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feat(esp_tee): Miscellaneous fixes and improvements

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- Fix intermittent TEE stack underflow test failures
- Fix out-of-bounds access Coverity report from the attestation
  component
- Add appropriate checks and asserts for TEE flash memory regions'
  sizes
This commit is contained in:
Laukik Hase
2026-03-12 19:11:04 +05:30
parent 35f6c201ad
commit 250d757bb9
7 changed files with 35 additions and 25 deletions
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11
components/esp_tee/include/private/esp_tee_binary.h
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2024-2026 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -27,6 +27,7 @@ extern "C" {
#define ALIGN_UP_TO_MMU_PAGE_SIZE(addr) (((addr) + (SOC_MMU_PAGE_SIZE) - 1) & ~((SOC_MMU_PAGE_SIZE) - 1))
#define ALIGN_DOWN_TO_MMU_PAGE_SIZE(addr) ((addr) & ~((SOC_MMU_PAGE_SIZE) - 1))
/* Alignment Checks */
#if ((CONFIG_SECURE_TEE_IRAM_SIZE) & (0xFF))
#error "CONFIG_SECURE_TEE_IRAM_SIZE must be 256-byte (0x100) aligned"
#endif
@@ -43,6 +44,14 @@ extern "C" {
#error "CONFIG_SECURE_TEE_INTR_STACK_SIZE must be 16-byte (0x10) aligned"
#endif
#if ((CONFIG_SECURE_TEE_IROM_SIZE) % SOC_MMU_PAGE_SIZE)
#error "CONFIG_SECURE_TEE_IROM_SIZE must be a multiple of SOC_MMU_PAGE_SIZE"
#endif
#if ((CONFIG_SECURE_TEE_DROM_SIZE) % SOC_MMU_PAGE_SIZE)
#error "CONFIG_SECURE_TEE_DROM_SIZE must be a multiple of SOC_MMU_PAGE_SIZE"
#endif
/* TEE Secure Storage partition label and NVS namespace */
#define ESP_TEE_SEC_STG_PART_LABEL "secure_storage"
#define ESP_TEE_SEC_STG_NVS_NAMESPACE "tee_sec_stg_ns"