linux/drivers/hid
Hans de Goede 8ccff2843f HID: logitech-dj: Fix crash when initial logi_dj_recv_query_paired_devices fails
Before this commit dj_probe would exit with an error if the initial
logi_dj_recv_query_paired_devices fails. The initial call may fail
when the receiver is connected through a kvm and the focus is away.

When the call fails this causes 2 problems:

1) dj_probe calls logi_dj_recv_query_paired_devices after calling
hid_device_io_start() so a HID report may have been received in between
and our delayedwork_callback may be running. It seems that the initial
logi_dj_recv_query_paired_devices failure happening with some KVMs triggers
this exact scenario, causing the work-queue to run on free-ed memory,
leading to:

 BUG: unable to handle page fault for address: 0000000000001e88
 #PF: supervisor read access in kernel mode
 #PF: error_code(0x0000) - not-present page
 PGD 0 P4D 0
 Oops: 0000 [#1] SMP PTI
 CPU: 3 PID: 257 Comm: kworker/3:3 Tainted: G           OE     5.3.0-rc5+ #100
 Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./B150M Pro4S/D3, BIOS P7.10 12/06/2016
 Workqueue: events 0xffffffffc02ba200
 RIP: 0010:0xffffffffc02ba1bd
 Code: e8 e8 13 00 d8 48 89 c5 48 85 c0 74 4c 48 8b 7b 10 48 89 ea b9 07 00 00 00 41 b9 09 00 00 00 41 b8 01 00 00 00 be 10 00 00 00 <48> 8b 87 88 1e 00 00 48 8b 40 40 e8 b3 6b b4 d8 48 89 ef 41 89 c4
 RSP: 0018:ffffb760c046bdb8 EFLAGS: 00010286
 RAX: ffff935038ea4550 RBX: ffff935046778000 RCX: 0000000000000007
 RDX: ffff935038ea4550 RSI: 0000000000000010 RDI: 0000000000000000
 RBP: ffff935038ea4550 R08: 0000000000000001 R09: 0000000000000009
 R10: 000000000000e011 R11: 0000000000000001 R12: ffff9350467780e8
 R13: ffff935046778000 R14: 0000000000000000 R15: ffff935046778070
 FS:  0000000000000000(0000) GS:ffff935054e00000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 0000000000001e88 CR3: 000000075a612002 CR4: 00000000003606e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  0xffffffffc02ba2f7
  ? process_one_work+0x1b1/0x560
  process_one_work+0x234/0x560
  worker_thread+0x50/0x3b0
  kthread+0x10a/0x140
  ? process_one_work+0x560/0x560
  ? kthread_park+0x80/0x80
  ret_from_fork+0x3a/0x50
 Modules linked in: vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) bnep vfat fat btusb btrtl btbcm btintel bluetooth intel_rapl_msr ecdh_generic rfkill ecc snd_usb_audio snd_usbmidi_lib intel_rapl_common snd_rawmidi mc x86_pkg_temp_thermal intel_powerclamp coretemp iTCO_wdt iTCO_vendor_support mei_wdt mei_hdcp ppdev kvm_intel kvm irqbypass crct10dif_pclmul crc32_generic crc32_pclmul snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio ghash_clmulni_intel intel_cstate snd_hda_intel snd_hda_codec intel_uncore snd_hda_core snd_hwdep intel_rapl_perf snd_seq snd_seq_device snd_pcm snd_timer intel_wmi_thunderbolt snd e1000e soundcore mxm_wmi i2c_i801 bfq mei_me mei intel_pch_thermal parport_pc parport acpi_pad binfmt_misc hid_lg_g15(E) hid_logitech_dj(E) i915 crc32c_intel i2c_algo_bit drm_kms_helper nvme nvme_core drm wmi video uas usb_storage i2c_dev
 CR2: 0000000000001e88
 ---[ end trace 1d3f8afdcfcbd842 ]---

2) Even if we were to fix 1. by making sure the work is stopped before
failing probe, failing probe is the wrong thing to do, we have
logi_dj_recv_queue_unknown_work to deal with the initial
logi_dj_recv_query_paired_devices failure.

Rather then error-ing out of the probe, causing the receiver to not work at
all we should rely on this, so that the attached devices will get properly
enumerated once the KVM focus is switched back.

Cc: stable@vger.kernel.org
Fixes: 74808f9115 ("HID: logitech-dj: add support for non unifying receivers")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2019-08-26 11:34:23 +02:00
..
i2c-hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid 2019-06-13 05:59:05 -10:00
intel-ish-hid HID: intel-ish-hid: ipc: add EHL device id 2019-08-19 14:10:41 +02:00
usbhid HID: hiddev: do cleanup in failure of opening a device 2019-08-06 12:42:22 +02:00
hid-a4tech.c HID: input: fix a4tech horizontal wheel custom usage 2019-08-05 14:37:15 +02:00
hid-accutouch.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
hid-alps.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
hid-apple.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
hid-appleir.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
hid-asus.c platform-drivers-x86 for v5.3-1 2019-07-14 16:51:47 -07:00
hid-aureal.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
hid-axff.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
hid-belkin.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
hid-betopff.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
hid-bigbenff.c HID: hid-bigbenff: driver for BigBen Interactive PS3OFMINIPAD gamepad 2018-09-24 11:49:32 +02:00
hid-cherry.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
hid-chicony.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
hid-cmedia.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
hid-core.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid 2019-06-13 05:59:05 -10:00
hid-corsair.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
hid-cougar.c HID: cougar: Add support for Cougar 700K Gaming Keyboard 2018-11-21 14:41:43 +01:00
hid-cp2112.c HID: cp2112: prevent sleeping function called from invalid context 2019-08-19 14:13:00 +02:00
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hid-dr.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
hid-elan.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
hid-elecom.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
hid-elo.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 307 2019-06-05 17:37:04 +02:00
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hid-ezkey.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
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hid-gfrm.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
hid-google-hammer.c HID: google: drop superfluous const before SIMPLE_DEV_PM_OPS() 2018-10-09 10:43:39 +02:00
hid-gt683r.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
hid-gyration.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
hid-holtek-kbd.c HID: holtek: test for sanity of intfdata 2019-08-05 14:18:42 +02:00
hid-holtek-mouse.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
hid-holtekff.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
hid-hyperv.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid 2019-06-13 05:59:05 -10:00
hid-icade.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
hid-ids.h HID: Add quirk for HP X1200 PIXART OEM mouse 2019-08-05 14:25:16 +02:00
hid-input.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
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hid-lg3ff.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
hid-lg4ff.c HID: logitech: Fix general protection fault caused by Logitech driver 2019-08-22 09:53:08 +02:00
hid-lg4ff.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hid-lg.c HID: logitech: Fix general protection fault caused by Logitech driver 2019-08-22 09:53:08 +02:00
hid-lg.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hid-lgff.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
hid-logitech-dj.c HID: logitech-dj: Fix crash when initial logi_dj_recv_query_paired_devices fails 2019-08-26 11:34:23 +02:00
hid-logitech-hidpp.c HID: logitech-hidpp: remove support for the G700 over USB 2019-08-13 16:29:46 +02:00
hid-macally.c HID: macally: Add support for Macally ikey keyboard 2019-04-03 17:14:13 +02:00
hid-magicmouse.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
hid-maltron.c Support for Maltron L90 keyboard media keys 2019-01-14 20:11:01 +01:00
hid-mf.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
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hid-monterey.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
hid-multitouch.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid 2019-06-28 08:39:18 +08:00
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hid-picolcd_debugfs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 265 2019-06-05 17:30:28 +02:00
hid-picolcd_fb.c video: fbdev: don't print error message on framebuffer_alloc() failure 2019-06-28 12:30:08 +02:00
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hid-quirks.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid 2019-08-06 11:47:23 -07:00
hid-redragon.c HID: redragon: fix num lock and caps lock LEDs 2018-06-25 15:23:40 +02:00
hid-retrode.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
hid-rmi.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid 2019-06-13 05:59:05 -10:00
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hid-sensor-custom.c *: convert stream-like files -> stream_open, even if they use noop_llseek 2019-07-14 16:09:19 +03:00
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hid-sony.c HID: sony: Fix race condition between rumble and device remove. 2019-08-06 12:46:15 +02:00
hid-speedlink.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
hid-steam.c HID: steam: fix deadlock with input devices. 2019-03-18 14:44:20 +01:00
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hid-tmff.c HID: Add 044f:b320 ThrustMaster, Inc. 2 in 1 DT 2019-07-17 14:34:42 +02:00
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hid-twinhan.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 178 2019-05-30 11:29:19 -07:00
hid-u2fzero.c HID: u2fzero: fail probe if not using USB transport 2019-04-17 16:39:43 +02:00
hid-uclogic-core.c Merge branch 'for-5.3/uclogic' into for-linus 2019-07-10 01:40:23 +02:00
hid-uclogic-params.c Merge branch 'for-5.3/uclogic' into for-linus 2019-07-10 01:40:23 +02:00
hid-uclogic-params.h HID: uclogic: Support Gray-coded rotary encoders 2019-02-21 12:00:54 +01:00
hid-uclogic-rdesc.c HID: uclogic: Add support for Ugee G5 2019-02-21 12:00:54 +01:00
hid-uclogic-rdesc.h HID: uclogic: Add support for Ugee G5 2019-02-21 12:00:54 +01:00
hid-udraw-ps3.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
hid-viewsonic.c HID: viewsonic: Support PD1011 signature pad 2019-02-21 12:00:53 +01:00
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hidraw.c HID: hidraw: Fix invalid read in hidraw_ioctl 2019-08-22 09:50:25 +02:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile Merge branches 'for-5.1/upstream-fixes', 'for-5.2/core', 'for-5.2/ish', 'for-5.2/logitech', 'for-5.2/macally', 'for-5.2/picolcd', 'for-5.2/sensor' and 'for-5.2/u2fzero' into for-linus 2019-05-06 15:45:18 +02:00
uhid.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
wacom_sys.c Merge branches 'for-5.2/fixes', 'for-5.3/doc', 'for-5.3/ish', 'for-5.3/logitech' and 'for-5.3/wacom' into for-linus 2019-07-10 01:39:57 +02:00
wacom_wac.c HID: wacom: correct misreported EKR ring values 2019-08-20 10:40:40 +02:00
wacom_wac.h Merge branches 'for-5.2/fixes', 'for-5.3/doc', 'for-5.3/ish', 'for-5.3/logitech' and 'for-5.3/wacom' into for-linus 2019-07-10 01:39:57 +02:00
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