linux-stable.git/drivers, branch v3.2.83

USB: usbfs: fix potential infoleak in devio

2016-08-22T21:37:18+00:00

commit 681fef8380eb818c0b845fca5d2ab1dcbab114ee upstream.

The stack object “ci” has a total size of 8 bytes. Its last 3 bytes
are padding bytes which are not initialized and leaked to userland
via “copy_to_user”.

Signed-off-by: Kangjie Lu 
Signed-off-by: Greg Kroah-Hartman 
Signed-off-by: Ben Hutchings

qeth: delete napi struct when removing a qeth device

2016-08-22T21:37:18+00:00

commit 7831b4ff0d926e0deeaabef9db8800ed069a2757 upstream.

A qeth_card contains a napi_struct linked to the net_device during
device probing. This struct must be deleted when removing the qeth
device, otherwise Panic on oops can occur when qeth devices are
repeatedly removed and added.

Fixes: a1c3ed4c9ca ("qeth: NAPI support for l2 and l3 discipline")
Signed-off-by: Ursula Braun 
Tested-by: Alexander Klein 
Signed-off-by: David S. Miller 
Signed-off-by: Ben Hutchings

bonding: prevent out of bound accesses

2016-08-22T21:37:17+00:00

commit f87fda00b6ed232a817c655b8d179b48bde8fdbe upstream.

ether_addr_equal_64bits() requires some care about its arguments,
namely that 8 bytes might be read, even if last 2 byte values are not
used.

KASan detected a violation with null_mac_addr and lacpdu_mcast_addr
in bond_3ad.c

Same problem with mac_bcast[] and mac_v6_allmcast[] in bond_alb.c :
Although the 8-byte alignment was there, KASan would detect out
of bound accesses.

Fixes: 815117adaf5b ("bonding: use ether_addr_equal_unaligned for bond addr compare")
Fixes: bb54e58929f3 ("bonding: Verify RX LACPDU has proper dest mac-addr")
Fixes: 885a136c52a8 ("bonding: use compare_ether_addr_64bits() in ALB")
Signed-off-by: Eric Dumazet 
Reported-by: Dmitry Vyukov 
Acked-by: Dmitry Vyukov 
Acked-by: Nikolay Aleksandrov 
Acked-by: Ding Tianhong 
Signed-off-by: David S. Miller 
[bwh: Backported to 3.2:
 - Adjust filename
 - Drop change to bond_params::ad_actor_system
 - Fix one more copy of null_mac_addr to use eth_zero_addr()]
Signed-off-by: Ben Hutchings

iio: accel: kxsd9: fix the usage of spi_w8r8()

2016-08-22T21:37:17+00:00

commit 0c1f91b98552da49d9d8eed32b3132a58d2f4598 upstream.

These two spi_w8r8() calls return a value with is used by the code
following the error check. The dubious use was caused by a cleanup
patch.

Fixes: d34dbee8ac8e ("staging:iio:accel:kxsd9 cleanup and conversion to iio_chan_spec.")
Signed-off-by: Linus Walleij 
Signed-off-by: Jonathan Cameron 
[bwh: Backported to 3.2: adjust filename]
Signed-off-by: Ben Hutchings

staging: iio: accel: fix error check

2016-08-22T21:37:16+00:00

commit ef3149eb3ddb7f9125e11c90f8330e371b55cffd upstream.

sca3000_read_ctrl_reg() returns a negative number on failure, check for
this instead of zero.

Signed-off-by: Luis de Bethencourt 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Ben Hutchings

HID: hiddev: validate num_values for HIDIOCGUSAGES, HIDIOCSUSAGES commands

2016-08-22T21:37:16+00:00

commit 93a2001bdfd5376c3dc2158653034c20392d15c5 upstream.

This patch validates the num_values parameter from userland during the
HIDIOCGUSAGES and HIDIOCSUSAGES commands. Previously, if the report id was set
to HID_REPORT_ID_UNKNOWN, we would fail to validate the num_values parameter
leading to a heap overflow.

Signed-off-by: Scott Bauer 
Signed-off-by: Jiri Kosina 
Signed-off-by: Ben Hutchings

Input: elantech - add more IC body types to the list

2016-08-22T21:37:16+00:00

commit 226ba707744a51acb4244724e09caacb1d96aed9 upstream.

The touchpad in HP Pavilion 14-ab057ca reports it's version as 12 and
according to Elan both 11 and 12 are valid IC types and should be
identified as hw_version 4.

Reported-by: Patrick Lessard 
Tested-by: Patrick Lessard 
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Ben Hutchings

Input: wacom_w8001 - w8001_MAX_LENGTH should be 13

2016-08-22T21:37:16+00:00

commit 12afb34400eb2b301f06b2aa3535497d14faee59 upstream.

Somehow the patch that added two-finger touch support forgot to update
W8001_MAX_LENGTH from 11 to 13.

Signed-off-by: Ping Cheng 
Reviewed-by: Peter Hutterer 
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Ben Hutchings

IB/mlx4: Fix the SQ size of an RC QP

2016-08-22T21:37:16+00:00

commit f2940e2c76bb554a7fbdd28ca5b90904117a9e96 upstream.

When calculating the required size of an RC QP send queue, leave
enough space for masked atomic operations, which require more space than
"regular" atomic operation.

Fixes: 6fa8f719844b ("IB/mlx4: Add support for masked atomic operations")
Signed-off-by: Yishai Hadas 
Reviewed-by: Jack Morgenstein 
Reviewed-by: Eran Ben Elisha 
Signed-off-by: Leon Romanovsky 
Signed-off-by: Doug Ledford 
Signed-off-by: Ben Hutchings

xen/pciback: Fix conf_space read/write overlap check.

2016-08-22T21:37:16+00:00

commit 02ef871ecac290919ea0c783d05da7eedeffc10e upstream.

Current overlap check is evaluating to false a case where a filter
field is fully contained (proper subset) of a r/w request.  This
change applies classical overlap check instead to include all the
scenarios.

More specifically, for (Hilscher GmbH CIFX 50E-DP(M/S)) device driver
the logic is such that the entire confspace is read and written in 4
byte chunks. In this case as an example, CACHE_LINE_SIZE,
LATENCY_TIMER and PCI_BIST are arriving together in one call to
xen_pcibk_config_write() with offset == 0xc and size == 4.  With the
exsisting overlap check the LATENCY_TIMER field (offset == 0xd, length
== 1) is fully contained in the write request and hence is excluded
from write, which is incorrect.

Signed-off-by: Andrey Grodzovsky 
Reviewed-by: Boris Ostrovsky 
Reviewed-by: Jan Beulich 
Signed-off-by: David Vrabel 
Signed-off-by: Ben Hutchings