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c754a6f5c3
android_kernel_samsung_sm8650/drivers/acpi
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Vasily Khoruzhick c754a6f5c3 ACPI: FPDT: properly handle invalid FPDT subtables 
commit a83c68a3bf7c418c9a46693c63c638852b0c1f4e upstream.

Buggy BIOSes may have invalid FPDT subtables, e.g. on my hardware:

S3PT subtable:

7F20FE30: 53 33 50 54 24 00 00 00-00 00 00 00 00 00 18 01  *S3PT$...........*
7F20FE40: 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  *................*
7F20FE50: 00 00 00 00

Here the first record has zero length.

FBPT subtable:

7F20FE50:             46 42 50 54-3C 00 00 00 46 42 50 54  *....FBPT<...FBPT*
7F20FE60: 02 00 30 02 00 00 00 00-00 00 00 00 00 00 00 00  *..0.............*
7F20FE70: 2A A6 BC 6E 0B 00 00 00-1A 44 41 70 0B 00 00 00  **..n.....DAp....*
7F20FE80: 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  *................*

And here FBPT table has FBPT signature repeated instead of the first
record.

Current code will be looping indefinitely due to zero length records, so
break out of the loop if record length is zero.

While we are here, add proper handling for fpdt_process_subtable()
failures.

Fixes: d1eb86e59b ("ACPI: tables: introduce support for FPDT table")
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
[ rjw: Comment edit, added empty code lines ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-11-28 17:07:12 +00:00
..
acpica ACPICA: Add AML_NO_OPERAND_RESOLVE flag to Timer 2023-09-23 11:11:00 +02:00
apei ACPI: APEI: Fix integer overflow in ghes_estatus_pool_init() 2022-10-13 20:40:09 +02:00
arm64 perf/smmuv3: Enable HiSilicon Erratum 162001900 quirk for HIP08/09 2023-09-23 11:11:00 +02:00
dptf ACPI: DPTF: Drop stale link from Kconfig help 2022-09-28 17:26:25 +02:00
nfit ACPI: NFIT: fix a potential deadlock during NFIT teardown 2023-03-03 11:52:21 +01:00
numa ACPI/NUMA: Apply SRAT proximity domain to entire CFMWS window 2023-11-20 11:51:50 +01:00
pmic ACPI: PMIC: xpower: Fix _TMP ACPI errors 2021-12-08 15:34:57 +01:00
x86 ACPI: x86: s2idle: Catch multiple ACPI_TYPE_PACKAGE objects 2023-09-23 11:11:00 +02:00
ac.c ACPI: AC: Remove the leftover struct acpi_ac_bl 2022-09-24 18:22:59 +02:00
acpi_adxl.c
acpi_amba.c Merge branches 'acpi-ec', 'acpi-ac', 'acpi-fan', 'acpi-video' and 'acpi-amba' 2022-10-03 19:59:47 +02:00
acpi_apd.c ACPI: processor: Check for null return of devm_kzalloc() in fch_misc_setup() 2023-05-24 17:32:35 +01:00
acpi_cmos_rtc.c ACPI: cmos_rtc: Using pr_fmt() and remove PREFIX 2021-06-07 15:36:45 +02:00
acpi_configfs.c ACPI: configfs: Make get_header() to return error pointer 2021-07-16 19:20:28 +02:00
acpi_dbg.c ACPI: debug: Remove the not used function 2020-11-17 18:12:34 +01:00
acpi_extlog.c ACPI: extlog: Handle multiple records 2022-10-13 20:43:10 +02:00
acpi_fpdt.c ACPI: FPDT: properly handle invalid FPDT subtables 2023-11-28 17:07:12 +00:00
acpi_ipmi.c ACPI: IPMI: replace usage of found with dedicated list iterator variable 2022-03-25 18:01:40 +01:00
acpi_lpat.c
acpi_lpit.c Revert "ACPI / PM: LPIT: Register sysfs attributes based on FADT" 2022-07-15 20:04:07 +02:00
acpi_lpss.c Merge branch 'acpi-uid' 2022-10-03 20:09:22 +02:00
acpi_memhotplug.c ACPI: memhotplug: use a single static memory group for a single memory device 2021-09-08 11:50:23 -07:00
acpi_pad.c ACPI: Add perf low power callback 2022-04-05 10:24:38 +02:00
acpi_pcc.c ACPI: PCC: Fix unintentional integer overflow 2022-10-26 13:33:31 +02:00
acpi_platform.c Merge branches 'acpi-scan', 'acpi-bus' and 'acpi-platform' 2022-09-30 20:28:22 +02:00
acpi_pnp.c ACPI: PNP: remove duplicated BRI0A49 and BDP3336 entries 2021-09-24 18:12:15 +02:00
acpi_processor.c ACPI: processor: Replace deprecated CPU-hotplug functions 2021-08-04 20:25:54 +02:00
acpi_tad.c ACPI: Use DEVICE_ATTR_<RW|RO|WO> macros 2021-01-22 16:17:19 +01:00
acpi_video.c ACPI: video: Make acpi_backlight=video work independent from GPU driver 2023-04-13 16:55:33 +02:00
acpi_watchdog.c ACPI: watchdog: Replace open coded variant of resource_union() 2020-11-17 18:06:29 +01:00
battery.c ACPI: battery: Fix missing NUL-termination with large strings 2023-03-10 09:32:56 +01:00
bgrt.c ACPI: BGRT: use static for BGRT_SHOW kobj_attribute defines 2022-04-22 16:55:33 +02:00
blacklist.c ACPI: blacklist: Unify the message printing 2021-06-07 15:36:45 +02:00
bus.c ACPI: bus: Ensure that notify handlers are not running after removal 2023-05-11 23:03:16 +09:00
button.c ACPI: button: Add DMI quirk for Lenovo Yoga 9 (14INTL5) 2021-08-25 19:57:01 +02:00
container.c ACPI: container: Use acpi_dev_for_each_child() 2022-06-20 20:33:05 +02:00
cppc_acpi.c ACPI: CPPC: Disable FIE if registers in PCC regions 2022-09-24 18:43:46 +02:00
custom_method.c ACPI: custom_method: fix a possible memory leak 2021-04-28 19:17:54 +02:00
debugfs.c
device_pm.c PCI/ACPI: Account for _S0W of the target bridge in acpi_pci_bridge_d3() 2023-03-11 13:55:33 +01:00
device_sysfs.c ACPI: sysfs: Fix create_pnp_modalias() and create_of_modalias() 2023-11-20 11:51:55 +01:00
dock.c ACPI: Use acpi_fetch_acpi_dev() instead of acpi_bus_get_device() 2021-12-17 18:45:51 +01:00
ec_sys.c ACPI: EC: Mark the ec_sys write_support param as module_param_hw() 2021-12-01 20:19:30 +01:00
ec.c ACPI: EC: Add quirk for HP 250 G7 Notebook PC 2023-11-28 17:06:56 +00:00
event.c Merge branches 'acpi-ec', 'acpi-apei', 'acpi-soc' and 'acpi-misc' 2021-06-29 15:51:25 +02:00
evged.c ACPI: GED: fix -Wformat 2020-11-09 19:25:20 +01:00
fan_attr.c ACPI: fan: Add additional attributes for fine grain control 2022-02-25 20:49:30 +01:00
fan_core.c ACPI: fan: Reorder symbols to get rid of a few forward declarations 2022-09-24 18:46:52 +02:00
fan.h ACPI: DPTF: Support Meteor Lake 2022-05-25 15:37:07 +02:00
glue.c ACPI: Fix selecting wrong ACPI fwnode for the iGPU on some Dell laptops 2023-01-18 11:58:11 +01:00
hed.c ACPI: HED: Drop unused ACPI_MODULE_NAME() definition 2021-03-08 16:51:48 +01:00
internal.h ACPI: scan: Eliminate __acpi_device_add() 2022-08-23 18:19:27 +02:00
ioapic.c
irq.c ACPI: irq: Fix incorrect return value in acpi_register_gsi() 2023-10-25 12:03:14 +02:00
Kconfig platform-drivers-x86 for v6.1-1 2022-10-05 10:38:24 -07:00
Makefile ACPI: processor: Split out thermal initialization from ACPI PSS 2022-06-29 18:51:22 +02:00
nvs.c Merge branches 'acpi-ec', 'acpi-apei', 'acpi-soc' and 'acpi-misc' 2021-06-29 15:51:25 +02:00
osi.c ACPI: OSI: Remove Linux-HPI-Hybrid-Graphics _OSI string 2022-08-25 20:18:17 +02:00
osl.c ACPI: OSL: Remove the helper for deactivating memory region 2022-04-27 20:44:55 +02:00
pci_irq.c ACPI: PCI: IRQ: Consolidate printing diagnostic messages 2021-03-08 16:51:08 +01:00
pci_link.c ACPI/PCI: Remove useless NULL pointer checks 2022-07-27 21:21:27 +02:00
pci_mcfg.c PCI: loongson: Add ACPI init support 2022-07-14 15:25:36 -05:00
pci_root.c ACPI: PCI: Fix device reference counting in acpi_get_pci_dev() 2022-10-19 13:28:30 +02:00
pci_slot.c
pfr_telemetry.c ACPI: pfr_telemetry: use ACPI_FREE() to free acpi_object 2022-12-31 13:31:57 +01:00
pfr_update.c use less confusing names for iov_iter direction initializers 2023-02-09 11:28:04 +01:00
platform_profile.c ACPI: platform-profile: call sysfs_notify() from platform_profile_store() 2021-08-16 18:32:02 +02:00
power.c ACPI: PM: Do not turn of unused power resources on the Toshiba Click Mini 2023-05-11 23:03:38 +09:00
pptt.c ACPI: PPTT: Fix to avoid sleep in the atomic context when PPTT is absent 2023-03-22 13:34:04 +01:00
prmt.c ACPI: PRM: Check whether EFI runtime is available 2023-01-24 07:24:35 +01:00
proc.c proc: remove PDE_DATA() completely 2022-01-22 08:33:37 +02:00
processor_core.c
processor_driver.c ACPI: processor: Split out thermal initialization from ACPI PSS 2022-06-29 18:51:22 +02:00
processor_idle.c ACPI: processor: idle: Check acpi_fetch_acpi_dev() return value 2022-12-31 13:32:57 +01:00
processor_pdc.c ACPI: processor: Fix evaluating _PDC method when running as Xen dom0 2023-05-11 23:03:11 +09:00
processor_perflib.c ACPI: processor: perflib: Avoid updating frequency QoS unnecessarily 2023-08-03 10:24:18 +02:00
processor_thermal.c ACPI: processor: Remove freq Qos request for all CPUs 2022-08-23 18:09:06 +02:00
processor_throttling.c Merge branches 'acpi-dptf' and 'acpi-messages' 2021-06-29 15:50:37 +02:00
property.c ACPI: property: Allow _DSD buffer data only for byte accessors 2023-11-20 11:51:53 +01:00
reboot.c ACPI: reboot: Unify the message printing 2021-06-07 15:36:46 +02:00
resource.c ACPI: resource: Do IRQ override on TongFang GMxXGxx 2023-11-28 17:07:09 +00:00
sbs.c ACPI: Drop parent field from struct acpi_device 2022-08-24 20:55:24 +02:00
sbshc.c ACPI: Drop parent field from struct acpi_device 2022-08-24 20:55:24 +02:00
sbshc.h ACPI: Fix whitespace inconsistencies 2020-11-09 19:08:06 +01:00
scan.c ACPI: scan: Create platform device for CS35L56 2023-08-16 18:27:31 +02:00
sleep.c ACPI: sleep: Avoid breaking S3 wakeup due to might_sleep() 2023-06-28 11:12:22 +02:00
sleep.h ACPI: s2idle: Add a new ->check() callback for platform_s2idle_ops 2022-09-09 17:37:40 +02:00
spcr.c ACPI: SPCR: Add support for NVIDIA 16550-compatible port subtype 2022-04-13 20:37:29 +02:00
sysfs.c ACPI: sysfs: Fix BERT error region memory mapping 2022-04-13 19:58:14 +02:00
tables.c ACPI: tables: Make LAPIC_ADDR_OVR address readable in message 2022-03-25 18:11:42 +01:00
thermal.c ACPI: thermal: Drop nocrt parameter 2023-09-02 09:16:18 +02:00
tiny-power-button.c ACPI: tiny-power-button: Simplify the code using module_acpi_driver() 2020-11-17 18:12:34 +01:00
utils.c Merge branch 'acpi-uid' 2022-10-03 20:09:22 +02:00
video_detect.c ACPI: video: Add acpi_backlight=vendor quirk for Toshiba Portégé R100 2023-11-20 11:51:53 +01:00
viot.c ACPI: VIOT: Initialize the correct IOMMU fwspec 2023-05-11 23:03:12 +09:00
wakeup.c ACPI: Fix whitespace inconsistencies 2020-11-09 19:08:06 +01:00