaron.skomra@wacom.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
The second generation Intuos Pro is the first device in the generic codepath
which has a touchswitch. We utilize a flag in wacom_shared in order to report
this switch event received from the pad on the touch input.
Signed-off-by: Aaron Skomra <aaron.skomra@wacom.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
Add vendor defined touch to support the second generation Intuos Pro.
Previously all generic Wacom devices used true HID to report their touch.
Signed-off-by: Aaron Skomra <aaron.skomra@wacom.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
Add support for the touchring to the generic code path in support of the second
generation Intuos Pro.
We also add checks for usage->type to ensure that we handle the usage before we
report it, or change the inrange_state based on it.
Signed-off-by: Aaron Skomra <aaron.skomra@wacom.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
Input_event_flag duplicates the information we track in
wacom_wac->hid_data.inrange_state for the pad.
Signed-off-by: Aaron Skomra <aaron.skomra@wacom.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
In addition to its USB interface, the second-generation Intuos Pro
includes a Bluetooth radio that offers two pairing interfaces: classic
and low-energy. The classic interface functions just like the earlier
Bluetooth-enabled Intuos4 and Graphire4 tablets, appearing as a HID device
that our driver can work with. The low-energy interface is intented to
be used by userspace applications that make use of its paper-to-digital
capabilities.
Despite the USB interface using Wacom's new vendor-defined HID usages,
the Bluetooth interface provides us with useless black-box "blob"
report descriptors like past devices. We thus have to explicitly add
support for the PIDs and reports used.
These devices pack a /lot/ of information into a single Bluetooth
input report. Each report contains up to seven snapshots of the pen
state, four snapshots of the touch state (of five touches each), pad
state, and battery data. Thankfully this isn't too hard for the driver
to report -- it just takes a fair amount of code to extract!
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
Centralize our definition of report IDs by moving those for device commands
into wacom_wac.h alongside those for input reports.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
There no reason a Bluetooth device with the appropriate HID descriptor couldn't
be used through the HID_GENERIC codepath in the future. Ensure that the driver
attempts to bind to these devices.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
The Intuos Pro seems to not like when we set the features right after
being powered up. Instead of waiting during probe, we can schedule the
switch mode and LED control in a deferred worker so that we don't have the
5 secs of delay from USB when the device is not accessible.
The USB timeout delays were really a pain because if you happen to unplug
the tablet while it is still waiting, you are just adding 5 second timeouts
to the USB stack. Which means that a new plug of the same tablet will also
gets delayed, and will also attempt to access the hardware while in
.probe(). So the tablet doesn't appear in the dmesg, the user unplug/replug
it to make it appearing... and so on so forth.
Really, this is for the best :)
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
When the LED class gets removed, it actually tries to reset the LED.
However, the device being disconnected, the set_report fails.
Previously, the attempt to cut lose this last event was through unsetting
the HID drvdata, but it was not working properly. Simply reset the LED
groups to NULL makes a more efficient solution.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
In the general case, the resources are properly released by devm without
needing to do anything. However, when unplugging the wireless receiver,
the kernel segfaults from time to time while calling devres_release_all().
I think in that case the resources attempt to access hid_get_drvdata(hdev)
which has been set to null while leaving wacom_remove().
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
Removes trailing whitespace in hid-core.c and usbhid/hid-quirks.c
Signed-off-by: Dennis Chen <barracks510@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
Nearly identical to the previous set of patches related to Microsoft
Surface Keyboards.
Removes Surface Pro 3 generation TypeCover support from hid-microsoft
so proper multitouch data can be reported from the touchpad.
Signed-off-by: Dennis Chen <barracks510@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
Commit 345857b ("HID: wacom: generic: Add support for sensor offsets") included
a change to the operation and location of the call to 'wacom_add_shared_data'
in 'wacom_parse_and_register'. The modifications included moving it higher up
so that it would occur before the call to 'wacom_retrieve_hid_descriptor'. This
was done to prevent a crash that would have occured when the report containing
tablet offsets was fed into the driver with 'wacom_hid_report_raw_event'
(specifically: the various 'wacom_wac_*_report' functions were written with the
assumption that they would only be called once tablet setup had completed;
'wacom_wac_pen_report' in particular dereferences 'shared' which wasn't yet
allocated).
Moving the call to 'wacom_add_shared_data' effectively prevented the crash but
also broke the sibiling detection code which assumes that the HID descriptor
has been read and the various device_type flags set.
To fix this situation, we restore the original 'wacom_add_shared_data'
operation and location and instead implement an alternative change that can
also prevent the crash. Specifically, we notice that the report functions
mentioned above expect to be called only for input reports. By adding a check,
we can prevent feature reports (such as the offset report) from
causing trouble.
Fixes: 345857bb49 ("HID: wacom: generic: Add support for sensor offsets")
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Tested-by: Ping Cheng <pingc@wacom.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
Make sure to check for short control transfers in order to avoid parsing
uninitialised buffer data and leaking it to user space.
Note that the backlight and macro-mode buffer constraints are kept as
loose as possible in order to avoid any regressions should the current
buffer sizes be larger than necessary.
Fixes: 6f78193ee9ea ("HID: corsair: Add Corsair Vengeance K90 driver")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
Not all platforms support DMA to the stack, and specifically since v4.9
this is no longer supported on x86 with VMAP_STACK either.
Note that the macro-mode buffer was larger than necessary.
Fixes: 6f78193ee9ea ("HID: corsair: Add Corsair Vengeance K90 driver")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
With the addition of HID and F12 support in the synaptics-rmi4 driver
touchpads which had been using the hid-multitouch driver can now
be support by the synaptics-rmi4 via hid-rmi. The advantage is that
additional data can be reported from the RMI registers which is not
available in the Microsoft Precision Touchpad collection.
Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
The Synaptics RMI4 driver provides support for RMI4 devices. Instead of
duplicating the RMI4 processing code, make hid-rmi a transport driver
and register it with the Synaptics RMI4 core.
Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
The Mayflash DolphinBar and GameCube adapters have been tested and confirmed to
work using the hid-mf driver.
Signed-off-by: Marcel Hasler <mahasler@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
The Mayflash GameCube adapter has received a firmware update which, among other
things, changes the device's PID. It also fixes enumeration, therefore the
updated firmware no longer requires HID_QUIRK_MULTI_INPUT.
Signed-off-by: Marcel Hasler <mahasler@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
multitouch data
Nearly identical to the patch "multitouch: enable the Surface 4 Type Cover Pro
(JP) to report multitouch data"
We can now remove the support of the Surface 4 Type Cover Pro (not JP versions)
from hid-microsoft so it can properly report multi touch from the touchpad.
Signed-off-by: Daniel Keller <daniel.keller@gcd.de>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
Support for the Asus Touchpad was recently added. It turns out this
device can fail initialisation (and become unusable) when the RESET
command is sent too soon after the POWER ON command.
Unfortunately the i2c-hid specification does not specify the need for
a delay between these two commands. But it was discovered the Windows
driver has a 1ms delay.
As a result, this patch modifies the i2c-hid module to add a sleep
inbetween the POWER ON and RESET commands which lasts between 1ms and 5ms.
See https://github.com/vlasenko/hid-asus-dkms/issues/24 for further
details.
Signed-off-by: Brendan McGrath <redmcg@redmandi.dyndns.org>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
Make sure we have enough of a report structure to validate before
looking at it.
Reported-by: Benoit Camredon <benoit.camredon@airbus.com>
Tested-by: Benoit Camredon <benoit.camredon@airbus.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
Local "#define DRIVER_LICENSE" obfuscates which license is used
in MODULE_LICENSE(). "fgrep -R MODULE_LICENSE" is more informative
when the string is hard coded in MODULE_LICENSE.
Signed-off-by: Grant Grundler <grundler@google.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
This headlamp contains a dummy HID descriptor which pretends to be
a mouse-like device, but can't be used as a mouse at all.
Reported-by: Lukas Ocilka <lukas.ocilka@suse.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
While applying patch d443a0aa3a29: "HID: hid-sensor-hub: clear memory to
avoid random data", there was some issues in applying correct version of
the patch. This resulted in the breakage of sensor functions as all
request like power-up will be reset by the memset() in the function
sensor_hub_set_feature().
The reset of caller buffer should be in the function
sensor_hub_get_feature(), not in the sensor_hub_set_feature().
Fixes: d443a0aa3a29 ("HID: hid-sensor-hub: clear memory to avoid random data")
Cc: Stable <stable@vger.kernel.org> # 4.9+
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
The DolphinBar by Mayflash (identified as Dragonrise) needs
HID_QUIRK_MULTI_INPUT to split it up into four input devices. Without this
quirk the adapter is falsely recognized as a tablet. See also bug 115841
(https://bugzilla.kernel.org/show_bug.cgi?id=115841).
Signed-off-by: Marcel Hasler <mahasler@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
The Futaba TOSD-5711BB VFD crashes when the initial HID report is requested,
register the display in hid-ids and tell hid-quirks to not do the init.
Signed-off-by: Alex Wood <thetewood@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
In ishtp_hid_probe(), use %04X instead of %04hX to format __u32 values,
in order to silent a format error reported by clang:
drivers/hid/intel-ish-hid/ishtp-hid.c:212:3: error: format specifies
type 'unsigned short' but the argument has type '__u32' (aka
'unsigned int') [-Werror,-Wformat]
hid->vendor, hid->product);
^~~~~~~~~~~
drivers/hid/intel-ish-hid/ishtp-hid.c:212:16: error: format
specifies type 'unsigned short' but the argument has type '__u32'
(aka 'unsigned int') [-Werror,-Wformat]
hid->vendor, hid->product);
^~~~~~~~~~~~
Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
Structure ishtp_device contains a logging function, print_log(), which
formats some of its parameters using vsnprintf(). Add a __printf
attribute to this function field (and to ish_event_tracer()) in order to
detect at compile time issues related to the printf-like formatting.
While at it, make format parameter a const pointer as print_log() is not
supposed to modify it.
Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
When the DS4 dongle is connected, it always generates HID reports
even when no DS4 is paired to it. This patch adds logic to ignore
HID reports from the dongle if there is no DS4 currently attached.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
The DS4 MAC address is reported as a unique identified when
using Bluetooth. For USB there is no unique identifier reported
yet, so use the MAC address.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
The error handling code in sony_input_configured in general uses goto
based cleanup. Recently we migrated code from sony_probe to here, but
we didn't update the existing touchpad registration code, which was
already here to use the goto.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
multitouch data
Since commit 8fe89ef076fa1 ("HID: multitouch: enable the Surface 3 Type
Cover to report multitouch data"), the TypeCover can be properly handled
by hid-multitouch and don't require any special quirk in the kernel.
Remove the support of the Surface 4 Type Cover Pro (JP) from
hid-microsoft so it can properly report multitouch from the touchpad.
Signed-off-by: Yuta Kobayashi <alu.ula@outlook.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
The previous submission which added Touchpad support broke the
Keyboard support of this driver. This patch:
1. fixes the Keyboard support (by assigning drvdata->input);
2. renames NOTEBOOK_QUIRKS to KEYBOARD_QUIRKS;
3. adds the NO_INIT_REPORT quirk to the KEYBOARD_QUIRKS; and
4. sets the input->name to 'Asus Keyboard' for the keyboard
Signed-off-by: Brendan McGrath <redmcg@redmandi.dyndns.org>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
hid/intel-ish-hid does not use any miscdevice so this patch remove
this unnecessary inclusion.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
'for-4.10/i2c-hid-nopower', 'for-4.10/intel-ish', 'for-4.10/mayflash', 'for-4.10/microsoft-surface-3', 'for-4.10/multitouch', 'for-4.10/sony', 'for-4.10/udraw-ps3', 'for-4.10/upstream' and 'for-4.10/wacom/generic' into for-linus
|
|
commit ba18a9314a94 ("Revert "HID: i2c-hid: Add support for ACPI GPIO
interrupts"") removed the need for storing the irq in struct i2c_hid.
But then commit de3c99488609 ("HID: i2c-hid: Disable IRQ before freeing
buffers") forgot to update the location of the irq.
Fix this by using the actual I2C client irq.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
Add a forgotten include that I've by mistake omitted when resolving
merge conflict in ead0687fe30 ("HID: i2c-hid: support regulator power
on/off").
Fixes: ead0687fe30 ("HID: i2c-hid: support regulator power on/off")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
The HID report buffers that are initially allocated on i2c_hid_probe()
might not be big enough to hold the HID reports from a specific device,
in which case they will be freed and new ones will be allocated in
i2c_hid_start(), at point which the device's report size is known. But
at this point ihid->irq is already running, and may call
i2c_hid_get_input() which passes ihid->inbuf to i2c_master_recv(). Since
this handler runs in a separate thread, ihid->inbuf may be freed at this
very moment, and i2c_master_recv() will write on memory which may be
already owned by a different part of the kernel, corrupting its data.
This problem has been observed on an Asus UX360UA laptop which has an
I2C touchpad, and results in a complete system freeze or an unusable
slowness with a lof of "BUG: unable to handle kernel paging request at
<address>" warnings. Enabling SLUB debugging shows a use-after-free
warning on memory allocated in i2c_hid_alloc_buffers() and freed in
i2c_hid_free_buffers():
=============================================================================
BUG kmalloc-64 (Not tainted): Poison overwritten
-----------------------------------------------------------------------------
Disabling lock debugging due to kernel taint
INFO: 0xffff880264083273-0xffff88026408329e. first byte 0x0 instead of 0x6b
INFO: Allocated in i2c_hid_alloc_buffers+0x25/0xa0 [i2c_hid] age=35793 cpu=2 pid=430
___slab_alloc+0x41e/0x460
__slab_alloc+0x20/0x40
__kmalloc+0x210/0x280
i2c_hid_alloc_buffers+0x25/0xa0 [i2c_hid]
i2c_hid_probe+0x12f/0x5e0 [i2c_hid]
i2c_device_probe+0x10a/0x1b0
driver_probe_device+0x220/0x4a0
__device_attach_driver+0x71/0xa0
bus_for_each_drv+0x67/0xb0
__device_attach+0xdc/0x170
device_initial_probe+0x13/0x20
bus_probe_device+0x92/0xa0
device_add+0x4aa/0x670
device_register+0x1a/0x20
i2c_new_device+0x18e/0x230
acpi_i2c_add_device+0x1a0/0x210
INFO: Freed in i2c_hid_free_buffers+0x16/0x60 [i2c_hid] age=7552 cpu=1 pid=1473
__slab_free+0x221/0x330
kfree+0x139/0x160
i2c_hid_free_buffers+0x16/0x60 [i2c_hid]
i2c_hid_start+0x2a9/0x2df [i2c_hid]
mt_probe+0x160/0x22e [hid_multitouch]
hid_device_probe+0xd7/0x150 [hid]
driver_probe_device+0x220/0x4a0
__driver_attach+0x84/0x90
bus_for_each_dev+0x6c/0xc0
driver_attach+0x1e/0x20
bus_add_driver+0x1c3/0x280
driver_register+0x60/0xe0
__hid_register_driver+0x53/0x90 [hid]
0xffffffffc004f01e
do_one_initcall+0xb3/0x1f0
do_init_module+0x5f/0x1d0
INFO: Slab 0xffffea0009902080 objects=20 used=20 fp=0x (null) flags=0x17fff8000004080
INFO: Object 0xffff880264083260 @offset=4704 fp=0x (null)
Bytes b4 ffff880264083250: 8d e6 fe ff 00 00 00 00 5a 5a 5a 5a 5a 5a 5a 5a ........ZZZZZZZZ
Object ffff880264083260: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
Object ffff880264083270: 6b 6b 6b 00 00 00 00 00 00 00 00 00 00 00 00 00 kkk.............
Object ffff880264083280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffff880264083290: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Redzone ffff8802640832a0: bb bb bb bb bb bb bb bb ........
Padding ffff8802640833e0: 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZ
CPU: 1 PID: 1503 Comm: python3 Tainted: G B 4.4.21+ #10
Hardware name: ASUSTeK COMPUTER INC. UX360UA/UX360UA, BIOS UX360UA.200 05/05/2016
0000000000000086 00000000622d48a2 ffff88026061ba38 ffffffff813f6044
ffff880264082010 ffff880264083260 ffff88026061ba78 ffffffff811e8eab
0000000000000008 ffff880200000001 ffff88026408329f ffff88026a007700
Call Trace:
[<ffffffff813f6044>] dump_stack+0x63/0x8f
[<ffffffff811e8eab>] print_trailer+0x14b/0x1f0
[<ffffffff811e94c1>] check_bytes_and_report+0xc1/0x100
[<ffffffff811e96c4>] check_object+0x1c4/0x240
[<ffffffff81293fde>] ? ext4_htree_store_dirent+0x3e/0x120
[<ffffffff811e9b44>] alloc_debug_processing+0x104/0x180
[<ffffffff811eb7be>] ___slab_alloc+0x41e/0x460
[<ffffffff81293fde>] ? ext4_htree_store_dirent+0x3e/0x120
[<ffffffff8124590b>] ? __getblk_gfp+0x2b/0x60
[<ffffffff8129b969>] ? ext4_getblk+0xa9/0x190
[<ffffffff811eb820>] __slab_alloc+0x20/0x40
[<ffffffff811ed320>] __kmalloc+0x210/0x280
[<ffffffff81293fde>] ? ext4_htree_store_dirent+0x3e/0x120
[<ffffffff812c1602>] ? ext4fs_dirhash+0xc2/0x2a0
[<ffffffff81293fde>] ext4_htree_store_dirent+0x3e/0x120
[<ffffffff812a4f47>] htree_dirblock_to_tree+0x187/0x1b0
[<ffffffff812a5fd2>] ext4_htree_fill_tree+0xb2/0x2e0
[<ffffffff811ebb7a>] ? kmem_cache_alloc_trace+0x1fa/0x220
[<ffffffff81293e45>] ? ext4_readdir+0x775/0x8b0
[<ffffffff81293cb1>] ext4_readdir+0x5e1/0x8b0
[<ffffffff81221c82>] iterate_dir+0x92/0x120
[<ffffffff81222118>] SyS_getdents+0x98/0x110
[<ffffffff81221d10>] ? iterate_dir+0x120/0x120
[<ffffffff818157f2>] entry_SYSCALL_64_fastpath+0x16/0x71
FIX kmalloc-64: Restoring 0xffff880264083273-0xffff88026408329e=0x6b
FIX kmalloc-64: Marking all objects used
Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
Function hid_post_reset() should return negative error codes on failures.
However, in its implementation, it incorrectly returns 1. This patch fixes the
bug, returning proper error codes on failures.
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
post input_sync only when there are input events posted
Signed-off-by: Ping Cheng <ping.cheng@wacom.com>
Reviewed-By: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
Make sure everything reported from pad are registered
Signed-off-by: Ping Cheng <ping.cheng@wacom.com>
Reviewed-By: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
