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

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Pull HID fixes from Jiri Kosina:

 - data sanitization and validtion fixes for report descriptor parser
   from Marc Zyngier

 - memory leak fix for hid-elan driver from Dinghao Liu

 - two device-specific quirks

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
  HID: core: Sanitize event code and type when mapping input
  HID: core: Correctly handle ReportSize being zero
  HID: elan: Fix memleak in elan_input_configured
  HID: microsoft: Add rumble support for the 8bitdo SN30 Pro+ controller
  HID: quirks: Set INCREMENT_USAGE_ON_DUPLICATE for all Saitek X52 devices
This commit is contained in:
Linus Torvalds 2020-09-02 12:55:46 -07:00
commit fc3abb5325
8 changed files with 57 additions and 15 deletions
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15
drivers/hid/hid-core.c
View File

@ -1597,6 +1597,17 @@ static void hid_output_field(const struct hid_device *hid,
}
}
/*
* Compute the size of a report.
*/
static size_t hid_compute_report_size(struct hid_report *report)
{
if (report->size)
return ((report->size - 1) >> 3) + 1;
return 0;
}
/*
* Create a report. 'data' has to be allocated using
* hid_alloc_report_buf() so that it has proper size.
@ -1609,7 +1620,7 @@ void hid_output_report(struct hid_report *report, __u8 *data)
if (report->id > 0)
*data++ = report->id;
memset(data, 0, ((report->size - 1) >> 3) + 1);
memset(data, 0, hid_compute_report_size(report));
for (n = 0; n < report->maxfield; n++)
hid_output_field(report->device, report->field[n], data);
}
@ -1739,7 +1750,7 @@ int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, u32 size,
csize--;
}
rsize = ((report->size - 1) >> 3) + 1;
rsize = hid_compute_report_size(report);
if (report_enum->numbered && rsize >= HID_MAX_BUFFER_SIZE)
rsize = HID_MAX_BUFFER_SIZE - 1;

2
drivers/hid/hid-elan.c
View File

@ -188,6 +188,7 @@ static int elan_input_configured(struct hid_device *hdev, struct hid_input *hi)
ret = input_mt_init_slots(input, ELAN_MAX_FINGERS, INPUT_MT_POINTER);
if (ret) {
hid_err(hdev, "Failed to init elan MT slots: %d\n", ret);
input_free_device(input);
return ret;
}
@ -198,6 +199,7 @@ static int elan_input_configured(struct hid_device *hdev, struct hid_input *hi)
if (ret) {
hid_err(hdev, "Failed to register elan input device: %d\n",
ret);
input_mt_destroy_slots(input);
input_free_device(input);
return ret;
}

3
drivers/hid/hid-ids.h
View File

@ -850,6 +850,7 @@
#define USB_DEVICE_ID_MS_POWER_COVER 0x07da
#define USB_DEVICE_ID_MS_XBOX_ONE_S_CONTROLLER 0x02fd
#define USB_DEVICE_ID_MS_PIXART_MOUSE 0x00cb
#define USB_DEVICE_ID_8BITDO_SN30_PRO_PLUS 0x02e0
#define USB_VENDOR_ID_MOJO 0x8282
#define USB_DEVICE_ID_RETRO_ADAPTER 0x3201
@ -1015,6 +1016,8 @@
#define USB_DEVICE_ID_SAITEK_RAT9 0x0cfa
#define USB_DEVICE_ID_SAITEK_MMO7 0x0cd0
#define USB_DEVICE_ID_SAITEK_X52 0x075c
#define USB_DEVICE_ID_SAITEK_X52_2 0x0255
#define USB_DEVICE_ID_SAITEK_X52_PRO 0x0762
#define USB_VENDOR_ID_SAMSUNG 0x0419
#define USB_DEVICE_ID_SAMSUNG_IR_REMOTE 0x0001

4
drivers/hid/hid-input.c
View File

@ -1132,6 +1132,10 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
}
mapped:
/* Mapping failed, bail out */
if (!bit)
return;
if (device->driver->input_mapped &&
device->driver->input_mapped(device, hidinput, field, usage,
&bit, &max) < 0) {

2
drivers/hid/hid-microsoft.c
View File

@ -448,6 +448,8 @@ static const struct hid_device_id ms_devices[] = {
.driver_data = MS_SURFACE_DIAL },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_XBOX_ONE_S_CONTROLLER),
.driver_data = MS_QUIRK_FF },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_8BITDO_SN30_PRO_PLUS),
.driver_data = MS_QUIRK_FF },
{ }
};
MODULE_DEVICE_TABLE(hid, ms_devices);

2
drivers/hid/hid-multitouch.c
View File

@ -856,6 +856,8 @@ static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
code = BTN_0 + ((usage->hid - 1) & HID_USAGE);
hid_map_usage(hi, usage, bit, max, EV_KEY, code);
if (!*bit)
return -1;
input_set_capability(hi->input, EV_KEY, code);
return 1;

2
drivers/hid/hid-quirks.c
View File

@ -150,6 +150,8 @@ static const struct hid_device_id hid_quirks[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_RETROUSB, USB_DEVICE_ID_RETROUSB_SNES_RETROPORT), HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RUMBLEPAD), HID_QUIRK_BADPAD },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_X52), HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_X52_2), HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_X52_PRO), HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE },
{ HID_USB_DEVICE(USB_VENDOR_ID_SEMICO, USB_DEVICE_ID_SEMICO_USB_KEYKOARD2), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_SEMICO, USB_DEVICE_ID_SEMICO_USB_KEYKOARD), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_SENNHEISER, USB_DEVICE_ID_SENNHEISER_BTD500USB), HID_QUIRK_NOGET },

42
include/linux/hid.h
View File

@ -959,34 +959,49 @@ static inline void hid_device_io_stop(struct hid_device *hid) {
* @max: maximal valid usage->code to consider later (out parameter)
* @type: input event type (EV_KEY, EV_REL, ...)
* @c: code which corresponds to this usage and type
*
* The value pointed to by @bit will be set to NULL if either @type is
* an unhandled event type, or if @c is out of range for @type. This
* can be used as an error condition.
*/
static inline void hid_map_usage(struct hid_input *hidinput,
struct hid_usage *usage, unsigned long **bit, int *max,
__u8 type, __u16 c)
__u8 type, unsigned int c)
{
struct input_dev *input = hidinput->input;
usage->type = type;
usage->code = c;
unsigned long *bmap = NULL;
unsigned int limit = 0;
switch (type) {
case EV_ABS:
*bit = input->absbit;
*max = ABS_MAX;
bmap = input->absbit;
limit = ABS_MAX;
break;
case EV_REL:
*bit = input->relbit;
*max = REL_MAX;
bmap = input->relbit;
limit = REL_MAX;
break;
case EV_KEY:
*bit = input->keybit;
*max = KEY_MAX;
bmap = input->keybit;
limit = KEY_MAX;
break;
case EV_LED:
*bit = input->ledbit;
*max = LED_MAX;
bmap = input->ledbit;
limit = LED_MAX;
break;
}
if (unlikely(c > limit || !bmap)) {
pr_warn_ratelimited("%s: Invalid code %d type %d\n",
input->name, c, type);
*bit = NULL;
return;
}
usage->type = type;
usage->code = c;
*max = limit;
*bit = bmap;
}
/**
@ -1000,7 +1015,8 @@ static inline void hid_map_usage_clear(struct hid_input *hidinput,
__u8 type, __u16 c)
{
hid_map_usage(hidinput, usage, bit, max, type, c);
clear_bit(c, *bit);
if (*bit)
clear_bit(usage->code, *bit);
}
/**