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Rafael J. Wysocki 623cf33cb0 ACPI / PM: Walk physical_node_list under physical_node_lock 
The list of physical devices corresponding to an ACPI device
object is walked by acpi_system_wakeup_device_seq_show() and
physical_device_enable_wakeup() without taking that object's
physical_node_lock mutex.  Since each of those functions may be
run at any time as a result of a user space action, the lack of
appropriate locking in them may lead to a kernel crash if that
happens during device hot-add or hot-remove involving the device
object in question.

Fix the issue by modifying acpi_system_wakeup_device_seq_show() and
physical_device_enable_wakeup() to use physical_node_lock as
appropriate.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: All <stable@vger.kernel.org>
 		2013-08-06 02:26:22 +02:00
..
acpica ACPICA: expose OSI version 2013-07-18 01:29:14 +02:00
apei Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-07-04 10:29:23 -07:00
Kconfig Merge branch 'acpi-assorted' 2013-04-28 01:54:08 +02:00
Makefile Merge branch 'acpi-assorted' 2013-06-28 13:00:38 +02:00
ac.c ACPI / AC: Add sleep quirk for Thinkpad e530 2013-05-12 14:03:15 +02:00
acpi_cmos_rtc.c ACPI: Add CMOS RTC Operation Region handler support 2013-06-27 21:35:37 +02:00
acpi_i2c.c ACPI / I2C: Use parent's ACPI_HANDLE() in acpi_i2c_register_devices() 2013-04-02 15:30:41 +02:00
acpi_ipmi.c IPMI/ACPI: Add the IPMI opregion driver to enable ACPI to access BMC controller 2010-12-14 00:22:14 -05:00
acpi_lpss.c Merge branch 'acpi-lpss' 2013-06-28 12:59:02 +02:00
acpi_memhotplug.c ACPI / memhotplug: Fix a stale pointer in error path 2013-07-15 01:26:18 +02:00
acpi_pad.c ACPI / acpi_pad: Used PTR_RET 2013-03-25 00:13:15 +01:00
acpi_platform.c ACPI / scan: Add special handler for Intel Lynxpoint LPSS devices 2013-03-21 22:44:38 +01:00
acpi_processor.c acpi: delete __cpuinit usage from all acpi files 2013-07-14 19:36:58 -04:00
battery.c ACPI / battery: Fix parsing _BIX return value 2013-07-30 14:00:42 +02:00
bgrt.c efi: Fix the ACPI BGRT driver for images located in EFI boot services memory 2012-09-29 12:21:03 -07:00
blacklist.c acpi: delete module.h include from files explicitly not needing it 2011-10-31 19:30:33 -04:00
bus.c ACPI: Remove useless initializers 2013-06-19 23:34:58 +02:00
button.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
cm_sbs.c
…
container.c Merge branch 'acpi-assorted' 2013-04-28 01:54:08 +02:00
custom_method.c The sweeping change is to make add_taint() explicitly indicate whether to disable 2013-02-25 15:41:43 -08:00
debugfs.c acpi: add export.h to files using THIS_MODULE/EXPORT_SYMBOL 2011-10-31 19:30:34 -04:00
device_pm.c ACPI / PM: Fix corner case in acpi_bus_update_power() 2013-07-04 13:22:11 +02:00
dock.c ACPI / dock: Actually define acpi_dock_init() as void 2013-07-04 13:25:04 +02:00
ec.c ACPI / EC: Add HP Folio 13 to ec_dmi_table in order to skip DSDT scan 2013-06-27 21:37:18 +02:00
ec_sys.c ACPI / EC: access user space with get_user()/put_user() 2013-06-19 23:29:20 +02:00
event.c acpi: add export.h to files using THIS_MODULE/EXPORT_SYMBOL 2011-10-31 19:30:34 -04:00
fan.c ACPI / fan: Initialize acpi_state variable 2013-07-04 13:33:25 +02:00
glue.c Merge branch 'acpi-assorted' 2013-06-28 13:00:38 +02:00
hed.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
internal.h Revert "ACPI / video / i915: No ACPI backlight if firmware expects Windows 8" 2013-07-26 14:59:20 +02:00
numa.c x86, ACPI, mm: Revert movablemem_map support 2013-03-02 09:34:39 -08:00
nvs.c ACPI / PM: print physical addresses consistently with other parts of kernel 2012-03-30 02:46:57 -04:00
osl.c Merge branch 'acpi-assorted' 2013-06-29 15:03:44 +02:00
pci_irq.c PCI/ACPI: Don't cache _PRT, and don't associate them with bus numbers 2013-02-16 11:58:34 -07:00
pci_link.c ACPI: Set length even for TYPE_END_TAG acpi resource 2013-03-24 01:00:38 +01:00
pci_root.c PCI changes for the v3.11 merge window: 2013-07-03 16:31:35 -07:00
pci_slot.c PCI/ACPI: Handle PCI slot devices when creating/destroying PCI buses 2013-04-12 15:38:25 -06:00
power.c ACPI / power: add missing newline to debug messages 2013-07-05 13:30:20 +02:00
proc.c ACPI / PM: Walk physical_node_list under physical_node_lock 2013-08-06 02:26:22 +02:00
processor_core.c acpi: delete __cpuinit usage from all acpi files 2013-07-14 19:36:58 -04:00
processor_driver.c acpi: delete __cpuinit usage from all acpi files 2013-07-14 19:36:58 -04:00
processor_idle.c acpi: delete __cpuinit usage from all acpi files 2013-07-14 19:36:58 -04:00
processor_perflib.c ACPI / processor: Drop unused variable from processor_perflib.c 2013-06-25 23:05:24 +02:00
processor_thermal.c ACPI / processor_thermal: avoid null pointer deference error 2013-03-25 23:01:01 +01:00
processor_throttling.c ACPI: suppress compiler warnings in processor_throttling.c 2013-03-25 00:05:48 +01:00
reboot.c Revert "ACPI: ignore FADT reset-reg-sup flag" 2012-04-20 11:19:35 -07:00
resource.c ACPI / resources: call acpi_get_override_irq() only for legacy IRQ resources 2013-06-19 23:55:59 +02:00
sbs.c proc: Supply a function to remove a proc entry by PDE 2013-05-01 17:29:46 -04:00
sbshc.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
sbshc.h
…
scan.c ACPI / scan: Always call acpi_bus_scan() for bus check notifications 2013-07-15 01:26:18 +02:00
sleep.c x86 / ACPI / sleep: Provide registration for acpi_suspend_lowlevel. 2013-06-19 23:36:30 +02:00
sleep.h ACPI: Drop power resources driver 2013-01-17 14:11:06 +01:00
sysfs.c Merge branch 'akpm' (updates from Andrew Morton) 2013-07-03 17:12:13 -07:00
tables.c ACPICA: Cleanup table handler naming conflicts. 2013-01-11 13:10:16 +01:00
thermal.c ACPI / thermal: do not always return THERMAL_TREND_RAISING for active trip points 2013-04-26 13:34:40 +02:00
utils.c ACPI: Add acpi_handle_<level>() interfaces 2012-11-21 23:20:22 +01:00
video.c ACPI / video: improve quirk check in acpi_video_bqc_quirk() 2013-08-04 23:45:39 +02:00
video_detect.c Revert "ACPI / video / i915: No ACPI backlight if firmware expects Windows 8" 2013-07-26 14:59:20 +02:00
wakeup.c ACPI / Wakeup: Enable button GPEs unconditionally during initialization 2011-02-12 01:39:53 +01:00