Ashish Kalra c50ec15725 ACPI: APEI: Fix integer overflow in ghes_estatus_pool_init() ... [ Upstream commit 43d2748394 ] Change num_ghes from int to unsigned int, preventing an overflow and causing subsequent vmalloc() to fail. The overflow happens in ghes_estatus_pool_init() when calculating len during execution of the statement below as both multiplication operands here are signed int: len += (num_ghes * GHES_ESOURCE_PREALLOC_MAX_SIZE); The following call trace is observed because of this bug: [ 9.317108] swapper/0: vmalloc error: size 18446744071562596352, exceeds total pages, mode:0xcc0(GFP_KERNEL), nodemask=(null),cpuset=/,mems_allowed=0-1 [ 9.317131] Call Trace: [ 9.317134] <TASK> [ 9.317137] dump_stack_lvl+0x49/0x5f [ 9.317145] dump_stack+0x10/0x12 [ 9.317146] warn_alloc.cold+0x7b/0xdf [ 9.317150] ? __device_attach+0x16a/0x1b0 [ 9.317155] __vmalloc_node_range+0x702/0x740 [ 9.317160] ? device_add+0x17f/0x920 [ 9.317164] ? dev_set_name+0x53/0x70 [ 9.317166] ? platform_device_add+0xf9/0x240 [ 9.317168] __vmalloc_node+0x49/0x50 [ 9.317170] ? ghes_estatus_pool_init+0x43/0xa0 [ 9.317176] vmalloc+0x21/0x30 [ 9.317177] ghes_estatus_pool_init+0x43/0xa0 [ 9.317179] acpi_hest_init+0x129/0x19c [ 9.317185] acpi_init+0x434/0x4a4 [ 9.317188] ? acpi_sleep_proc_init+0x2a/0x2a [ 9.317190] do_one_initcall+0x48/0x200 [ 9.317195] kernel_init_freeable+0x221/0x284 [ 9.317200] ? rest_init+0xe0/0xe0 [ 9.317204] kernel_init+0x1a/0x130 [ 9.317205] ret_from_fork+0x22/0x30 [ 9.317208] </TASK> Signed-off-by: Ashish Kalra <ashish.kalra@amd.com> [ rjw: Subject and changelog edits ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-11-10 18:15:34 +01:00
..
platform	ACPI: tools: fix compilation error	2021-10-07 19:18:19 +02:00
acbuffer.h	ACPICA: Add _PLD panel positions	2021-06-07 14:04:43 +02:00
acconfig.h	ACPICA: Add support for PlatformRtMechanism OperationRegion handler	2021-06-07 14:04:43 +02:00
acexcep.h	ACPICA: Updated all copyrights to 2021	2021-01-22 15:51:53 +01:00
acnames.h	ACPICA: Add method name "_DIS" For use with aslmethod.c	2021-08-16 16:47:02 +02:00
acoutput.h	ACPICA: Macros should not use a trailing semicolon	2021-08-16 16:47:02 +02:00
acpi.h	ACPICA: Updated all copyrights to 2021	2021-01-22 15:51:53 +01:00
acpi_bus.h	ACPI: Change acpi_device_always_present() into acpi_device_override_status()	2022-01-27 11:04:33 +01:00
acpi_drivers.h	Merge branches 'acpi-pci' and 'acpi-processor'	2021-04-26 17:03:05 +02:00
acpi_io.h	Revert "ACPI: Add memory semantics to acpi_os_map_memory()"	2021-09-23 20:39:36 +02:00
acpi_lpat.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174	2019-05-30 11:26:41 -07:00
acpi_numa.h	ACPI: NUMA: fix typo in a comment	2021-06-07 16:41:10 +02:00
acpiosxf.h	ACPICA: Updated all copyrights to 2021	2021-01-22 15:51:53 +01:00
acpixf.h	ACPICA: Update version to 20210730	2021-08-16 16:47:02 +02:00
acrestyp.h	ACPICA: ACPI 6.4: add CSI2Bus resource template	2021-04-07 19:09:01 +02:00
actbl.h	ACPICA: Updated all copyrights to 2021	2021-01-22 15:51:53 +01:00
actbl1.h	ACPICA: Headers: Add new DBG2 Serial Port Subtypes	2021-08-16 16:47:02 +02:00
actbl2.h	ACPICA: iASL: Add support for the AEST table (data compiler)	2021-08-16 16:47:01 +02:00
actbl3.h	ACPICA: iASL: Fix for WPBT table with no command-line arguments	2021-08-16 16:47:02 +02:00
actypes.h	ACPICA: actypes.h: Expand the ACPI_ACCESS_ definitions	2022-01-27 11:04:49 +01:00
acuuid.h	ACPICA: ACPI 6.4: add USB4 capabilities UUID	2021-04-07 19:09:00 +02:00
apei.h	ACPI: APEI: explicit init of HEST and GHES in apci_init()	2022-08-17 14:23:11 +02:00
battery.h	ACPI: battery: include linux/power_supply.h	2020-09-25 18:31:19 +02:00
button.h	ACPI: button: move HIDs to acpi/button.h	2020-02-13 23:36:23 +01:00
cppc_acpi.h	ACPI: CPPC: Do not prevent CPPC from working in the future	2022-08-17 14:24:25 +02:00
ghes.h	ACPI: APEI: Fix integer overflow in ghes_estatus_pool_init()	2022-11-10 18:15:34 +01:00
hed.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428	2019-06-05 17:37:16 +02:00
nfit.h	acpi, nfit: Add function to look up nvdimm device and provide SMBIOS handle	2018-03-14 12:43:50 +01:00
pcc.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441	2019-06-05 17:37:17 +02:00
pdc_intel.h
processor.h	x86: ACPI: fix CPU hotplug deadlock	2020-04-04 16:28:24 +02:00
reboot.h
video.h