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2026-05-29Merge tag 'hid-for-linus-2026052801' of ↵Linus Torvalds8-22/+38
git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid Pull HID fixes from Benjamin Tissoires: - buffer overflow fix for lenovo (Kean) and wacom (Lee Jones) drivers - segfaults prevention in lenovo-go driver when used with an emulated device (Louis Clinckx) - cleanup of resources in u2fzero (Myeonghun Pak) - a quirk for a USB mouse and a cleanup in hid.h (hlleng and Liu Kai) * tag 'hid-for-linus-2026052801' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: HID: wacom: Fix OOB write in wacom_hid_set_device_mode() HID: lenovo-go: drop dead NULL check on to_usb_interface() HID: lenovo-go: reject non-USB transports in probe HID: lenovo: Fix buffer over-read and unaligned access in X12 Tab raw_event handler HID: quirks: Add ALWAYS_POLL quirk for SIGMACHIP USB mouse HID: remove duplicate hid_warn_ratelimited definition HID: u2fzero: free allocated URB on probe errors
2026-05-28HID: wacom: Fix OOB write in wacom_hid_set_device_mode()Lee Jones2-3/+11
wacom_hid_set_device_mode() currently assumes that the HID_DG_INPUTMODE usage is always located in the first field (field[0]) of the feature report. However, a device can specify HID_DG_INPUTMODE in a different field. If HID_DG_INPUTMODE is in a field other than the first one and the first field has a report_count smaller than the usage_index of HID_DG_INPUTMODE, this leads to an out-of-bounds write to r->field[0]->value. Fix this by storing the field index of HID_DG_INPUTMODE in 'struct hid_data' during feature mapping. In wacom_hid_set_device_mode(), use this stored field index to access the correct field and add bounds checks to ensure both the field index and the value index are within valid ranges before writing. Cc: stable@vger.kernel.org Fixes: 5ae6e89f7409 ("HID: wacom: implement the finger part of the HID generic handling") Tested-by: Ping Cheng <ping.cheng@wacom.com> Reviewed-by: Ping Cheng <ping.cheng@wacom.com> Signed-off-by: Lee Jones <lee@kernel.org> Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
2026-05-21HID: lenovo-go: drop dead NULL check on to_usb_interface()Louis Clinckx2-8/+3
to_usb_interface() is a container_of_const() macro: it performs pointer arithmetic and never returns NULL. The if (!intf) and if (intf) tests in get_endpoint_address() can never fire. Remove them in both drivers. No functional change. Suggested-by: Derek J. Clark <derekjohn.clark@gmail.com> Signed-off-by: Louis Clinckx <clinckx.louis@gmail.com> Reviewed-by: Derek J. Clark <derekjoh.clark@gmail.com> Tested-by: Derek J. Clark <derekjohn.clark@gmail.com> Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
2026-05-21HID: lenovo-go: reject non-USB transports in probeLouis Clinckx2-0/+6
These drivers only match HID_USB_DEVICE() entries and assume the underlying bus is USB. Make that explicit at probe by rejecting any non-USB hdev, following the pattern used by other HID drivers. Signed-off-by: Louis Clinckx <clinckx.louis@gmail.com> Reviewed-by: Derek J. Clark <derekjoh.clark@gmail.com> Tested-by: Derek J. Clark <derekjohn.clark@gmail.com> Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
2026-05-21HID: lenovo: Fix buffer over-read and unaligned access in X12 Tab raw_event ↵Kean1-2/+3
handler In lenovo_raw_event(), the X12 Tab keyboard handler reads a 4-byte little-endian value from the raw HID report buffer but: 1. The size guard is size >= 3, while the access reads 4 bytes. A malformed 3-byte report with ID 0x03 would over-read the buffer by one byte. 2. Casting u8 *data directly to __le32 * can trigger unaligned access faults on architectures like ARM, MIPS, and SPARC, because HID input buffers carry no alignment guarantee. (e.g. uhid payloads start at offset 6 in struct uhid_event, giving only 2-byte alignment.) Fix both by tightening the size check to >= 4 and replacing the open-coded cast + le32_to_cpu() with get_unaligned_le32(), which handles the LE-to-CPU conversion safely regardless of alignment. Link: https://sashiko.dev/#/message/20260512044911.99B6DC2BCB0%40smtp.kernel.org Assisted-by: CLAUDE:claude-4-sonnet Signed-off-by: Kean <rh_king@163.com> Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
2026-05-21HID: quirks: Add ALWAYS_POLL quirk for SIGMACHIP USB mousehlleng2-0/+2
The SIGMACHIP USB mouse with VID/PID 1c4f:0034 can disconnect and re-enumerate repeatedly after it has been enumerated if its interrupt endpoint is not continuously polled. This was observed with the device reporting itself as "SIGMACHIP Usb Mouse". Keeping the input event device open avoids the disconnects. Add HID_QUIRK_ALWAYS_POLL for this device so the HID core keeps polling it even when there is no userspace input consumer. Cc: stable@vger.kernel.org Signed-off-by: hlleng <a909204013@gmail.com> Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
2026-05-21HID: u2fzero: free allocated URB on probe errorsMyeonghun Pak1-9/+13
u2fzero_fill_in_urb() allocates dev->urb with usb_alloc_urb(), but u2fzero_probe() ignored its return value and only freed the URB from u2fzero_remove(). If LED or hwrng registration fails after the URB allocation, probe returns an error and the driver core does not call .remove(), leaking the URB. A failed URB setup was also allowed to continue probing with an unusable device. Check the URB setup result and add the missing probe-error unwind so the URB is freed before returning from later errors. Signed-off-by: Myeonghun Pak <mhun512@gmail.com> Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
2026-05-18HID: core: Fix size_t specifier in hid_report_raw_event()Nathan Chancellor1-2/+2
When building for 32-bit platforms, for which 'size_t' is 'unsigned int', there are warnings around using the incorrect format specifier to print bsize in hid_report_raw_event(): drivers/hid/hid-core.c:2054:29: error: format specifies type 'long' but the argument has type 'size_t' (aka 'unsigned int') [-Werror,-Wformat] 2053 | hid_warn_ratelimited(hid, "Event data for report %d is incorrect (%d vs %ld)\n", | ~~~ | %zu 2054 | report->id, csize, bsize); | ^~~~~ drivers/hid/hid-core.c:2076:29: error: format specifies type 'long' but the argument has type 'size_t' (aka 'unsigned int') [-Werror,-Wformat] 2075 | hid_warn_ratelimited(hid, "Event data for report %d was too short (%d vs %ld)\n", | ~~~ | %zu 2076 | report->id, rsize, bsize); | ^~~~~ Use the proper 'size_t' format specifier, '%zu', to clear up the warnings. Cc: stable@vger.kernel.org Fixes: 2c85c61d1332 ("HID: pass the buffer size to hid_report_raw_event") Reported-by: Miguel Ojeda <ojeda@kernel.org> Closes: https://lore.kernel.org/20260516020430.110135-1-ojeda@kernel.org/ Signed-off-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-05-15Merge tag 'hid-for-linus-2026051401' of ↵Linus Torvalds25-80/+265
git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid Pull HID fixes from Jiri Kosina: - fixes for a few OOB/UAF in several HID drivers (Florian Pradines, Lee Jones, Michael Zaidman, Rosalie Wanders, Sangyun Kim and Tomasz Pakuła) - more general sanitation of input data, dealing with potentially malicious hardware in hid-core (Benjamin Tissoires) - a few device-specific quirks and fixups * tag 'hid-for-linus-2026051401' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (22 commits) HID: logitech-hidpp: Add support for newer Bluetooth keyboards HID: pidff: Fix integer overflow in pidff_rescale HID: i2c-hid: add reset quirk for BLTP7853 touchpad HID: core: introduce hid_safe_input_report() HID: pass the buffer size to hid_report_raw_event HID: google: hammer: stop hardware on devres action failure HID: appletb-kbd: run inactivity autodim from workqueues HID: appletb-kbd: fix UAF in inactivity-timer cleanup path HID: playstation: Clamp num_touch_reports HID: magicmouse: Prevent out-of-bounds (OOB) read during DOUBLE_REPORT_ID HID: mcp2221: fix OOB write in mcp2221_raw_event() HID: quirks: really enable the intended work around for appledisplay HID: hid-sjoy: race between init and usage HID: uclogic: Fix regression of input name assignment HID: intel-thc-hid: Intel-quickspi: Fix some error codes HID: hid-lenovo-go-s: restore OS_TYPE after resume from s2idle HID: elan: Add support for ELAN SB974D touchpad HID: sony: add missing size validation for Rock Band 3 Pro instruments HID: sony: add missing size validation for SMK-Link remotes HID: sony: remove unneeded WARN_ON() in sony_leds_init() ...
2026-05-12HID: logitech-hidpp: Add support for newer Bluetooth keyboardsAlain Michaud1-0/+38
Add product IDs (PIDs) for several newer Logitech Bluetooth keyboards to the hidpp_devices matching table, enabling full HID++ support for them. The added keyboards are: - Logitech Signature K650 & B2B - Logitech Pebble Keys 2 K380S - Logitech Casa Pop-Up Desk & B2B - Logitech Wave Keys & B2B - Logitech Signature Slim K950 & B2B - Logitech MX Keys S & B2B - Logitech Keys-To-Go 2 - Logitech Pop Icon Keys - Logitech MX Keys Mini & B2B - Logitech Signature Slim Solar+ K980 B2B - Logitech Bluetooth Keyboard K250/K251 - Logitech Signature Comfort K880 & B2B Signed-off-by: Alain Michaud <alainmichaud@google.com> Reviewed-by: Olivier Gay <ogay@logitech.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12HID: pidff: Fix integer overflow in pidff_rescaleTomasz Pakuła1-2/+5
Rescaling values close to the max (U16_MAX) temporarily creates values that exceed the s32 range. This caused value overflow in case when, for example, a periodic effect phase was higer than 180 degrees. In turn, rescale function could return values outised of the logical range of the HID field. Fix by using 64 bit signed integer to store the value during calculation but still return only 32 bit integer. Closes: https://github.com/JacKeTUs/universal-pidff/issues/116 Fixes: 224ee88fe395 ("Input: add force feedback driver for PID devices") Cc: stable@vger.kernel.org Signed-off-by: Tomasz Pakuła <tomasz.pakula.oficjalny@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12HID: i2c-hid: add reset quirk for BLTP7853 touchpadXu Rao2-0/+5
The BLTP7853 I2C HID touchpad may fail to probe after reboot or reprobe because reset completion is not signalled to the host. The driver then waits for the reset-complete interrupt until it times out and the device probe fails: i2c_hid i2c-BLTP7853:00: failed to reset device. i2c_hid i2c-BLTP7853:00: can't add hid device: -61 i2c_hid: probe of i2c-BLTP7853:00 failed with error -61 Add I2C_HID_QUIRK_NO_IRQ_AFTER_RESET for the device so i2c-hid does not wait for a reset interrupt that may never arrive. Signed-off-by: Xu Rao <raoxu@uniontech.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12HID: core: introduce hid_safe_input_report()Benjamin Tissoires3-8/+35
hid_input_report() is used in too many places to have a commit that doesn't cross subsystem borders. Instead of changing the API, introduce a new one when things matters in the transport layers: - usbhid - i2chid This effectively revert to the old behavior for those two transport layers. Fixes: 0a3fe972a7cb ("HID: core: Mitigate potential OOB by removing bogus memset()") Cc: stable@vger.kernel.org Signed-off-by: Benjamin Tissoires <bentiss@kernel.org> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12HID: pass the buffer size to hid_report_raw_eventBenjamin Tissoires8-25/+41
commit 0a3fe972a7cb ("HID: core: Mitigate potential OOB by removing bogus memset()") enforced the provided data to be at least the size of the declared buffer in the report descriptor to prevent a buffer overflow. However, we can try to be smarter by providing both the buffer size and the data size, meaning that hid_report_raw_event() can make better decision whether we should plaining reject the buffer (buffer overflow attempt) or if we can safely memset it to 0 and pass it to the rest of the stack. Fixes: 0a3fe972a7cb ("HID: core: Mitigate potential OOB by removing bogus memset()") Cc: stable@vger.kernel.org Signed-off-by: Benjamin Tissoires <bentiss@kernel.org> Acked-by: Johan Hovold <johan@kernel.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12HID: google: hammer: stop hardware on devres action failureMyeonghun Pak1-1/+1
hammer_probe() starts the HID hardware before registering the devres action that stops it. If devm_add_action() fails, probe returns an error with the hardware still started because the cleanup action was never registered and the driver's remove callback is not called after a failed probe. Use devm_add_action_or_reset() so the stop action runs immediately on registration failure while preserving the existing devres-managed cleanup path for later probe failures and remove. Signed-off-by: Myeonghun Pak <mhun512@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12HID: appletb-kbd: run inactivity autodim from workqueuesSangyun Kim1-14/+30
The autodim code in hid-appletb-kbd takes backlight_device->ops_lock via backlight_device_set_brightness() -> mutex_lock() from two different atomic contexts: * appletb_inactivity_timer() is a struct timer_list callback, so it runs in softirq context. Every expiry triggers BUG: sleeping function called from invalid context at kernel/locking/mutex.c:591 Call Trace: <IRQ> __might_resched __mutex_lock backlight_device_set_brightness appletb_inactivity_timer call_timer_fn run_timer_softirq * reset_inactivity_timer() is called from appletb_kbd_hid_event() and appletb_kbd_inp_event(). On real USB hardware these run in softirq/IRQ context (URB completion and input-event dispatch). When the Touch Bar has already been dimmed or turned off, the reset path calls backlight_device_set_brightness() directly to restore brightness, producing the same warning. Both call sites hit the same mutex_lock()-from-atomic bug. Fix them together by moving the blocking work onto the system workqueue: * Convert the inactivity timer from struct timer_list to struct delayed_work; the callback (appletb_inactivity_work) now runs in process context where mutex_lock() is legal. * Add a dedicated struct work_struct restore_brightness_work and have reset_inactivity_timer() schedule it instead of calling backlight_device_set_brightness() directly. Cancel both works synchronously during driver tear-down alongside the existing backlight reference drop. The semantics are unchanged (same delays, same state transitions on dim, turn-off and user activity); only the execution context of the sleeping call changes. The timer field and callback are renamed to match their new type; reset_inactivity_timer() keeps its name because it is invoked from input event paths that read naturally as "reset the inactivity timer". Fixes: 93a0fc489481 ("HID: hid-appletb-kbd: add support for automatic brightness control while using the touchbar") Cc: stable@vger.kernel.org Signed-off-by: Sangyun Kim <sangyun.kim@snu.ac.kr> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12HID: appletb-kbd: fix UAF in inactivity-timer cleanup pathSangyun Kim1-8/+8
Commit 38224c472a03 ("HID: appletb-kbd: fix slab use-after-free bug in appletb_kbd_probe") added timer_delete_sync(&kbd->inactivity_timer) to both the probe close_hw error path and appletb_kbd_remove(), but the way it was wired in left the inactivity timer reachable during driver tear-down via two distinct windows. Window A -- put_device() before timer_delete_sync(): put_device(&kbd->backlight_dev->dev); timer_delete_sync(&kbd->inactivity_timer); The inactivity_timer softirq reads kbd->backlight_dev and calls backlight_device_set_brightness() -> mutex_lock(&ops_lock). If a concurrent hid_appletb_bl unbind drops the last devm reference between these two calls, the backlight_device is freed and the mutex_lock() touches freed memory. Window B -- backlight cleanup before hid_hw_stop(): if (kbd->backlight_dev) { timer_delete_sync(...); put_device(...); } hid_hw_close(hdev); hid_hw_stop(hdev); Even after Window A is closed, hid_hw_close()/hid_hw_stop() still run afterwards, so a late ".event" callback from the HID core (USB URB completion on real Apple hardware) can arrive after timer_delete_sync() drained the softirq but before put_device() drops the reference. That callback reaches reset_inactivity_timer(), which calls mod_timer() and re-arms the timer. The freshly re-armed timer can then fire on the about-to-be-freed backlight_device. Both windows produce the same KASAN slab-use-after-free: BUG: KASAN: slab-use-after-free in __mutex_lock+0x1aab/0x21c0 Read of size 8 at addr ffff88803ee9a108 by task swapper/0/0 Call Trace: <IRQ> __mutex_lock backlight_device_set_brightness appletb_inactivity_timer call_timer_fn run_timer_softirq handle_softirqs Allocated by task N: devm_backlight_device_register appletb_bl_probe Freed by task M: (concurrent hid_appletb_bl unbind path) Close both windows at once by reworking the tear-down in appletb_kbd_remove() and in the probe close_hw error path so that 1) hid_hw_close()/hid_hw_stop() run before the backlight cleanup, guaranteeing no further .event callback can fire and re-arm the timer, and 2) inside the "if (kbd->backlight_dev)" block, timer_delete_sync() runs before put_device(), so the softirq is drained before the final reference is dropped. Fixes: 38224c472a03 ("HID: appletb-kbd: fix slab use-after-free bug in appletb_kbd_probe") Cc: stable@vger.kernel.org Signed-off-by: Sangyun Kim <sangyun.kim@snu.ac.kr> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12HID: playstation: Clamp num_touch_reportsT.J. Mercier1-2/+4
A device would never lie about the number of touch reports would it? If it does the loop in dualshock4_parse_report will read off the end of the touch_reports array, up to about 2 KiB for the maximum number of 256 loop iteraions. The data that is read is emitted via evdev if the DS4_TOUCH_POINT_INACTIVE bit happens to be set. Protect against this by clamping the num_touch_reports value provided by the device to the maximum size of the touch_reports array. Fixes: 752038248808 ("HID: playstation: add DualShock4 touchpad support.") Cc: stable@vger.kernel.org Reported-by: Xingyu Jin <xingyuj@google.com> Signed-off-by: T.J. Mercier <tjmercier@google.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12HID: magicmouse: Prevent out-of-bounds (OOB) read during DOUBLE_REPORT_IDLee Jones1-0/+16
It is currently possible for a malicious or misconfigured USB device to cause an out-of-bounds (OOB) read when submitting reports using DOUBLE_REPORT_ID by specifying a large report length and providing a smaller one. Let's prevent that by comparing the specified report length with the actual size of the data read in from userspace. If the actual data length ends up being smaller than specified, we'll politely warn the user and prevent any further processing. Signed-off-by: Lee Jones <lee@kernel.org> Reviewed-by: Günther Noack <gnoack@google.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12HID: mcp2221: fix OOB write in mcp2221_raw_event()Florian Pradines1-0/+7
mcp2221_raw_event() copies device-supplied data into mcp->rxbuf at offset rxbuf_idx without checking that the copy fits within the destination buffer. A device responding with up to 60 bytes to a small I2C/SMBus read can overflow the buffer. Add a rxbuf_size field to struct mcp2221, set it alongside rxbuf in mcp_i2c_smbus_read(), and check rxbuf_idx + data[3] <= rxbuf_size before the memcpy. Reported-by: Benoît Sevens <bsevens@google.com> Signed-off-by: Florian Pradines <florian.pradines@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12HID: quirks: really enable the intended work around for appledisplayLukas Bulwahn1-1/+1
Commit c7fabe4ad921 ("HID: quirks: work around VID/PID conflict for appledisplay") intends to add a quirk for kernels built with Apple Cinema Display support, but it refers to the non-existing config option CONFIG_APPLEDISPLAY, whereas the config option for Apple Cinema Display support is named CONFIG_USB_APPLEDISPLAY. Refer to the intended config option CONFIG_USB_APPLEDISPLAY in the ifdef directive. Fixes: c7fabe4ad921 ("HID: quirks: work around VID/PID conflict for appledisplay") Signed-off-by: Lukas Bulwahn <lukas.bulwahn@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12HID: hid-sjoy: race between init and usageOliver Neukum1-6/+6
The driver uses an initial IO to set the device to a default state. That initialization is currently being done after the device node has been created. That means that the single buffer used for output can be altered while IO is in progress. Move the intialization before announcement to user space. Fixes: fac733f029251 ("HID: force feedback support for SmartJoy PLUS PS2/USB adapter") Signed-off-by: Oliver Neukum <oneukum@suse.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-28HID: uclogic: Fix regression of input name assignmentTakashi Iwai1-1/+3
The previous fix for adding the devm_kasprintf() return check in the commit bd07f751208b ("HID: uclogic: Add NULL check in uclogic_input_configured()") changed the condition of hi->input->name assignment, and it resulted in missing the proper input device name when no custom suffix is defined. Restore the conditional to the original content to address the regression. Fixes: bd07f751208b ("HID: uclogic: Add NULL check in uclogic_input_configured()") Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-28HID: intel-thc-hid: Intel-quickspi: Fix some error codesDan Carpenter1-2/+2
If we have a partial read that is supposed to be treated as failure but in this code we forgot to set the error code. Return -EINVAL. Fixes: 9d8d51735a3a ("HID: intel-thc-hid: intel-quickspi: Add HIDSPI protocol implementation") Signed-off-by: Dan Carpenter <error27@gmail.com> Reviewed-by: Even Xu <even.xu@intel.com> Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-28HID: hid-lenovo-go-s: restore OS_TYPE after resume from s2idleMatthew Schwartz1-0/+44
The controller MCU does not persist OS_TYPE across power cycles. During s2idle resume, the USB device may be power-cycled, causing the OS_TYPE setting to revert to the default Windows value. Add a reset_resume callback so that this is correctly restored after resume. Fixes: a23f3497bf208c59ad ("HID: hid-lenovo-go-s: Add Lenovo Legion Go S Series HID Driver") Reviewed-by: Derek J. Clark <derekjohn.clark@gmail.com> Signed-off-by: Matthew Schwartz <matthew.schwartz@linux.dev> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-28HID: elan: Add support for ELAN SB974D touchpadDamien Dejean2-0/+2
Elan SB974D touchpad uses ELAN_MT_I2C format to send HID reports. Add an entry to match for the device and parse its vendor specific format. Signed-off-by: Damien Dejean <damiendejean@google.com> Signed-off-by: Kornel Dulęba <korneld@google.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-28HID: sony: add missing size validation for Rock Band 3 Pro instrumentsRosalie Wanders1-1/+1
This commit adds the missing size validation for Rock Band 3 PS3 Pro instruments in sony_raw_event(), this prevents a malicious device from allowing hid-sony to read out of bounds of the provided buffer. Signed-off-by: Rosalie Wanders <rosalie@mailbox.org> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-28HID: sony: add missing size validation for SMK-Link remotesRosalie Wanders1-3/+2
This commit adds the missing size validation for SMK-Link remotes in sony_raw_event(), this prevents a malicious device from allowing hid-sony to read out of bounds of the provided buffer. I do not own these devices so the size check only forces that the buffer is large enough for nsg_mrxu_parse_report(). Signed-off-by: Rosalie Wanders <rosalie@mailbox.org> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-28HID: sony: remove unneeded WARN_ON() in sony_leds_init()Rosalie Wanders1-3/+0
This commit removes the unneeded WARN_ON() macro usage in sony_leds_init(), this is unneeded because the sony_leds_init() function call is already gated behind a SONY_LED_SUPPORT check in sony_input_configured() Signed-off-by: Rosalie Wanders <rosalie@mailbox.org> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-28HID: ft260: validate i2c input report lengthMichael Zaidman1-2/+14
Add two checks to ft260_raw_event() to prevent out-of-bounds reads from malicious or malfunctioning devices: First, reject reports shorter than the 2-byte header (report ID + length fields). Without this, even accessing xfer->length on a 1-byte report is an OOB read. Second, validate xfer->length against the actual data capacity of the received HID report. Each I2C data report ID (0xD0 through 0xDE) defines a different report size in the HID descriptor, so the available payload varies per report. A corrupted length field could cause memcpy to read beyond the report buffer. Reported-by: Sebastián Josué Alba Vives <sebasjosue84@gmail.com> Signed-off-by: Michael Zaidman <michael.zaidman@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-28HID: sony: fix incorrect force-feedback check in sony_suspend()Rosalie Wanders1-3/+2
This commit fixes the incorrect force-feedback check in sony_suspend(), without this the check will always be true due to checking a constant define that is never 0. Signed-off-by: Rosalie Wanders <rosalie@mailbox.org> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-23Merge tag 'input-for-v7.1-rc0' of ↵Linus Torvalds1-0/+8
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: - a new charlieplex GPIO keypad driver - an update to aw86927 driver to support 86938 chip - an update for Chrome OS EC keyboard driver to support Fn-<key> keymap extension - an UAF fix in debugfs teardown in EDT touchscreen driver - a number of conversions for input drivers to use guard() and __free() cleanup primitives - several drivers for bus mice (inport, logibm) and other very old devices have been removed - OLPC HGPK PS/2 protocol has been removed as it's been broken and inactive for 10 something years - dedicated kpsmoused has been removed from psmouse driver - other assorted cleanups and fixups * tag 'input-for-v7.1-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (101 commits) Input: charlieplex_keypad - add GPIO charlieplex keypad dt-bindings: input: add GPIO charlieplex keypad dt-bindings: input: add settling-time-us common property dt-bindings: input: add debounce-delay-ms common property Input: imx_keypad - fix spelling mistake "Colums" -> "Columns" Input: edt-ft5x06 - fix use-after-free in debugfs teardown Input: ims-pcu - fix heap-buffer-overflow in ims_pcu_process_data() Input: ct82c710 - remove driver Input: mk712 - remove driver Input: logibm - remove driver Input: inport - remove driver Input: qt1070 - inline i2c_check_functionality check Input: qt1050 - inline i2c_check_functionality check Input: aiptek - validate raw macro indices before updating state Input: gf2k - skip invalid hat lookup values Input: xpad - add RedOctane Games vendor id Input: xpad - remove stale TODO and changelog header Input: usbtouchscreen - refactor endpoint lookup Input: aw86927 - add support for Awinic AW86938 dt-bindings: input: awinic,aw86927: Add Awinic AW86938 ...
2026-04-17Merge tag 'hid-for-linus-2026041601' of ↵Linus Torvalds38-476/+9034
git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid Pull HID updates from Jiri Kosina: "Core: - fixed handling of 0-sized reports (Dmitry Torokhov) - convert core code to __free() (Dmitry Torokhov) - support for multiple batteries per HID device (Lucas Zampieri) Drivers: - support for rumble effects in winwing driver (Ivan Gorinov) - new support for a variety of Sony Rock Band and Sony DJ Hero Turntable devices (Rosalie Wanders) - new driver for Lenovo Legion Go / S devices (Derek J. Clark) - power management improvements to intel-thc-hid driver (Even Xu) ... other assorted cleanups, fixes and device-specific quirks" * tag 'hid-for-linus-2026041601' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (73 commits) HID: core: clamp report_size in s32ton() to avoid undefined shift HID: logitech-dj: fix wrong detection of bad DJ_SHORT output report HID: logitech-hidpp: fix race condition when accessing stale stack pointer HID: winwing: Enable rumble effects HID: core: do not allow parsing 0-sized reports HID: usbhid: refactor endpoint lookup HID: huawei: fix CD30 keyboard report descriptor issue HID: playstation: validate num_touch_reports in DualShock 4 reports HID: drop 'default !EXPERT' from tristate symbols HID: usbhid: fix deadlock in hid_post_reset() HID: apple: ensure the keyboard backlight is off if suspending HID: quirks: Set ALWAYS_POLL for LOGITECH_BOLT_RECEIVER HID: alps: fix NULL pointer dereference in alps_raw_event() HID: logitech-dj: Prevent REPORT_ID_DJ_SHORT related user initiated OOB write HID: logitech-dj: Standardise hid_report_enum variable nomenclature HID: sony: update module description HID: logitech-hidpp: Check bounds when deleting force-feedback effects HID: sony: add battery status support for Rock Band 4 PS5 guitars HID: sony: fix style issues HID: quirks: update hid-sony supported devices ...
2026-04-16Merge branch 'for-7.1/asus' into for-linusJiri Kosina1-51/+57
- robustification of hid-asus driver to prepare for support for more devices which is underway (Denis Benato)
2026-04-16Merge branch 'for-7.1/hid-bpf' into for-linusJiri Kosina11-22/+3865
- sync of HID-BPF with udev-hid-bpf (Benjamin Tissoires, Muhammed Rishal)
2026-04-16Merge branch 'for-7.1/intel-thc' into for-linusJiri Kosina3-6/+61
- power management improvements to intel-thc-hid driver (Even Xu)
2026-04-16Merge branch 'for-7.1/lenovo-v2' into for-linusJiri Kosina6-2/+4041
- new driver for Lenovo Legion Go / S devices (Derek J. Clark)
2026-04-16Merge branch 'for-7.1/mcp2221' into for-linusJiri Kosina1-13/+23
2026-04-16Merge branch 'for-7.1/pidff' into for-linusJiri Kosina2-19/+47
- various new per-device(-group) type quirks for pidff driver (Tomasz Pakuła)
2026-04-16Merge branch 'for-7.1/pl' into for-linusJiri Kosina1-8/+4
2026-04-16Merge branch 'for-7.1/sony' into for-linusJiri Kosina4-80/+349
- new support for a variety of Rock Band and DJ Hero Turntable devices (Rosalie Wanders)
2026-04-16Merge branch 'for-7.1/winwing' into for-linusJiri Kosina1-14/+182
- support for rubmle effects in winwing driver (Ivan Gorinov)
2026-04-16Merge branch 'for-7.1/core-v2' into for-linusJiri Kosina70-336/+350
- fixed handling of 0-sized reports (Dmitry Torokhov) - convert core code to __free() (Dmitry Torokhov) - support for multiple batteries per HID device (Lucas Zampieri)
2026-04-15Merge tag 'media/v7.1-1' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - new CSI tegra support, covering Tegra20 and Tegra30 - new camera sensor drivers: T4ka3 and ov2732 - m88ds3103: add 3103c chip support - uvcvideo: add support for Intel RealSense D436/D555 and P010 pixel format - synopsys csi2rx: add i.MX93 support - imx8-isi: add i.MX95 support - imx8mq-mipi-csi2: add i.MX8ULP support - dw100: add V4L2 requests support - support for DTV devices from Hauppauge got some improvements - media staging: dropped starfive-camss driver - media docs: document multi-committers model and improve maint profile - media core: - add v4l2_subdev_get_frame_desc_passthrough() helper - improve error handling in fwnode parsing - lots of driver fixes, cleanups and improvements * tag 'media/v7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (251 commits) Revert "media: cx231xx: add USB ID 2040:8360 for Hauppauge WinTV-HVR-935" media: synopsys: csi2rx: add i.MX93 support media: dt-bindings: add NXP i.MX93 compatible string media: synopsys: csi2rx: Use enum and u32 array for register offsets media: synopsys: csi2rx: implement .get_frame_desc() callback media: synopsys: csi2rx: only check errors from devm_clk_bulk_get_all() media: synopsys: csi2rx: use devm_reset_control_get_optional_exclusive() media: i2c: imx283: add support for non-continuous MIPI clock mode media: i2c: ov08d10: add support for 24 MHz input clock media: i2c: ov08d10: add support for reset and power management media: i2c: ov08d10: add support for binding via device tree dt-bindings: media: i2c: document Omnivision OV08D10 CMOS image sensor media: i2c: ov08d10: add missing newline to prints media: i2c: ov08d10: fix some typos in comments media: i2c: ov08d10: remove duplicate register write media: i2c: ov08d10: fix image vertical start setting media: i2c: ov08d10: fix runtime PM handling in probe staging: media: ipu7: Update TODO media: Add t4ka3 camera sensor driver media: i2c: Add ov2732 image sensor driver ...
2026-04-13HID: core: clamp report_size in s32ton() to avoid undefined shiftGreg Kroah-Hartman1-0/+3
s32ton() shifts by n-1 where n is the field's report_size, a value that comes directly from a HID device. The HID parser bounds report_size only to <= 256, so a broken HID device can supply a report descriptor with a wide field that triggers shift exponents up to 256 on a 32-bit type when an output report is built via hid_output_field() or hid_set_field(). Commit ec61b41918587 ("HID: core: fix shift-out-of-bounds in hid_report_raw_event") added the same n > 32 clamp to the function snto32(), but s32ton() was never given the same fix as I guess syzbot hadn't figured out how to fuzz a device the same way. Fix this up by just clamping the max value of n, just like snto32() does. Cc: stable <stable@kernel.org> Cc: Jiri Kosina <jikos@kernel.org> Cc: Benjamin Tissoires <bentiss@kernel.org> Cc: linux-input@vger.kernel.org Assisted-by: gregkh_clanker_t1000 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-10HID: logitech-dj: fix wrong detection of bad DJ_SHORT output reportBenjamin Tissoires1-1/+2
commit b6a57912854e ("HID: logitech-dj: Prevent REPORT_ID_DJ_SHORT related user initiated OOB write") assumed that all HID devices attached to the logitech-dj driver was having an output report of DJ_SHORT. However, on the receiver itself, we have 2 other HID device we attach here: the mouse emulation and the keyboard emulation. For those devices the value of rep is NULL and we are triggered a segfault here. This is doubly required because logitech-dj also handles non DJ devices that might not have the DJ collection. Fixes: b6a57912854e ("HID: logitech-dj: Prevent REPORT_ID_DJ_SHORT related user initiated OOB write") Signed-off-by: Benjamin Tissoires <bentiss@kernel.org> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-09HID: logitech-hidpp: fix race condition when accessing stale stack pointerBenoît Sevens1-7/+17
The driver uses hidpp->send_receive_buf to point to a stack-allocated buffer in the synchronous command path (__do_hidpp_send_message_sync). However, this pointer is not cleared when the function returns. If an event is processed (e.g. by a different thread) while the send_mutex is held by a new command, but before that command has updated send_receive_buf, the handler (hidpp_raw_hidpp_event) will observe that the mutex is locked and dereference the stale pointer. This results in an out-of-bounds access on a different thread's kernel stack (or a NULL pointer dereference on the very first command). Fix this by: 1. Clearing hidpp->send_receive_buf to NULL before releasing the mutex in the synchronous command path. 2. Moving the assignment of the local 'question' and 'answer' pointers inside the mutex_is_locked() block in the handler, and adding a NULL check before dereferencing. Signed-off-by: Benoît Sevens <bsevens@google.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-09HID: winwing: Enable rumble effectsIvan Gorinov1-14/+182
Enable rumble motor control on TGRIP-15E and TGRIP-15EX throttle grips by sending haptic feedback commands (EV_FF events) to the input device. Signed-off-by: Ivan Gorinov <linux-kernel@altimeter.info> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-09HID: core: do not allow parsing 0-sized reportsDmitry Torokhov1-0/+5
Commit d7db259bd6df ("HID: core: factor out hid_parse_collections()") reworked collection parsing code and inadvertently allowed returning "success" when parsing 0-sized reports where old code returned -EINVAL. Restore the original behavior by doing an explicit check. Note that the error message now differs from the generic "item fetching failed at offset %u/%u" that is now used only for non-empty descriptors. Fixes: d7db259bd6df ("HID: core: factor out hid_parse_collections()") Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-09HID: usbhid: refactor endpoint lookupJohan Hovold1-5/+3
Use the common USB helper for looking up interrupt-in endpoints instead of open coding. Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Jiri Kosina <jkosina@suse.com>