linux-stable.git/drivers/usb/core, branch v3.18.76

USB: fix out-of-bounds in usb_set_configuration

2017-10-12T07:18:02+00:00

commit bd7a3fe770ebd8391d1c7d072ff88e9e76d063eb upstream.

Andrey Konovalov reported a possible out-of-bounds problem for a USB interface
association descriptor.  He writes:
	It seems there's no proper size check of a USB_DT_INTERFACE_ASSOCIATION
	descriptor. It's only checked that the size is >= 2 in
	usb_parse_configuration(), so find_iad() might do out-of-bounds access
	to intf_assoc->bInterfaceCount.

And he's right, we don't check for crazy descriptors of this type very well, so
resolve this problem.  Yet another issue found by syzkaller...

Reported-by: Andrey Konovalov 
Tested-by: Andrey Konovalov 
Signed-off-by: Greg Kroah-Hartman

usb: Increase quirk delay for USB devices

2017-10-12T07:18:01+00:00

commit b2a542bbb3081dbd64acc8929c140d196664c406 upstream.

Commit e0429362ab15
("usb: Add device quirk for Logitech HD Pro Webcams C920 and C930e")
introduced quirk to workaround an issue with some Logitech webcams.

The workaround is introducing delay for some USB operations.

According to our testing, delay introduced by original commit
is not long enough and in rare cases we still see issues described
by the aforementioned commit.

This patch increases delays introduced by original commit.
Having this patch applied we do not see those problems anymore.

Signed-off-by: Dmitry Fleytman 
Signed-off-by: Greg Kroah-Hartman

USB: devio: Don't corrupt user memory

2017-10-12T07:18:01+00:00

commit fa1ed74eb1c233be6131ec92df21ab46499a15b6 upstream.

The user buffer has "uurb->buffer_length" bytes.  If the kernel has more
information than that, we should truncate it instead of writing past
the end of the user's buffer.  I added a WARN_ONCE() to help the user
debug the issue.

Reported-by: Alan Stern 
Signed-off-by: Dan Carpenter 
Acked-by: Alan Stern 
Signed-off-by: Greg Kroah-Hartman

USB: core: Avoid race of async_completed() w/ usbdev_release()

2017-09-13T21:03:46+00:00

commit ed62ca2f4f51c17841ea39d98c0c409cb53a3e10 upstream.

While running reboot tests w/ a specific set of USB devices (and
slub_debug enabled), I found that once every few hours my device would
be crashed with a stack that looked like this:

[   14.012445] BUG: spinlock bad magic on CPU#0, modprobe/2091
[   14.012460]  lock: 0xffffffc0cb055978, .magic: ffffffc0, .owner: cryption contexts: %lu/%lu
[   14.012460] /1025536097, .owner_cpu: 0
[   14.012466] CPU: 0 PID: 2091 Comm: modprobe Not tainted 4.4.79 #352
[   14.012468] Hardware name: Google Kevin (DT)
[   14.012471] Call trace:
[   14.012483] [<....>] dump_backtrace+0x0/0x160
[   14.012487] [<....>] show_stack+0x20/0x28
[   14.012494] [<....>] dump_stack+0xb4/0xf0
[   14.012500] [<....>] spin_dump+0x8c/0x98
[   14.012504] [<....>] spin_bug+0x30/0x3c
[   14.012508] [<....>] do_raw_spin_lock+0x40/0x164
[   14.012515] [<....>] _raw_spin_lock_irqsave+0x64/0x74
[   14.012521] [<....>] __wake_up+0x2c/0x60
[   14.012528] [<....>] async_completed+0x2d0/0x300
[   14.012534] [<....>] __usb_hcd_giveback_urb+0xc4/0x138
[   14.012538] [<....>] usb_hcd_giveback_urb+0x54/0xf0
[   14.012544] [<....>] xhci_irq+0x1314/0x1348
[   14.012548] [<....>] usb_hcd_irq+0x40/0x50
[   14.012553] [<....>] handle_irq_event_percpu+0x1b4/0x3f0
[   14.012556] [<....>] handle_irq_event+0x4c/0x7c
[   14.012561] [<....>] handle_fasteoi_irq+0x158/0x1c8
[   14.012564] [<....>] generic_handle_irq+0x30/0x44
[   14.012568] [<....>] __handle_domain_irq+0x90/0xbc
[   14.012572] [<....>] gic_handle_irq+0xcc/0x18c

Investigation using kgdb() found that the wait queue that was passed
into wake_up() had been freed (it was filled with slub_debug poison).

I analyzed and instrumented the code and reproduced.  My current
belief is that this is happening:

1. async_completed() is called (from IRQ).  Moves "as" onto the
   completed list.
2. On another CPU, proc_reapurbnonblock_compat() calls
   async_getcompleted().  Blocks on spinlock.
3. async_completed() releases the lock; keeps running; gets blocked
   midway through wake_up().
4. proc_reapurbnonblock_compat() => async_getcompleted() gets the
   lock; removes "as" from completed list and frees it.
5. usbdev_release() is called.  Frees "ps".
6. async_completed() finally continues running wake_up().  ...but
   wake_up() has a pointer to the freed "ps".

The instrumentation that led me to believe this was based on adding
some trace_printk() calls in a select few functions and then using
kdb's "ftdump" at crash time.  The trace follows (NOTE: in the trace
below I cheated a little bit and added a udelay(1000) in
async_completed() after releasing the spinlock because I wanted it to
trigger quicker):

<...>-2104   0d.h2 13759034us!: async_completed at start: as=ffffffc0cc638200
mtpd-2055    3.... 13759356us : async_getcompleted before spin_lock_irqsave
mtpd-2055    3d..1 13759362us : async_getcompleted after list_del_init: as=ffffffc0cc638200
mtpd-2055    3.... 13759371us+: proc_reapurbnonblock_compat: free_async(ffffffc0cc638200)
mtpd-2055    3.... 13759422us+: async_getcompleted before spin_lock_irqsave
mtpd-2055    3.... 13759479us : usbdev_release at start: ps=ffffffc0cc042080
mtpd-2055    3.... 13759487us : async_getcompleted before spin_lock_irqsave
mtpd-2055    3.... 13759497us!: usbdev_release after kfree(ps): ps=ffffffc0cc042080
<...>-2104   0d.h2 13760294us : async_completed before wake_up(): as=ffffffc0cc638200

To fix this problem we can just move the wake_up() under the ps->lock.
There should be no issues there that I'm aware of.

Signed-off-by: Douglas Anderson 
Acked-by: Alan Stern 
Signed-off-by: Greg Kroah-Hartman

usb: Add device quirk for Logitech HD Pro Webcam C920-C

2017-09-13T21:03:45+00:00

commit a1279ef74eeeb5f627f091c71d80dd7ac766c99d upstream.

Commit e0429362ab15
("usb: Add device quirk for Logitech HD Pro Webcams C920 and C930e")
introduced quirk to workaround an issue with some Logitech webcams.

Apparently model C920-C has the same issue so applying
the same quirk as well.

See aforementioned commit message for detailed explanation of the problem.

Signed-off-by: Dmitry Fleytman 
Signed-off-by: Greg Kroah-Hartman

usb: quirks: add delay init quirk for Corsair Strafe RGB keyboard

2017-09-13T21:03:45+00:00

commit de3af5bf259d7a0bfaac70441c8568ab5998d80c upstream.

Corsair Strafe RGB keyboard has trouble to initialize:

[ 1.679455] usb 3-6: new full-speed USB device number 4 using xhci_hcd
[ 6.871136] usb 3-6: unable to read config index 0 descriptor/all
[ 6.871138] usb 3-6: can't read configurations, error -110
[ 6.991019] usb 3-6: new full-speed USB device number 5 using xhci_hcd
[ 12.246642] usb 3-6: unable to read config index 0 descriptor/all
[ 12.246644] usb 3-6: can't read configurations, error -110
[ 12.366555] usb 3-6: new full-speed USB device number 6 using xhci_hcd
[ 17.622145] usb 3-6: unable to read config index 0 descriptor/all
[ 17.622147] usb 3-6: can't read configurations, error -110
[ 17.742093] usb 3-6: new full-speed USB device number 7 using xhci_hcd
[ 22.997715] usb 3-6: unable to read config index 0 descriptor/all
[ 22.997716] usb 3-6: can't read configurations, error -110

Although it may work after several times unpluging/pluging:

[ 68.195240] usb 3-6: new full-speed USB device number 11 using xhci_hcd
[ 68.337459] usb 3-6: New USB device found, idVendor=1b1c, idProduct=1b20
[ 68.337463] usb 3-6: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 68.337466] usb 3-6: Product: Corsair STRAFE RGB Gaming Keyboard
[ 68.337468] usb 3-6: Manufacturer: Corsair
[ 68.337470] usb 3-6: SerialNumber: 0F013021AEB8046755A93ED3F5001941

Tried three quirks: USB_QUIRK_DELAY_INIT, USB_QUIRK_NO_LPM and
USB_QUIRK_DEVICE_QUALIFIER, user confirmed that USB_QUIRK_DELAY_INIT alone
can workaround this issue. Hence add the quirk for Corsair Strafe RGB.

BugLink: https://bugs.launchpad.net/bugs/1678477
Signed-off-by: Kai-Heng Feng 
Signed-off-by: Greg Kroah-Hartman

usb:xhci:Add quirk for Certain failing HP keyboard on reset after resume

2017-08-16T20:35:31+00:00

commit e788787ef4f9c24aafefc480a8da5f92b914e5e6 upstream.

Certain HP keyboards would keep inputting a character automatically which
is the wake-up key after S3 resume

On some AMD platforms USB host fails to respond (by holding resume-K) to
USB device (an HP keyboard) resume request within 1ms (TURSM) and ensures
that resume is signaled for at least 20 ms (TDRSMDN), which is defined in
USB 2.0 spec. The result is that the keyboard is out of function.

In SNPS USB design, the host responds to the resume request only after
system gets back to S0 and the host gets to functional after the internal
HW restore operation that is more than 1 second after the initial resume
request from the USB device.

As a workaround for specific keyboard ID(HP Keyboards), applying port reset
after resume when the keyboard is plugged in.

Signed-off-by: Sandeep Singh 
Signed-off-by: Shyam Sundar S K 
cc: Nehal Shah 
Reviewed-by: Felipe Balbi 
Signed-off-by: Greg Kroah-Hartman

usb: quirks: Add no-lpm quirk for Moshi USB to Ethernet Adapter

2017-08-16T20:35:31+00:00

commit 7496cfe5431f21da5d27a8388c326397e3f0a5db upstream.

Moshi USB to Ethernet Adapter internally uses a Genesys Logic hub to
connect to Realtek r8153.

The Realtek r8153 ethernet does not work on the internal hub, no-lpm quirk
can make it work.

Since another r8153 dongle at my hand does not have the issue, so add
the quirk to the Genesys Logic hub instead.

Signed-off-by: Kai-Heng Feng 
Signed-off-by: Greg Kroah-Hartman

USB: Check for dropped connection before switching to full speed

2017-08-16T20:35:31+00:00

commit 94c43b9897abf4ea366ed4dba027494e080c7050 upstream.

Some buggy USB disk adapters disconnect and reconnect multiple times
during the enumeration procedure.  This may lead to a device
connecting at full speed instead of high speed, because when the USB
stack sees that a device isn't able to enumerate at high speed, it
tries to hand the connection over to a full-speed companion
controller.

The logic for doing this is careful to check that the device is still
connected.  But this check is inadequate if the device disconnects and
reconnects before the check is done.  The symptom is that a device
works, but much more slowly than it is capable of operating.

The situation was made worse recently by commit 22547c4cc4fe ("usb:
hub: Wait for connection to be reestablished after port reset"), which
increases the delay following a reset before a disconnect is
recognized, thus giving the device more time to reconnect.

This patch makes the check more robust.  If the device was
disconnected at any time during enumeration, we will now skip the
full-speed handover.

Signed-off-by: Alan Stern 
Reported-and-tested-by: Zdenek Kabelac 
Reviewed-by: Guenter Roeck 
Signed-off-by: Greg Kroah-Hartman

USB: hcd: Mark secondary HCD as dead if the primary one died

2017-08-16T20:35:31+00:00

commit cd5a6a4fdaba150089af2afc220eae0fef74878a upstream.

Make usb_hc_died() clear the HCD_FLAG_RH_RUNNING flag for the shared
HCD and set HCD_FLAG_DEAD for it, in analogy with what is done for
the primary one.

Among other thigs, this prevents check_root_hub_suspended() from
returning -EBUSY for dead HCDs which helps to work around system
suspend issues in some situations.

This actually fixes occasional suspend failures on one of my test
machines.

Suggested-by: Alan Stern 
Signed-off-by: Rafael J. Wysocki 
Acked-by: Alan Stern 
Signed-off-by: Greg Kroah-Hartman