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51ea2bfe62
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> |
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| .. | ||
| ARM7_LPC21xx | ||
| ARM_CA9 | ||
| ARM_CM0 | ||
| ARM_CM3 | ||
| ARM_CM4_MPU | ||
| ARM_CM4F | ||
| ARM_CM7 | ||