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9f1048d47e
linux/drivers/acpi
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Dan Williams 9f1048d47e ACPI: NFIT: Fix ARS zero-sized allocation 
Pending commit in -next "devres: handle zero size in devm_kmalloc()"
triggers a boot regression due to the ARS implementation expecting NULL
from a zero-sized allocation. Avoid the zero-sized allocation by
skipping ARS, otherwise crashes with the following signature when
de-referencing ZERO_SIZE_PTR.

     BUG: kernel NULL pointer dereference, address: 0000000000000018
     #PF: supervisor read access in kernel mode
     #PF: error_code(0x0000) - not-present page
     RIP: 0010:__acpi_nfit_scrub+0x28a/0x350 [nfit]
     [..]
     Call Trace:
       ? acpi_nfit_query_poison+0x6a/0x180 [nfit]
       acpi_nfit_scrub+0x36/0xb0 [nfit]
       process_one_work+0x23c/0x580
       worker_thread+0x50/0x3b0

Otherwise the implementation correctly aborts when NULL is returned from
devm_kzalloc() in ars_status_alloc().

Link: https://lore.kernel.org/r/159624590643.3037264.14157533719042907758.stgit@dwillia2-desk3.amr.corp.intel.com
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
2020-08-03 12:36:34 -06:00
..
acpica ACPICA: iASL: add new OperationRegion subtype keyword PlatformRtMechanism 2020-06-05 13:34:23 +02:00
apei ACPI updates for 5.8-rc1 2020-06-02 13:25:52 -07:00
arm64 ACPI/IORT: Remove the unused __get_pci_rid() 2020-05-26 20:43:33 +01:00
dptf ACPI: DPTF: Add battery participant driver 2020-05-25 12:05:26 +02:00
nfit ACPI: NFIT: Fix ARS zero-sized allocation 2020-08-03 12:36:34 -06:00
numa virtio-mem: Allow to specify an ACPI PXM as nid 2020-06-04 15:36:52 -04:00
pmic ACPI / PMIC: Add i2c address for thermal control 2020-05-18 12:57:24 +02:00
x86 ACPI: Convert to new X86 CPU match macros 2020-03-24 21:30:50 +01:00
ac.c ACPI / AC: Cleanup DMI quirk table 2020-03-04 10:32:50 +01:00
acpi_adxl.c ACPI/ADXL: Add address translation interface using an ACPI DSM 2018-10-16 10:03:00 +02:00
acpi_amba.c Merge 5.2-rc6 into char-misc-next 2019-06-23 09:23:33 +02:00
acpi_apd.c ACPI / APD: Add clock frequency for Hisilicon Hip08-Lite I2C controller 2020-02-03 12:03:18 +01:00
acpi_cmos_rtc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
acpi_configfs.c ACPICA: make acpi_load_table() return table index 2019-10-28 22:12:46 +01:00
acpi_dbg.c ACPI: debug: Make two functions static 2020-05-09 11:33:07 +02:00
acpi_extlog.c EDAC: Drop the EDAC report status checks 2020-04-14 16:01:01 +02:00
acpi_ipmi.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
acpi_lpat.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
acpi_lpit.c ACPI: LPIT: Put the low power idle table after using it 2020-05-09 11:29:16 +02:00
acpi_lpss.c PM: sleep: core: Rename dev_pm_smart_suspend_and_suspended() 2020-04-24 21:32:41 +02:00
acpi_memhotplug.c mm/memory_hotplug: rename walk_memory_range() and pass start+size instead of pfns 2019-07-18 17:08:06 -07:00
acpi_pad.c ACPI, x86: Add Zhaoxin processors support for NONSTOP TSC 2019-06-22 11:45:57 +02:00
acpi_platform.c ACPI: platform: Unregister stale platform devices 2019-10-17 23:48:39 +02:00
acpi_pnp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
acpi_processor.c ACPI: processor: Export acpi_processor_evaluate_cst() 2019-12-27 11:02:07 +01:00
acpi_tad.c PM: sleep: core: Rename DPM_FLAG_LEAVE_SUSPENDED 2020-04-24 21:34:22 +02:00
acpi_video.c ACPI: video: remove redundant assignments to variable result 2020-03-04 10:43:04 +01:00
acpi_watchdog.c ACPI: watchdog: Put the watchdog action table after parsing 2020-05-09 11:29:17 +02:00
battery.c ACPI / battery: Cleanup Lenovo Ideapad Miix 320 DMI table entry 2020-03-04 10:32:50 +01:00
bgrt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
blacklist.c ACPI: blacklist: fix clang warning for unused DMI table 2019-07-11 22:45:00 +02:00
bus.c ACPI: bus: Fix NULL pointer check in acpi_bus_get_private_data() 2019-11-29 11:42:10 +01:00
button.c ACPI: Delete unused proc filename macros 2020-05-14 13:49:33 +02:00
cm_sbs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
container.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
cppc_acpi.c ACPI: CPPC: Fix reference count leak in acpi_cppc_processor_probe() 2020-05-28 13:47:53 +02:00
custom_method.c Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2019-09-28 08:14:15 -07:00
debugfs.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
device_pm.c Merge branches 'pm-cpufreq' and 'pm-acpi' 2020-06-10 17:10:40 +02:00
device_sysfs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
dock.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
ec_sys.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 482 2019-06-19 17:09:52 +02:00
ec.c ACPI updates for 5.8-rc1 2020-06-02 13:25:52 -07:00
event.c ACPI: event: replace strcpy() by strscpy() 2019-04-23 10:54:26 +02:00
evged.c ACPI: GED: use correct trigger type field in _Exx / _Lxx handling 2020-05-27 17:51:49 +02:00
fan.c ACPI: fan: Use scnprintf() for avoiding potential buffer overflow 2020-03-14 11:11:58 +01:00
glue.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428 2019-06-05 17:37:16 +02:00
hed.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
internal.h ACPI: EC: PM: Avoid premature returns from acpi_s2idle_wake() 2020-05-11 10:11:38 +02:00
ioapic.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
irq.c Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-07-08 11:01:13 -07:00
Kconfig ACPI: Add new tiny-power-button driver to directly signal init 2020-02-13 23:36:23 +01:00
Makefile ACPI: Add new tiny-power-button driver to directly signal init 2020-02-13 23:36:23 +01:00
nvs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428 2019-06-05 17:37:16 +02:00
osi.c ACPI: OSI: Shoot duplicate word 2019-11-13 11:12:08 +01:00
osl.c ACPI: OSL: Add missing __acquires/__releases annotations 2020-03-04 10:40:48 +01:00
pci_irq.c ACPI / PCI: fix acpi_pci_irq_enable() memory leak 2019-09-03 09:41:25 +02:00
pci_link.c ACPI: Delete unused proc filename macros 2020-05-14 13:49:33 +02:00
pci_mcfg.c PCI: Constify struct pci_ecam_ops 2020-05-01 16:28:59 +01:00
pci_root.c Merge branch 'pci/misc' 2020-06-04 12:59:11 -05:00
pci_slot.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 491 2019-06-19 17:09:52 +02:00
power.c ACPI: Delete unused proc filename macros 2020-05-14 13:49:33 +02:00
pptt.c ACPI: PPTT: Consistently use unsigned int as parameter type 2020-01-07 11:46:36 +01:00
proc.c ACPI: list_for_each_safe() -> list_for_each_entry_safe() 2020-03-04 10:48:00 +01:00
processor_core.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
processor_driver.c cpufreq: Use per-policy frequency QoS 2019-10-21 02:05:21 +02:00
processor_idle.c ACPI: processor: idle: Allow probing on platforms with one ACPI C-state 2020-04-27 10:32:44 +02:00
processor_pdc.c
processor_perflib.c ACPI: processor: Add QoS requests for all CPUs 2019-10-25 11:33:48 +02:00
processor_thermal.c ACPI: processor: Add QoS requests for all CPUs 2019-10-25 11:33:48 +02:00
processor_throttling.c x86: ACPI: fix CPU hotplug deadlock 2020-04-04 16:28:24 +02:00
property.c device property: Add a function to obtain a node's prefix 2019-10-11 11:26:55 +02:00
reboot.c ACPI: Allow CONFIG_PCI to be unset for reboot 2018-12-20 10:19:49 +01:00
resource.c acpi: Use pr_warn instead of pr_warning 2019-10-18 15:00:19 +02:00
sbs.c ACPI: Delete unused proc filename macros 2020-05-14 13:49:33 +02:00
sbshc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372 2019-06-05 17:37:10 +02:00
sbshc.h ACPI: SBS: remove unused const variable 'SMBUS_PEC' 2019-08-23 12:55:09 +02:00
scan.c More power management updates for 5.8-rc1 2020-06-10 14:04:39 -07:00
sleep.c ACPI updates for 5.8-rc1 2020-06-02 13:25:52 -07:00
sleep.h ACPI: PM: Add acpi_[un]register_wakeup_handler() 2020-04-04 19:45:18 +02:00
spcr.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
sysfs.c ACPI: sysfs: Fix reference count leak in acpi_sysfs_add_hotplug_profile() 2020-05-28 13:45:34 +02:00
tables.c ACPICA: Add NHLT table signature 2020-03-30 14:52:33 +02:00
thermal.c ACPI: thermal: switch to use <linux/units.h> helpers 2020-01-31 10:30:39 -08:00
tiny-power-button.c ACPI: Add new tiny-power-button driver to directly signal init 2020-02-13 23:36:23 +01:00
utils.c ACPI: utils: Add acpi_evaluate_reg() helper 2020-05-09 11:40:25 +02:00
video_detect.c ACPI: video: Use native backlight on Acer TravelMate 5735Z 2020-05-25 11:58:51 +02:00
wakeup.c ACPI: PM: Add acpi_[un]register_wakeup_handler() 2020-04-04 19:45:18 +02:00