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android_kernel_samsung_sm8650/drivers/hid
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Lee Jones 71761b36c3 ANDROID: HID; Over-ride default maximum buffer size when using UHID 
Presently, when a report is processed, its proposed size, provided by
the user of the API (as Report Size * Report Count) is compared against
the subsystem default HID_MAX_BUFFER_SIZE (16k).  However, some
low-level HID drivers allocate a reduced amount of memory to their
buffers (e.g. UHID only allocates UHID_DATA_MAX (4k) buffers), rending
this check inadequate in some cases.

In these circumstances, if the received report ends up being smaller
than the proposed report size, the remainder of the buffer is zeroed.
That is, the space between sizeof(csize) (size of the current report)
and the rsize (size proposed i.e. Report Size * Report Count), which can
be handled up to HID_MAX_BUFFER_SIZE (16k).  Meaning that memset()
shoots straight past the end of the buffer boundary and starts zeroing
out in-use values, often resulting in calamity.

This is an Android specific patch which essentially achieves the same
goal as the recently reverted upstream commits b1a37ed00d790 "(HID:
core: Provide new max_buffer_size attribute to over-ride the default")
and 1c5d4221240a2 ("HID: uhid: Over-ride the default maximum data buffer
value with our own") only it does so in an ABI friendly (albeit more
hacky) way.

Bug: 260007429
Signed-off-by: Lee Jones <joneslee@google.com>
Change-Id: I1f56673bb67b63ab14b58634bfe74a04b0758e3d
2023-06-13 16:49:26 +00:00
..
amd-sfh-hid HID: amd_sfh: if no sensors are enabled, clean up 2023-02-14 19:11:45 +01:00
i2c-hid Revert "Revert "HID: retain initial quirks set up when creating HID devices"" 2023-03-30 12:23:02 +01:00
intel-ish-hid HID: intel-ish-hid: Fix kernel panic during warm reset 2023-04-20 12:35:13 +02:00
surface-hid HID: surface-hid: Add support for hot-removal 2022-06-13 17:25:08 +02:00
usbhid HID: move from strlcpy with unused retval to strscpy 2022-08-25 11:44:27 +02:00
.kunitconfig HID: uclogic: Add KUnit tests for uclogic_rdesc_template_apply() 2022-06-15 15:51:46 +02:00
hid-a4tech.c HID: a4tech: use A4_2WHEEL_MOUSE_HACK_B8 for A4TECH NB-95 2021-05-05 14:29:13 +02:00
hid-accutouch.c
hid-alps.c HID: alps: Declare U1_UNICORN_LEGACY support 2022-07-22 15:02:20 +02:00
hid-apple.c HID: apple: enable APPLE_ISO_TILDE_QUIRK for the keyboards of Macs with the T2 chip 2022-12-31 13:33:00 +01:00
hid-appleir.c HID: appleir: Use devm_kzalloc() instead of kzalloc() 2020-03-13 17:33:11 +01:00
hid-asus.c HID: asus: use spinlock to safely schedule workers 2023-03-10 09:32:32 +01:00
hid-aureal.c
hid-axff.c
hid-belkin.c
hid-betopff.c HID: betop: check shape of output reports 2023-02-01 08:34:24 +01:00
hid-bigbenff.c hid: bigben_probe(): validate report count 2023-03-10 09:33:23 +01:00
hid-cherry.c
hid-chicony.c HID: check for valid USB device for many HID drivers 2021-12-02 15:36:18 +01:00
hid-cmedia.c HID: cmedia: add support for HS-100B mute button 2021-07-28 11:51:07 +02:00
hid-core.c ANDROID: HID; Over-ride default maximum buffer size when using UHID 2023-06-13 16:49:26 +00:00
hid-corsair.c HID: check for valid USB device for many HID drivers 2021-12-02 15:36:18 +01:00
hid-cougar.c HID: cougar: Make use of the helper function devm_add_action_or_reset() 2021-10-07 13:37:25 +02:00
hid-cp2112.c HID: cp2112: Fix driver not registering GPIO IRQ chip as threaded 2023-03-30 12:49:16 +02:00
hid-creative-sb0540.c
hid-cypress.c HID: cypress: Support Varmilo Keyboards' media hotkeys 2020-10-23 13:23:44 +02:00
hid-debug.c HID: Add Mapping for System Microphone Mute 2023-03-10 09:33:55 +01:00
hid-dr.c
hid-elan.c HID: elan: Fix potential double free in elan_input_configured 2022-04-21 11:38:28 +02:00
hid-elecom.c HID: elecom: add support for TrackBall 056E:011C 2023-03-03 11:52:20 +01:00
hid-elo.c HID: elo: Revert USB reference counting 2022-02-17 14:14:41 +01:00
hid-emsff.c
hid-ezkey.c
hid-ft260.c HID: check for valid USB device for many HID drivers 2021-12-02 15:36:18 +01:00
hid-gaff.c
hid-gembird.c
hid-generic.c
hid-gfrm.c
hid-glorious.c HID: Add driver fixing Glorious PC Gaming Race mouse report descriptor 2020-03-18 13:36:21 +01:00
hid-google-hammer.c HID: vivaldi: convert to use dev_groups 2022-08-25 11:37:21 +02:00
hid-gt683r.c HID: gt683r: add missing MODULE_DEVICE_TABLE 2021-05-27 15:40:34 +02:00
hid-gyration.c
hid-holtek-kbd.c HID: check for valid USB device for many HID drivers 2021-12-02 15:36:18 +01:00
hid-holtek-mouse.c HID: holtek: fix mouse probing 2021-12-20 11:25:42 +01:00
hid-holtekff.c
hid-hyperv.c HID: hyperv: fix possible memory leak in mousevsc_probe() 2022-11-02 14:34:56 +01:00
hid-icade.c
hid-ids.h HID: uclogic: Add support for XP-PEN Deco Pro MW 2023-03-10 09:33:57 +01:00
hid-input.c Merge 6.1.16 into android14-6.1 2023-03-13 15:45:34 +00:00
hid-ite.c HID: ite: Enable QUIRK_TOUCHPAD_ON_OFF_REPORT on Acer Aspire Switch V 10 2022-11-14 23:55:12 +01:00
hid-jabra.c
hid-kensington.c
hid-keytouch.c
hid-kye.c HID: uclogic: Switch to Digitizer usage for styluses 2022-05-11 14:19:27 +02:00
hid-lcpower.c
hid-led.c HID: hid-led: fix maximum brightness for Dream Cheeky 2022-04-21 10:28:49 +02:00
hid-lenovo.c HID: lenovo: Make array tp10ubkbd_led static const 2022-10-18 14:43:59 +02:00
hid-letsketch.c HID: Add new Letsketch tablet driver 2022-01-06 14:22:51 +01:00
hid-lg2ff.c
hid-lg3ff.c
hid-lg4ff.c HID: hid-lg4ff: Add check for empty lbuf 2022-11-14 23:56:52 +01:00
hid-lg4ff.h
hid-lg-g15.c HID: lg-g15: Fix comment typo 2022-07-21 13:47:12 +02:00
hid-lg.c HID: check for valid USB device for many HID drivers 2021-12-02 15:36:18 +01:00
hid-lg.h
hid-lgff.c
hid-logitech-dj.c HID: logitech-dj: add new lightspeed receiver id 2022-02-16 16:26:21 +01:00
hid-logitech-hidpp.c HID: logitech-hidpp: Add support for Logitech MX Master 3S mouse 2023-03-30 12:49:16 +02:00
hid-macally.c HID: macally: Constify macally_id_table 2020-08-17 11:38:49 +02:00
hid-magicmouse.c HID: magicmouse: Do not set BTN_MOUSE on double report 2022-10-14 10:47:50 +01:00
hid-maltron.c
hid-mcp2221.c HID: mcp2221: don't connect hidraw 2022-12-31 13:33:10 +01:00
hid-megaworld.c HID: Add support for Mega World controller force feedback 2022-05-06 08:29:26 +02:00
hid-mf.c HID: mf: add support for 0079:1846 Mayflash/Dragonrise USB Gamecube Adapter 2020-11-25 14:30:33 +01:00
hid-microsoft.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid 2020-09-02 12:55:46 -07:00
hid-monterey.c
hid-multitouch.c HID: multitouch: Add quirks for flipped axes 2023-03-10 09:33:20 +01:00
hid-nintendo.c HID: nintendo: check analog user calibration for plausibility 2022-09-21 13:25:26 +01:00
hid-nti.c
hid-ntrig.c
hid-ortek.c
hid-penmount.c
hid-petalynx.c
hid-picolcd_backlight.c
hid-picolcd_cir.c media: rc: harmonize infrared durations to microseconds 2020-09-03 16:18:55 +02:00
hid-picolcd_core.c HID: hid-picolcd_core: Remove unused variable 'ret' 2021-04-07 18:46:20 +02:00
hid-picolcd_debugfs.c
hid-picolcd_fb.c fbdev: Rename pagelist to pagereflist for deferred I/O 2022-05-03 16:04:22 +02:00
hid-picolcd_lcd.c
hid-picolcd_leds.c
hid-picolcd.h
hid-pl.c
hid-plantronics.c HID: plantronics: Additional PIDs for double volume key presses quirk 2023-01-04 11:28:58 +01:00
hid-playstation.c HID: playstation: sanity check DualSense calibration data. 2023-02-06 08:06:33 +01:00
hid-primax.c
hid-prodikeys.c HID: check for valid USB device for many HID drivers 2021-12-02 15:36:18 +01:00
hid-pxrc.c HID: Add driver for PhoenixRC Flight Controller 2022-09-20 11:36:21 +01:00
hid-quirks.c Revert "Revert "HID: retain initial quirks set up when creating HID devices"" 2023-03-30 12:23:02 +01:00
hid-razer.c HID: Add driver for Razer Blackwidow keyboards 2022-02-16 17:12:14 +01:00
hid-redragon.c
hid-retrode.c
hid-rmi.c HID: i2c: let RMI devices decide what constitutes wakeup event 2022-12-31 13:32:14 +01:00
hid-roccat-arvo.c HID: check for valid USB device for many HID drivers 2021-12-02 15:36:18 +01:00
hid-roccat-arvo.h
hid-roccat-common.c
hid-roccat-common.h
hid-roccat-isku.c HID: check for valid USB device for many HID drivers 2021-12-02 15:36:18 +01:00
hid-roccat-isku.h
hid-roccat-kone.c HID: check for valid USB device for many HID drivers 2021-12-02 15:36:18 +01:00
hid-roccat-kone.h HID: roccat: Use struct_group() to zero kone_mouse_event 2021-09-25 08:20:48 -07:00
hid-roccat-koneplus.c HID: check for valid USB device for many HID drivers 2021-12-02 15:36:18 +01:00
hid-roccat-koneplus.h
hid-roccat-konepure.c HID: check for valid USB device for many HID drivers 2021-12-02 15:36:18 +01:00
hid-roccat-kovaplus.c HID: check for valid USB device for many HID drivers 2021-12-02 15:36:18 +01:00
hid-roccat-kovaplus.h
hid-roccat-lua.c HID: check for valid USB device for many HID drivers 2021-12-02 15:36:18 +01:00
hid-roccat-lua.h
hid-roccat-pyra.c HID: check for valid USB device for many HID drivers 2021-12-02 15:36:18 +01:00
hid-roccat-pyra.h
hid-roccat-ryos.c HID: check for valid USB device for many HID drivers 2021-12-02 15:36:18 +01:00
hid-roccat-savu.c HID: check for valid USB device for many HID drivers 2021-12-02 15:36:18 +01:00
hid-roccat-savu.h
hid-roccat.c HID: roccat: Fix use-after-free in roccat_read() 2022-09-20 14:49:15 +02:00
hid-saitek.c HID: saitek: add madcatz variant of MMO7 mouse device ID 2022-10-18 14:42:45 +02:00
hid-samsung.c HID: check for valid USB device for many HID drivers 2021-12-02 15:36:18 +01:00
hid-semitek.c HID: semitek: new driver for GK6X series keyboards 2021-05-05 14:21:08 +02:00
hid-sensor-custom.c HID: hid-sensor-custom: set fixed size for custom attributes 2022-12-31 13:32:14 +01:00
hid-sensor-hub.c HID: hid-sensor-hub: Return error for hid_set_field() failure 2021-05-05 14:36:18 +02:00
hid-sigmamicro.c HID: add SiGma Micro driver 2022-02-02 15:12:22 +01:00
hid-sjoy.c
hid-sony.c HID: sony: Fix double word in comments 2022-09-20 11:27:29 +01:00
hid-speedlink.c
hid-steam.c Merge branch 'for-6.1/core' into for-linus 2022-10-05 10:19:06 +01:00
hid-steelseries.c
hid-sunplus.c
hid-thrustmaster.c HID: thrustmaster: Add sparco wheel and fix array length 2022-08-25 11:38:55 +02:00
hid-tivo.c
hid-tmff.c HID: thrustmaster use swap() to make code cleaner 2021-12-14 10:50:23 +01:00
hid-topre.c hid: topre: Add driver fixing report descriptor 2022-09-20 12:16:25 +01:00
hid-topseed.c
hid-twinhan.c
hid-u2fzero.c HID: add hid_is_usb() function to make it simpler for USB detection 2021-12-02 15:35:57 +01:00
hid-uclogic-core.c HID: uclogic: Add support for XP-PEN Deco Pro MW 2023-03-10 09:33:57 +01:00
hid-uclogic-params-test.c HID: uclogic: Parse the UGEE v2 frame type 2022-08-25 10:26:31 +02:00
hid-uclogic-params.c HID: uclogic: Add support for XP-PEN Deco Pro MW 2023-03-10 09:33:57 +01:00
hid-uclogic-params.h HID: uclogic: Add battery quirk 2023-03-10 09:33:56 +01:00
hid-uclogic-rdesc-test.c HID: uclogic: KUnit best practices and naming conventions 2022-08-25 10:26:31 +02:00
hid-uclogic-rdesc.c HID: uclogic: Add support for XP-PEN Deco LW 2022-12-31 13:33:00 +01:00
hid-uclogic-rdesc.h HID: uclogic: Add support for XP-PEN Deco LW 2022-12-31 13:33:00 +01:00
hid-udraw-ps3.c HID: udraw-ps3: Replace HTTP links with HTTPS ones 2020-07-20 12:24:41 +02:00
hid-viewsonic.c HID: uclogic: Switch to Digitizer usage for styluses 2022-05-11 14:19:27 +02:00
hid-vivaldi-common.c HID: vivaldi: convert to use dev_groups 2022-08-25 11:37:21 +02:00
hid-vivaldi-common.h HID: vivaldi: convert to use dev_groups 2022-08-25 11:37:21 +02:00
hid-vivaldi.c HID: vivaldi: convert to use dev_groups 2022-08-25 11:37:21 +02:00
hid-vrc2.c HID: Add driver for VRC-2 Car Controller 2022-09-20 11:35:00 +01:00
hid-waltop.c
hid-wiimote-core.c HID: wiimote: remove h from printk format specifier 2021-01-07 10:14:58 +01:00
hid-wiimote-debug.c
hid-wiimote-modules.c HID: Wiimote: Treat the d-pad as an analogue stick 2020-06-19 14:17:22 +02:00
hid-wiimote.h HID: Wiimote: Treat the d-pad as an analogue stick 2020-06-19 14:17:22 +02:00
hid-xiaomi.c HID: Add support for side buttons of Xiaomi Mi Dual Mode Wireless Mouse Silent 2021-09-22 11:53:07 +02:00
hid-xinmo.c
hid-zpff.c
hid-zydacron.c
hidraw.c HID: hidraw: fix memory leak in hidraw_release() 2022-08-25 11:30:50 +02:00
Kconfig Merge branch 'for-6.1/uclogic' into for-linus 2022-10-05 10:34:48 +01:00
Makefile Merge branch 'for-6.1/uclogic' into for-linus 2022-10-05 10:34:48 +01:00
uhid.c Revert "HID: uhid: Over-ride the default maximum data buffer value with our own" 2023-03-23 08:25:22 +00:00
wacom_sys.c HID: wacom: Ensure bootloader PID is usable in hidraw mode 2022-12-31 13:33:10 +01:00
wacom_wac.c HID: wacom: Ensure bootloader PID is usable in hidraw mode 2022-12-31 13:33:10 +01:00
wacom_wac.h HID: wacom: Ensure bootloader PID is usable in hidraw mode 2022-12-31 13:33:10 +01:00
wacom.h HID: wacom: Simplify comments 2022-08-25 11:32:31 +02:00