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FreeRTOS-Kernel/portable/GCC
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Gaurav Aggarwal 79704b8213 Remove local stack variable form MPU wrappers 
It was possible for a third party that had already independently gained
the ability to execute injected code to achieve further privilege
escalation by branching directly inside a FreeRTOS MPU API wrapper
function with a manually crafted stack frame. This commit removes the
local stack variable `xRunningPrivileged` so that a manually crafted
stack frame cannot be used for privilege escalation by branching
directly inside a FreeRTOS MPU API wrapper.

We thank Certibit Consulting, LLC, Huazhong University of Science and
Technology and the SecLab team at Northeastern University for reporting
this issue.

Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>
2022-09-17 00:03:08 +05:30
..
ARM7_AT91FR40008 Normalize files with mixed line endings (introduced in commit 3a413d1) 2021-06-01 17:55:18 -07:00
ARM7_AT91SAM7S Normalize files with mixed line endings (introduced in commit 3a413d1) 2021-06-01 17:55:18 -07:00
ARM7_LPC23xx Normalize files with mixed line endings (introduced in commit 3a413d1) 2021-06-01 17:55:18 -07:00
ARM7_LPC2000 Normalize files with mixed line endings (introduced in commit 3a413d1) 2021-06-01 17:55:18 -07:00
ARM_CA9 Include string.h at the top of portable/GCC/ARM_CA9/port.c to prevent memset() generating a warning. (#430) 2022-08-09 10:37:24 -07:00
ARM_CA53_64_BIT fix alignment exception for ullPortInterruptNesting. (#317) 2021-12-29 13:53:10 -07:00
ARM_CA53_64_BIT_SRE Update comments for the ARM_CA53_64_BIT_SRE port (#403) 2021-10-16 13:45:03 -07:00
ARM_CM0 Add configSYSTICK_CLOCK_HZ to Cortex-M0 ports (#484) 2022-04-08 11:13:11 -07:00
ARM_CM3 fix typo (#399) 2021-10-06 15:32:07 -07:00
ARM_CM3_MPU Remove local stack variable form MPU wrappers 2022-09-17 00:03:08 +05:30
ARM_CM4_MPU Remove local stack variable form MPU wrappers 2022-09-17 00:03:08 +05:30
ARM_CM4F fix typo (#399) 2021-10-06 15:32:07 -07:00
ARM_CM7 Add Cortex M7 r0p1 Errata 837070 workaround to CM4_MPU ports (#513) 2022-06-30 10:35:26 +05:30
ARM_CM23 Add .syntax unified to GCC assembly functions (#538) 2022-08-07 22:46:11 +05:30
ARM_CM23_NTZ/non_secure Add .syntax unified to GCC assembly functions (#538) 2022-08-07 22:46:11 +05:30
ARM_CM33 Add .syntax unified to GCC assembly functions (#538) 2022-08-07 22:46:11 +05:30
ARM_CM33_NTZ/non_secure Add .syntax unified to GCC assembly functions (#538) 2022-08-07 22:46:11 +05:30
ARM_CM55 Add .syntax unified to GCC assembly functions (#538) 2022-08-07 22:46:11 +05:30
ARM_CM55_NTZ/non_secure Add .syntax unified to GCC assembly functions (#538) 2022-08-07 22:46:11 +05:30
ARM_CM85 M85 support (#556) 2022-09-13 22:08:25 +05:30
ARM_CM85_NTZ/non_secure M85 support (#556) 2022-09-13 22:08:25 +05:30
ARM_CR5 fix typo (#399) 2021-10-06 15:32:07 -07:00
ARM_CRx_No_GIC Normalize files with mixed line endings (introduced in commit 3a413d1) 2021-06-01 17:55:18 -07:00
ATMega323 Normalize files with mixed line endings (introduced in commit 3a413d1) 2021-06-01 17:55:18 -07:00
AVR32_UC3 Update license text for ports that were previously missed. 2021-05-27 19:57:55 -07:00
AVR_AVRDx Remove AVR ports from main repo (#394) 2021-09-14 19:25:46 -07:00
AVR_Mega0 Remove AVR ports from main repo (#394) 2021-09-14 19:25:46 -07:00
ColdFire_V2 Normalize files with mixed line endings (introduced in commit 3a413d1) 2021-06-01 17:55:18 -07:00
CORTUS_APS3 Normalize files with mixed line endings (introduced in commit 3a413d1) 2021-06-01 17:55:18 -07:00
H8S2329 Normalize files with mixed line endings (introduced in commit 3a413d1) 2021-06-01 17:55:18 -07:00
HCS12 Normalize files with mixed line endings (introduced in commit 3a413d1) 2021-06-01 17:55:18 -07:00
IA32_flat Normalize files with mixed line endings (introduced in commit 3a413d1) 2021-06-01 17:55:18 -07:00
MCF5235 Replace two dashes and one whitespace with their corresponding ASCII characters. (#362) 2021-06-30 15:07:55 -07:00
MicroBlaze Normalize files with mixed line endings (introduced in commit 3a413d1) 2021-06-01 17:55:18 -07:00
MicroBlazeV8 Normalize files with mixed line endings (introduced in commit 3a413d1) 2021-06-01 17:55:18 -07:00
MicroBlazeV9 Add vPortRemoveInterruptHandler API (#533) 2022-08-03 13:45:27 -07:00
MSP430F449 Normalize files with mixed line endings (introduced in commit 3a413d1) 2021-06-01 17:55:18 -07:00
NiosII Fix: Interrut Handler Register Function and Exception Process (#41) 2021-12-28 10:54:23 -07:00
PPC405_Xilinx Normalize files with mixed line endings (introduced in commit 3a413d1) 2021-06-01 17:55:18 -07:00
PPC440_Xilinx Normalize files with mixed line endings (introduced in commit 3a413d1) 2021-06-01 17:55:18 -07:00
RISC-V RISC-V: Add support for RV32E extension in GCC port (#543) 2022-08-30 16:49:37 -07:00
RL78 Normalize files with mixed line endings (introduced in commit 3a413d1) 2021-06-01 17:55:18 -07:00
RX100 Fix GCC/RX100 function naming error. (#440) 2022-01-13 10:30:26 -08:00
RX200 Normalize files with mixed line endings (introduced in commit 3a413d1) 2021-06-01 17:55:18 -07:00
RX600 Normalize files with mixed line endings (introduced in commit 3a413d1) 2021-06-01 17:55:18 -07:00
RX600v2 Normalize files with mixed line endings (introduced in commit 3a413d1) 2021-06-01 17:55:18 -07:00
RX700v3_DPFPU Add SPDX-License-Identifier: MIT to MIT licensed files. 2021-05-27 19:57:55 -07:00
STR75x Normalize files with mixed line endings (introduced in commit 3a413d1) 2021-06-01 17:55:18 -07:00
TriCore_1782 Normalize files with mixed line endings (introduced in commit 3a413d1) 2021-06-01 17:55:18 -07:00