commit 3b1cc9b9622a022208ec95b1259b05bbdf712eb7 upstream. iovcnt is declared as a signed integer in both the userspace API and as a local variable in mic_virtio.c. The while() loop in mic_virtio.c iterates until the local variable iovcnt reaches the value 0. If userspace passes e.g. INT_MIN as iovcnt field, this loop then appears to depend on an undefined behavior (signed underflow) to complete. The fix is to use unsigned integers in both the userspace API and the local variable. This issue was reported @ https://lkml.org/lkml/2014/1/10/10 Reported-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com> Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull input updates from Dmitry Torokhov: "A fix for a panic in gpio-keys driver when set up with absolute events, a fixup to the new zforce driver and a new keycode definition" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: allocate absinfo data when setting ABS capability Input: define KEY_WWAN for Wireless WAN Input: zforce - fix possible driver hang during suspend
Pull perf fixes from Ingo Molnar: "An ABI documentation fix, and a mixed-PMU perf-info-corruption fix" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: Document the new transaction sample type perf: Disable all pmus on unthrottling and rescheduling
Commit fdfbbd07e91f8fe3871 ("perf: Add generic transaction flags")
added support for PERF_SAMPLE_TRANSACTION but forgot to add documentation
for the sample type to include/uapi/linux/perf_event.h
Signed-off-by: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Andi Kleen <ak@linux.intel.com>
Link: http://lkml.kernel.org/r/alpine.DEB.2.02.1312131548450.10372@pianoman.cluster.toy
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Some devices with support for mobile networks may have buttons for enabling/disabling such connection. An example can be Linksys router 54G3G. We already have KEY_BLUETOOTH, KEY_WLAN and KEY_UWB so it makes sense to add KEY_WWAN as well. As we already have KEY_WIMAX, use it's value for KEY_WWAN and make it an alias. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Merging with the mainline to sync up on changes to serio core.
Pull input updates from Dmitry Torokhov: "An update to ALPS to support devices on Dell XT2 (hopefully working better this time around and although it is largish it should not affect any other ALPS devices) and a tiny update to Elantech driver to support newer devices as well. Also a coupe of new input event codes have been defined" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: ALPS - add support for DualPoint device on Dell XT2 model Input: elantech - add support for newer (August 2013) devices Input: add SW_MUTE_DEVICE switch definition Input: usbtouchscreen - separate report and transmit buffer size handling Input: sur40 - suppress false uninitialized variable warning Input: add key code for ambient light sensor button Input: keyboard - "keycode & KEY_MAX" changes some keycode values
Pull char/misc driver fixes from Greg KH: "Nothing huge, just a few small bugfixes for problems reported, and a device id update" * tag 'char-misc-3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: mei: add 9 series PCH mei device ids drivers/char/i8k.c: add Dell XPLS L421X MAINTAINERS: add HSI subsystem misc: mic: Suppress memory space sparse warnings misc: mic: Fix endianness issues. misc: mic: Fix user space namespace pollution from mic_common.h. misc: mic: Bug fix for sysfs poll usage. misc: mic: Minor bug fix in 'retry' loops. misc: mic: Change mic_notify(...) to return true. extcon: remove freed groups caused the panic or warning in unregister flow extcon: arizona: Get pdata from arizona structure not device
Pull power management fixes from Rafael Wysocki: - cpufreq regression fix from Bjørn Mork restoring the pre-3.12 behavior of the framework during system suspend/hibernation to avoid garbage sysfs files from being left behind in case of a suspend error - PNP regression fix to restore the correct states of devices after resume from hibernation broken in 3.12. From Dmitry Torokhov. - cpuidle fix to prevent cpuidle device unregistration from crashing due to a NULL pointer dereference if cpuidle has been disabled from the kernel command line. From Konrad Rzeszutek Wilk. - intel_idle fix for the C6 state definition on Intel Avoton/Rangeley processors from Arne Bockholdt. - Power capping framework fix to make the energy_uj sysfs attribute work in accordance with the documentation. From Srinivas Pandruvada. - epoll fix to make it ignore the EPOLLWAKEUP flag if the kernel has been compiled with CONFIG_PM_SLEEP unset (in which case that flag should not have any effect). From Amit Pundir. - cpufreq fix to prevent governor sysfs files from being lost over system suspend/resume in some (arguably unusual) situations. From Viresh Kumar. * tag 'pm-3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PowerCap: Fix mode for energy counter PNP: fix restoring devices after hibernation cpuidle: Check for dev before deregistering it. epoll: drop EPOLLWAKEUP if PM_SLEEP is disabled cpufreq: fix garbage kobjects on errors during suspend/resume cpufreq: suspend governors on system suspend/hibernate intel_idle: Fixed C6 state on Avoton/Rangeley processors
Some devices, such as new Intuos series tablets, have a hardware switch to turn touch data on/off. To report the state, SW_MUTE_DEVICE is added in include/uapi/linux/input.h. Reviewed_by: Chris Bagwell <chris@cnpbagwell.com> Acked-by: Peter Hutterer <peter.hutterer@who-t.net> Tested-by: Jason Gerecke <killertofu@gmail.com> Signed-off-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>