Merge tag 'hid-for-linus-2024081901' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid

Pull HID fixes from Jiri Kosina:

 - memory corruption fixes for hid-cougar (Camila Alvarez) and
   hid-amd_sfh (Olivier Sobrie)

 - fix for regression in Wacom driver of twist gesture handling (Jason
   Gerecke)

 - two new device IDs for hid-multitouch (Dmitry Savin) and hid-asus
   (Luke D. Jones)

* tag 'hid-for-linus-2024081901' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
  HID: wacom: Defer calculation of resolution until resolution_code is known
  HID: multitouch: Add support for GT7868Q
  HID: amd_sfh: free driver_data after destroying hid device
  hid-asus: add ROG Ally X prod ID to quirk list
  HID: cougar: fix slab-out-of-bounds Read in cougar_report_fixup

Author: torvalds

drivers/hid/amd-sfh-hid/amd_sfh_hid.c

@@ -171,11 +171,13 @@ int amdtp_hid_probe(u32 cur_hid_dev, struct amdtp_cl_data *cli_data)
 void amdtp_hid_remove(struct amdtp_cl_data *cli_data)
 {
 	int i;
+	struct amdtp_hid_data *hid_data;
 
 	for (i = 0; i < cli_data->num_hid_devices; ++i) {
 		if (cli_data->hid_sensor_hubs[i]) {
-			kfree(cli_data->hid_sensor_hubs[i]->driver_data);
+			hid_data = cli_data->hid_sensor_hubs[i]->driver_data;
 			hid_destroy_device(cli_data->hid_sensor_hubs[i]);
+			kfree(hid_data);
 			cli_data->hid_sensor_hubs[i] = NULL;
 		}
 	}

drivers/hid/hid-asus.c

@@ -1248,6 +1248,9 @@ static const struct hid_device_id asus_devices[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
 	    USB_DEVICE_ID_ASUSTEK_ROG_NKEY_ALLY),
 	  QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
+	    USB_DEVICE_ID_ASUSTEK_ROG_NKEY_ALLY_X),
+	  QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
 	    USB_DEVICE_ID_ASUSTEK_ROG_CLAYMORE_II_KEYBOARD),
 	  QUIRK_ROG_CLAYMORE_II_KEYBOARD },

drivers/hid/hid-cougar.c

@@ -106,7 +106,7 @@ static void cougar_fix_g6_mapping(void)
 static __u8 *cougar_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 				 unsigned int *rsize)
 {
-	if (rdesc[2] == 0x09 && rdesc[3] == 0x02 &&
+	if (*rsize >= 117 && rdesc[2] == 0x09 && rdesc[3] == 0x02 &&
 	    (rdesc[115] | rdesc[116] << 8) >= HID_MAX_USAGES) {
 		hid_info(hdev,
 			"usage count exceeds max: fixing up report descriptor\n");

drivers/hid/hid-ids.h

@@ -210,6 +210,7 @@
 #define USB_DEVICE_ID_ASUSTEK_ROG_NKEY_KEYBOARD3	0x1a30
 #define USB_DEVICE_ID_ASUSTEK_ROG_Z13_LIGHTBAR		0x18c6
 #define USB_DEVICE_ID_ASUSTEK_ROG_NKEY_ALLY		0x1abe
+#define USB_DEVICE_ID_ASUSTEK_ROG_NKEY_ALLY_X		0x1b4c
 #define USB_DEVICE_ID_ASUSTEK_ROG_CLAYMORE_II_KEYBOARD	0x196b
 #define USB_DEVICE_ID_ASUSTEK_FX503VD_KEYBOARD	0x1869
 
@@ -520,6 +521,8 @@
 #define USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100 0xe100
 
 #define I2C_VENDOR_ID_GOODIX		0x27c6
+#define I2C_DEVICE_ID_GOODIX_01E8	0x01e8
+#define I2C_DEVICE_ID_GOODIX_01E9	0x01e9
 #define I2C_DEVICE_ID_GOODIX_01F0	0x01f0
 
 #define USB_VENDOR_ID_GOODTOUCH		0x1aad

drivers/hid/hid-multitouch.c

@@ -1441,6 +1441,30 @@ static int mt_event(struct hid_device *hid, struct hid_field *field,
 	return 0;
 }
 
+static __u8 *mt_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+			     unsigned int *size)
+{
+	if (hdev->vendor == I2C_VENDOR_ID_GOODIX &&
+	    (hdev->product == I2C_DEVICE_ID_GOODIX_01E8 ||
+	     hdev->product == I2C_DEVICE_ID_GOODIX_01E9)) {
+		if (rdesc[607] == 0x15) {
+			rdesc[607] = 0x25;
+			dev_info(
+				&hdev->dev,
+				"GT7868Q report descriptor fixup is applied.\n");
+		} else {
+			dev_info(
+				&hdev->dev,
+				"The byte is not expected for fixing the report descriptor. \
+It's possible that the touchpad firmware is not suitable for applying the fix. \
+got: %x\n",
+				rdesc[607]);
+		}
+	}
+
+	return rdesc;
+}
+
 static void mt_report(struct hid_device *hid, struct hid_report *report)
 {
 	struct mt_device *td = hid_get_drvdata(hid);
@@ -2035,6 +2059,14 @@ static const struct hid_device_id mt_devices[] = {
 		MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL,
 			USB_DEVICE_ID_GAMETEL_MT_MODE) },
 
+	/* Goodix GT7868Q devices */
+	{ .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT_NSMU,
+	  HID_DEVICE(BUS_I2C, HID_GROUP_ANY, I2C_VENDOR_ID_GOODIX,
+		     I2C_DEVICE_ID_GOODIX_01E8) },
+	{ .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT_NSMU,
+	  HID_DEVICE(BUS_I2C, HID_GROUP_ANY, I2C_VENDOR_ID_GOODIX,
+		     I2C_DEVICE_ID_GOODIX_01E8) },
+
 	/* GoodTouch panels */
 	{ .driver_data = MT_CLS_NSMU,
 		MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
@@ -2270,6 +2302,7 @@ static struct hid_driver mt_driver = {
 	.feature_mapping = mt_feature_mapping,
 	.usage_table = mt_grabbed_usages,
 	.event = mt_event,
+	.report_fixup = mt_report_fixup,
 	.report = mt_report,
 	.suspend = pm_ptr(mt_suspend),
 	.reset_resume = pm_ptr(mt_reset_resume),

drivers/hid/wacom_wac.c

@@ -1878,12 +1878,14 @@ static void wacom_map_usage(struct input_dev *input, struct hid_usage *usage,
 	int fmax = field->logical_maximum;
 	unsigned int equivalent_usage = wacom_equivalent_usage(usage->hid);
 	int resolution_code = code;
-	int resolution = hidinput_calc_abs_res(field, resolution_code);
+	int resolution;
 
 	if (equivalent_usage == HID_DG_TWIST) {
 		resolution_code = ABS_RZ;
 	}
 
+	resolution = hidinput_calc_abs_res(field, resolution_code);
+
 	if (equivalent_usage == HID_GD_X) {
 		fmin += features->offset_left;
 		fmax -= features->offset_right;