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a83e1385b7
linux/drivers/acpi
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Raju Rangoju a83e1385b7 ACPICA: Revert "ACPICA: avoid Info: mapping multiple BARs. Your kernel is fine." 
Undo the modifications made in commit d410ee5109 ("ACPICA: avoid
"Info: mapping multiple BARs. Your kernel is fine.""). The initial
purpose of this commit was to stop memory mappings for operation
regions from overlapping page boundaries, as it can trigger warnings
if different page attributes are present.

However, it was found that when this situation arises, mapping
continues until the boundary's end, but there is still an attempt to
read/write the entire length of the map, leading to a NULL pointer
deference. For example, if a four-byte mapping request is made but
only one byte is mapped because it hits the current page boundary's
end, a four-byte read/write attempt is still made, resulting in a NULL
pointer deference.

Instead, map the entire length, as the ACPI specification does not
mandate that it must be within the same page boundary. It is
permissible for it to be mapped across different regions.

Link: https://github.com/acpica/acpica/pull/954
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218849
Fixes: d410ee5109 ("ACPICA: avoid "Info: mapping multiple BARs. Your kernel is fine."")
Co-developed-by: Sanath S <Sanath.S@amd.com>
Signed-off-by: Sanath S <Sanath.S@amd.com>
Signed-off-by: Raju Rangoju <Raju.Rangoju@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2024-06-17 21:13:25 +02:00
..
acpica ACPICA: Revert "ACPICA: avoid Info: mapping multiple BARs. Your kernel is fine." 2024-06-17 21:13:25 +02:00
apei Merge branches 'acpi-ec', 'acpi-apei' and 'pnp' 2024-06-05 16:58:09 +02:00
arm64 Char/Misc and other driver subsystem changes for 6.10-rc1 2024-05-22 12:26:46 -07:00
dptf ACPI: DPTF: Add Lunar Lake support 2024-04-08 16:10:27 +02:00
nfit ACPI: NFIT: Switch to use acpi_evaluate_dsm_typed() 2024-02-02 17:31:50 +01:00
numa ACPI/NUMA: Squash acpi_numa_memory_affinity_init() into acpi_parse_memory_affinity() 2024-05-07 13:47:15 +02:00
pmic ACPI: PMIC: Add comments with DSDT power opregion field names 2023-01-30 16:47:13 +01:00
riscv ACPI: RISC-V: Add CPPC driver 2024-03-19 18:30:54 -07:00
x86 ACPI: x86: Force StorageD3Enable on more products 2024-06-07 20:24:07 +02:00
ac.c ACPI: AC: Properly notify powermanagement core about changes 2024-05-28 21:56:40 +02:00
acpi_adxl.c
acpi_apd.c ACPI: processor: Check for null return of devm_kzalloc() in fch_misc_setup() 2023-03-20 18:04:58 +01:00
acpi_configfs.c
acpi_dbg.c
acpi_extlog.c ACPI: extlog: Clear Extended Error Log status when RAS_CEC handled the error 2023-12-13 13:50:00 +01:00
acpi_ffh.c ACPI: FFH: Drop the inclusion of linux/arm-smccc.h 2023-06-12 19:28:20 +02:00
acpi_fpdt.c ACPI: FPDT: properly handle invalid FPDT subtables 2023-10-03 21:12:22 +02:00
acpi_ipmi.c ACPI: IPMI: Add helper to wait for when SMI is selected 2024-04-28 10:07:34 -07:00
acpi_lpat.c
acpi_lpit.c ACPI: LPIT: Avoid u32 multiplication overflow 2023-11-22 20:55:20 +01:00
acpi_memhotplug.c mm/memory_hotplug: allow memmap on memory hotplug request to fallback 2023-08-21 13:37:48 -07:00
acpi_pad.c Many singleton patches against the MM code. The patch series which are 2023-11-02 19:38:47 -10:00
acpi_pcc.c
acpi_platform.c ACPI: platform: Move SMB0001 HID to the header and reuse 2023-07-04 19:28:20 +02:00
acpi_pnp.c ACPI: PNP: Introduce list of known non-PNP devices 2023-01-17 12:52:11 +01:00
acpi_processor.c Merge branches 'acpi-x86', 'acpi-video', 'acpi-apei' and 'acpi-misc' 2024-03-11 14:42:30 +01:00
acpi_tad.c ACPI: TAD: Convert to platform remove callback returning void 2024-02-27 15:57:33 +01:00
acpi_video.c ACPI: video: Handle fetching EDID that is longer than 256 bytes 2024-02-08 14:03:47 +01:00
acpi_watchdog.c ACPI: use %pe for better readability of errors while printing 2024-02-16 19:31:12 +01:00
battery.c ACPI: bus: Add context argument to acpi_dev_install_notify_handler() 2023-10-06 17:32:51 +02:00
bgrt.c treewide: Use sysfs_bin_attr_simple_read() helper 2024-04-11 16:02:25 +02:00
bus.c Merge branches 'acpi-scan' and 'acpi-tables' 2024-05-13 19:31:06 +02:00
button.c ACPI: button: trigger wakeup key events 2023-12-29 18:47:49 +01:00
container.c
cppc_acpi.c Merge branch 'pm-cpufreq' 2024-05-13 20:13:48 +02:00
debugfs.c
device_pm.c ACPI: PM: Add acpi_device_fix_up_power_children() function 2023-11-20 17:31:49 +01:00
device_sysfs.c Merge branches 'acpi-ec', 'acpi-sysfs', 'acpi-misc' and 'acpi-uid' 2023-10-26 14:59:52 +02:00
dock.c ACPI: scan: Introduce typedef:s for struct acpi_hotplug_context members 2024-04-04 21:19:02 +02:00
ec_sys.c
ec.c ACPI: EC: Evaluate orphan _REG under EC device 2024-06-13 11:28:54 +02:00
event.c
evged.c ACPI: GED: Convert to platform remove callback returning void 2024-02-27 15:57:33 +01:00
fan_attr.c ACPI: fan: Convert to use sysfs_emit_at() API 2022-12-06 12:44:14 +01:00
fan_core.c ACPI: fan: Convert to platform remove callback returning void 2024-02-27 15:57:34 +01:00
fan.h ACPI: DPTF: Add Lunar Lake support 2024-04-08 16:10:27 +02:00
glue.c ACPI: Fix selecting wrong ACPI fwnode for the iGPU on some Dell laptops 2023-01-10 20:23:48 +01:00
hed.c ACPI: bus: Add context argument to acpi_dev_install_notify_handler() 2023-10-06 17:32:51 +02:00
internal.h ACPI: EC: Install address space handler at the namespace root 2024-05-16 18:31:05 +02:00
ioapic.c ACPI: Silence missing prototype warnings 2022-12-30 19:12:30 +01:00
irq.c ACPI: irq: Fix incorrect return value in acpi_register_gsi() 2023-10-18 13:11:04 +02:00
Kconfig ACPI: NHLT: Introduce API for the table 2024-03-27 16:36:45 +01:00
Makefile Merge branches 'acpi-x86', 'acpi-dptf' and 'acpi-apei' 2024-05-13 20:58:14 +02:00
mipi-disco-img.c ACPI: property: Polish ignoring bad data nodes 2024-02-26 17:56:11 +01:00
nhlt.c ACPI: NHLT: Streamline struct naming 2024-03-27 16:36:45 +01:00
nvs.c
osi.c ACPI: OSI: refactor deprecated strncpy() 2023-09-21 20:55:43 +02:00
osl.c ACPI: OSL: Use spin locks without disabling interrupts 2023-12-28 14:13:52 +01:00
pci_irq.c ACPI / PCI: fix LPIC IRQ model default PCI IRQ polarity 2022-11-26 12:57:18 +00:00
pci_link.c
pci_mcfg.c
pci_root.c ACPI: PCI: Switch to use acpi_evaluate_dsm_typed() 2023-10-03 15:46:14 +02:00
pci_slot.c ACPI: use %pe for better readability of errors while printing 2024-02-16 19:31:12 +01:00
pfr_telemetry.c ACPI: pfr_telemetry: Convert to platform remove callback returning void 2024-02-27 15:57:34 +01:00
pfr_update.c ACPI: pfr_update: Convert to platform remove callback returning void 2024-02-27 15:57:34 +01:00
platform_profile.c ACPI: platform-profile: add platform_profile_cycle() 2024-04-15 15:46:56 +02:00
power.c ACPI: PM: Do not turn of unused power resources on the Toshiba Click Mini 2023-04-27 18:44:43 +02:00
pptt.c ACPI: PPTT: Fix to avoid sleep in the atomic context when PPTT is absent 2023-03-14 20:34:38 +01:00
prmt.c ACPI: PRM: Annotate struct prm_module_info with __counted_by 2023-10-03 21:24:10 +02:00
proc.c
processor_core.c arm64, irqchip/gic-v3, ACPI: Move MADT GICC enabled check into a helper 2023-10-24 15:12:09 +01:00
processor_driver.c ACPI: cpufreq: Add highest perf change notification 2024-01-31 14:54:50 +01:00
processor_idle.c ACPI: processor_idle: Fix memory leak in acpi_processor_power_exit() 2024-02-15 20:26:40 +01:00
processor_pdc.c ACPI: processor: Fix uninitialized access of buf in acpi_set_pdc_bits() 2023-09-18 12:16:16 +02:00
processor_perflib.c ACPI: processor: perflib: Avoid updating frequency QoS unnecessarily 2022-12-30 19:10:02 +01:00
processor_thermal.c ACPI: processor: reduce CPUFREQ thermal reduction pctg for Tegra241 2023-12-06 20:52:47 +01:00
processor_throttling.c
property.c ACPI: property: Add reference to UEFI DSD Guide 2024-04-26 19:00:47 +02:00
reboot.c
resource.c ACPI: resource: Skip IRQ override on Asus Vivobook Pro N6506MV 2024-04-30 21:22:42 +02:00
sbs.c ACPI: AC: Properly notify powermanagement core about changes 2024-05-28 21:56:40 +02:00
sbshc.c
sbshc.h
scan.c IOMMU Updates for Linux v6.10 2024-05-18 10:55:13 -07:00
sleep.c More ACPI updates for 6.9-rc1 2024-03-19 11:15:14 -07:00
sleep.h
spcr.c ACPI: SPCR: Amend indentation 2023-03-27 20:50:28 +02:00
sysfs.c ACPI: sysfs: Enable ACPI sysfs support for CCEL records 2023-03-27 20:43:58 +02:00
tables.c lib/firmware_table: Provide buffer length argument to cdat_table_parse() 2024-03-13 00:03:21 -07:00
thermal_lib.c ACPI: thermal_lib: Initialize temp_decik to zero 2024-02-22 20:36:17 +01:00
thermal.c thermal: ACPI: Invalidate trip points with temperature of 0 or below 2024-06-07 13:52:17 +02:00
tiny-power-button.c ACPI: tiny-power-button: Eliminate the driver notify callback 2023-06-16 19:48:09 +02:00
utils.c ACPI: utils: Make acpi_handle_path() not static 2024-02-15 21:06:06 +01:00
video_detect.c ACPI: video: Add backlight=native quirk for Lenovo Slim 7 16ARH7 2024-05-07 13:43:19 +02:00
viot.c ACPI: VIOT: Initialize the correct IOMMU fwspec 2023-03-30 19:20:42 +02:00
wakeup.c