Dmitry Torokhov a4858b00a1 Input: uinput - reject requests with unreasonable number of slots ... [ Upstream commit 206f533a0a ] From: Dmitry Torokhov <dmitry.torokhov@gmail.com> When exercising uinput interface syzkaller may try setting up device with a really large number of slots, which causes memory allocation failure in input_mt_init_slots(). While this allocation failure is handled properly and request is rejected, it results in syzkaller reports. Additionally, such request may put undue burden on the system which will try to free a lot of memory for a bogus request. Fix it by limiting allowed number of slots to 100. This can easily be extended if we see devices that can track more than 100 contacts. Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Reported-by: syzbot <syzbot+0122fa359a69694395d5@syzkaller.appspotmail.com> Closes: https://syzkaller.appspot.com/bug?extid=0122fa359a69694395d5 Link: https://lore.kernel.org/r/Zqgi7NYEbpRsJfa2@google.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-09-12 11:11:39 +02:00
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gameport
joystick	Input: xpad - add support for ASUS ROG RAIKIRI PRO	2024-07-25 09:50:49 +02:00
keyboard	Input: qt1050 - handle CHIP_ID reading error	2024-08-03 08:53:58 +02:00
misc	Input: uinput - reject requests with unreasonable number of slots	2024-09-12 11:11:39 +02:00
mouse	Revert "Input: bcm5974 - check endpoint type before starting traffic"	2024-08-19 06:04:31 +02:00
rmi4	Input: synaptics-rmi4 - fail probing if memory allocation for "phys" fails	2024-04-13 13:07:33 +02:00
serio	Input: i8042 - use new forcenorestore quirk to replace old buggy quirk combination	2024-08-29 17:33:53 +02:00
tablet
tests
touchscreen	Input: ili210x - use kvmalloc() to allocate buffer for firmware update	2024-09-12 11:11:31 +02:00
apm-power.c
evbug.c
evdev.c
ff-core.c	Input: ff-core - prefer struct_size over open coded arithmetic	2024-07-11 12:49:06 +02:00
ff-memless.c
input-compat.c
input-compat.h
input-core-private.h
input-leds.c
input-mt.c	Input: MT - limit max slots	2024-08-29 17:33:59 +02:00
input-poller.c
input-poller.h
input.c	Input: try trimming too long modalias strings	2024-06-12 11:11:18 +02:00
joydev.c
Kconfig
Makefile
matrix-keymap.c
mousedev.c
sparse-keymap.c
touchscreen.c
vivaldi-fmap.c