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Heap protect (#747)

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Setting configENABLE_HEAP_PROTECTOR to 1 obfuscates heap
block pointers by XORing them with an application supplied
canary value. This obfuscation helps to catch heap corruption
should a heap buffer overflow occur.

This PR also adds heap bounds checking to heap_4 and heap_5.

This PR also adds some additional integer underflow checks.
This commit is contained in:
oliverlavery 2023-08-23 05:57:54 +01:00 • committed by GitHub
parent b9f488a713
commit 0d9649ca45
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3 changed files with 201 additions and 53 deletions
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4
include/FreeRTOS.h
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@ -1071,6 +1071,10 @@
#define configAPPLICATION_ALLOCATED_HEAP 0
#endif
#ifndef configENABLE_HEAP_PROTECTOR
#define configENABLE_HEAP_PROTECTOR 0
#endif
#ifndef configUSE_TASK_NOTIFICATIONS
#define configUSE_TASK_NOTIFICATIONS 1
#endif