Commit Graph

389 Commits

Author SHA1 Message Date
Soumya Negi
342c1db4fa Input: pegasus-notetaker - check pipe type when probing
commit b3d80fd27a3c2d8715a40cbf876139b56195f162 upstream.

Fix WARNING in pegasus_open/usb_submit_urb
Syzbot bug: https://syzkaller.appspot.com/bug?id=bbc107584dcf3262253ce93183e51f3612aaeb13

Warning raised because pegasus_driver submits transfer request for
bogus URB (pipe type does not match endpoint type). Add sanity check at
probe time for pipe value extracted from endpoint descriptor. Probe
will fail if sanity check fails.

Reported-and-tested-by: syzbot+04ee0cb4caccaed12d78@syzkaller.appspotmail.com
Signed-off-by: Soumya Negi <soumya.negi97@gmail.com>
Link: https://lore.kernel.org/r/20230404074145.11523-1-soumya.negi97@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-26 14:28:43 +02:00
Christophe JAILLET
2d09ac951b input: drop empty comment blocks
Commit 1a59d1b8e0 ("treewide: Replace GPLv2 boilerplate/reference with
SPDX - rule 156") has left some empty comment blocks.

Remove them to save a few lines of code.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/26a2b905b259bfffaf2de5b26f2007b8606970ed.1664478665.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-09-29 16:25:42 -07:00
Dmitry Torokhov
f4e7a25429 Input: aiptek - switch to using dev_groups for driver-specific attributes
The driver core now has the ability to handle the creation and removal
of device-specific sysfs files, let's use it instead of registering and
unregistering attributes by hand.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220903051119.1332808-3-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-09-03 12:31:18 -07:00
Wolfram Sang
a9f08ad7ad Input: move from strlcpy with unused retval to strscpy
Follow the advice of the below link and prefer 'strscpy' in this
subsystem. Conversion is 1:1 because the return value is not used.
Generated by a coccinelle script.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20220818210022.6865-1-wsa+renesas@sang-engineering.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-08-18 15:44:08 -07:00
Linus Torvalds
54c2cc7919 Merge tag 'usb-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt updates from Greg KH:
 "Here is the "big" set of USB and Thunderbolt driver changes for
  5.18-rc1. For the most part it's been a quiet development cycle for
  the USB core, but there are the usual "hot spots" of development
  activity.

  Included in here are:

   - Thunderbolt driver updates:
       - fixes for devices without displayport adapters
       - lane bonding support and improvements
       - other minor changes based on device testing

   - dwc3 gadget driver changes.

     It seems this driver will never be finished given that the IP core
     is showing up in zillions of new devices and each implementation
     decides to do something different with it...

   - uvc gadget driver updates as more devices start to use and rely on
     this hardware as well

   - usb_maxpacket() api changes to remove an unneeded and unused
     parameter.

   - usb-serial driver device id updates and small cleanups

   - typec cleanups and fixes based on device testing

   - device tree updates for usb properties

   - lots of other small fixes and driver updates.

  All of these have been in linux-next for weeks with no reported
  problems"

* tag 'usb-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (154 commits)
  USB: new quirk for Dell Gen 2 devices
  usb: dwc3: core: Add error log when core soft reset failed
  usb: dwc3: gadget: Move null pinter check to proper place
  usb: hub: Simplify error and success path in port_over_current_notify
  usb: cdns3: allocate TX FIFO size according to composite EP number
  usb: dwc3: Fix ep0 handling when getting reset while doing control transfer
  usb: Probe EHCI, OHCI controllers asynchronously
  usb: isp1760: Fix out-of-bounds array access
  xhci: Don't defer primary roothub registration if there is only one roothub
  USB: serial: option: add Quectel BG95 modem
  USB: serial: pl2303: fix type detection for odd device
  xhci: Allow host runtime PM as default for Intel Alder Lake N xHCI
  xhci: Remove quirk for over 10 year old evaluation hardware
  xhci: prevent U2 link power state if Intel tier policy prevented U1
  xhci: use generic command timer for stop endpoint commands.
  usb: host: xhci-plat: omit shared hcd if either root hub has no ports
  usb: host: xhci-plat: prepare operation w/o shared hcd
  usb: host: xhci-plat: create shared hcd after having added main hcd
  xhci: prepare for operation w/o shared hcd
  xhci: factor out parts of xhci_gen_setup()
  ...
2022-06-03 11:17:49 -07:00
Dmitry Torokhov
038c4bf85b Merge branch 'ib/5.17-cros-ec-keyb' into next
Merge changes to ChromeOS EC Keyboard driver.
2022-05-18 15:02:27 -07:00
Vincent Mailhol
948bf18769 Input: remove third argument of usb_maxpacket()
The third argument of usb_maxpacket(): in_out has been deprecated
because it could be derived from the second argument (e.g. using
usb_pipeout(pipe)).

N.B. function usb_maxpacket() was made variadic to accommodate the
transition from the old prototype with three arguments to the new one
with only two arguments (so that no renaming is needed). The variadic
argument is to be removed once all users of usb_maxpacket() get
migrated.

CC: Ville Syrjala <syrjala@sci.fi>
CC: Dmitry Torokhov <dmitry.torokhov@gmail.com>
CC: Henk Vergonet <Henk.Vergonet@gmail.com>
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/r/20220317035514.6378-4-mailhol.vincent@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-23 10:33:53 +02:00
Colin Ian King
c8eefa0f2a Input: aiptek - remove redundant assignment to variable ret
Variable ret is being assigned a value that is never read, it is
being re-assigned again in either path of the if statement. The
assignment is redundant and can be removed.

Cleans up clang scan build warning:
Although the value stored to 'ret' is used in the enclosing expression,
the value is never actually read from 'ret' [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20220418142457.84708-1-colin.i.king@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-04-20 13:41:17 -07:00
Pavel Skripkin
5600f69866 Input: aiptek - properly check endpoint type
Syzbot reported warning in usb_submit_urb() which is caused by wrong
endpoint type. There was a check for the number of endpoints, but not
for the type of endpoint.

Fix it by replacing old desc.bNumEndpoints check with
usb_find_common_endpoints() helper for finding endpoints

Fail log:

usb 5-1: BOGUS urb xfer, pipe 1 != type 3
WARNING: CPU: 2 PID: 48 at drivers/usb/core/urb.c:502 usb_submit_urb+0xed2/0x18a0 drivers/usb/core/urb.c:502
Modules linked in:
CPU: 2 PID: 48 Comm: kworker/2:2 Not tainted 5.17.0-rc6-syzkaller-00226-g07ebd38a0da2 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
Workqueue: usb_hub_wq hub_event
...
Call Trace:
 <TASK>
 aiptek_open+0xd5/0x130 drivers/input/tablet/aiptek.c:830
 input_open_device+0x1bb/0x320 drivers/input/input.c:629
 kbd_connect+0xfe/0x160 drivers/tty/vt/keyboard.c:1593

Fixes: 8e20cf2bce ("Input: aiptek - fix crash on detecting device without endpoints")
Reported-and-tested-by: syzbot+75cccf2b7da87fb6f84b@syzkaller.appspotmail.com
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Link: https://lore.kernel.org/r/20220308194328.26220-1-paskripkin@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-03-14 18:15:11 -07:00
Jiapeng Chong
4c47097f85 Input: aiptek - convert sysfs sprintf/snprintf family to sysfs_emit
Fix the following coccicheck warning:

./drivers/input/tablet/aiptek.c:1629:8-16: WARNING: use scnprintf or
sprintf.

Reported-by: Abaci Robot<abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Link: https://lore.kernel.org/r/1612419191-1078-1-git-send-email-jiapeng.chong@linux.alibaba.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-02-22 21:22:50 -08:00
Dmitry Torokhov
b2058cd93d Input: gtco - remove driver
The driver has its own HID descriptor parsing code, that had and still
has several issues discovered by syzbot and other tools. Ideally we
should move the driver over to the HID subsystem, so that it uses proven
parsing code.  However the devices in question are EOL, and GTCO is not
willing to extend resources for that, so let's simply remove the driver.

Note that our HID support has greatly improved over the last 10 years,
we may also consider reverting 6f8d9e26e7 ("hid-core.c: Adds all GTCO
CalComp Digitizers and InterWrite School Products to blacklist") and see
if GTCO devices actually work with normal HID drivers.

Link: https://lore.kernel.org/r/X8wbBtO5KidME17K@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-12-09 17:47:36 -08:00
Gustavo A. R. Silva
df561f6688 treewide: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2020-08-23 17:36:59 -05:00
Gustavo A. R. Silva
6f49c4f5b9 Input: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200707180857.GA30600@embeddedor
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-07-07 11:25:54 -07:00
Johan Hovold
cea7991144 Input: gtco - drop redundant variable reinit
Drop the second, redundant reinitialisation of the endpoint-descriptor
pointer from probe.

Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Vladis Dronov <vdronov@redhat.com>
Link: https://lore.kernel.org/r/20191210113737.4016-7-johan@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-01-10 14:43:00 -08:00
Johan Hovold
3563c629fb Input: gtco - fix extra-descriptor debug message
Make sure to use the current altsetting when printing size of any extra
descriptors of the interface.

Also fix the s/endpoint/interface/ mixup in the message itself.

Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Vladis Dronov <vdronov@redhat.com>
Link: https://lore.kernel.org/r/20191210113737.4016-6-johan@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-01-10 14:42:58 -08:00
Johan Hovold
a8eeb74df5 Input: gtco - fix endpoint sanity check
The driver was checking the number of endpoints of the first alternate
setting instead of the current one, something which could lead to the
driver binding to an invalid interface.

This in turn could cause the driver to misbehave or trigger a WARN() in
usb_submit_urb() that kernels with panic_on_warn set would choke on.

Fixes: 162f98dea4 ("Input: gtco - fix crash on detecting device without endpoints")
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Vladis Dronov <vdronov@redhat.com>
Link: https://lore.kernel.org/r/20191210113737.4016-5-johan@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-01-10 14:42:57 -08:00
Johan Hovold
cfa4f6a99f Input: aiptek - use descriptors of current altsetting
Make sure to always use the descriptors of the current alternate setting
to avoid future issues when accessing fields that may differ between
settings.

Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Vladis Dronov <vdronov@redhat.com>
Link: https://lore.kernel.org/r/20191210113737.4016-4-johan@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-01-10 14:42:56 -08:00
Johan Hovold
3111491fca Input: aiptek - fix endpoint sanity check
The driver was checking the number of endpoints of the first alternate
setting instead of the current one, something which could lead to the
driver binding to an invalid interface.

This in turn could cause the driver to misbehave or trigger a WARN() in
usb_submit_urb() that kernels with panic_on_warn set would choke on.

Fixes: 8e20cf2bce ("Input: aiptek - fix crash on detecting device without endpoints")
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Vladis Dronov <vdronov@redhat.com>
Link: https://lore.kernel.org/r/20191210113737.4016-3-johan@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-01-10 14:42:54 -08:00
Johan Hovold
bcfcb7f9b4 Input: pegasus_notetaker - fix endpoint sanity check
The driver was checking the number of endpoints of the first alternate
setting instead of the current one, something which could be used by a
malicious device (or USB descriptor fuzzer) to trigger a NULL-pointer
dereference.

Fixes: 1afca2b66a ("Input: add Pegasus Notetaker tablet driver")
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Martin Kepplinger <martink@posteo.de>
Acked-by: Vladis Dronov <vdronov@redhat.com>
Link: https://lore.kernel.org/r/20191210113737.4016-2-johan@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-01-10 14:42:53 -08:00
Krzysztof Kozlowski
bcf1e034d3 Input: fix Kconfig indentation
Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:
	$ sed -e 's/^        /\t/' -i */Kconfig

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/1574306373-29581-1-git-send-email-krzk@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-11-22 15:19:19 -08:00
Oliver Neukum
c88090dfc8 Input: kbtab - sanity check for endpoint type
The driver should check whether the endpoint it uses has the correct
type.

Reported-by: syzbot+c7df50363aaff50aa363@syzkaller.appspotmail.com
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-01 10:55:21 -07:00
Dmitry Torokhov
ecb41832bd Merge tag 'v5.2' into next
Sync up with mainline to resolve conflicts in iforce driver.
2019-07-15 09:42:32 -07:00
Grant Hernandez
2a017fd82c Input: gtco - bounds check collection indent level
The GTCO tablet input driver configures itself from an HID report sent
via USB during the initial enumeration process. Some debugging messages
are generated during the parsing. A debugging message indentation
counter is not bounds checked, leading to the ability for a specially
crafted HID report to cause '-' and null bytes be written past the end
of the indentation array. As long as the kernel has CONFIG_DYNAMIC_DEBUG
enabled, this code will not be optimized out.  This was discovered
during code review after a previous syzkaller bug was found in this
driver.

Signed-off-by: Grant Hernandez <granthernandez@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-07-13 01:43:10 -07:00
Thomas Gleixner
1a59d1b8e0 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details you
  should have received a copy of the gnu general public license along
  with this program if not write to the free software foundation inc
  59 temple place suite 330 boston ma 02111 1307 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1334 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:35 -07:00
Thomas Gleixner
83cde38357 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 55
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version of 2 of the license or
  at your option any later version

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 4 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190520071858.207758043@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-24 17:36:42 +02:00