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fix(spi_flash): check for safe write address in encrypted flash API

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Mahavir Jain
2024-02-14 13:45:11 +05:30
parent 66d71efb87
commit 5ac48e7468
1 changed files with 3 additions and 1 deletions
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4
components/spi_flash/esp_flash_api.c
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@@ -946,11 +946,13 @@ esp_err_t IRAM_ATTR esp_flash_write(esp_flash_t *chip, const void *buffer, uint3
esp_err_t IRAM_ATTR esp_flash_write_encrypted(esp_flash_t *chip, uint32_t address, const void *buffer, uint32_t length) esp_err_t IRAM_ATTR esp_flash_write_encrypted(esp_flash_t *chip, uint32_t address, const void *buffer, uint32_t length)
{ {
esp_err_t err = rom_spiflash_api_funcs->chip_check(&chip); esp_err_t err = rom_spiflash_api_funcs->chip_check(&chip);
VERIFY_CHIP_OP(write);
// Flash encryption only support on main flash. // Flash encryption only support on main flash.
if (chip != esp_flash_default_chip) { if (chip != esp_flash_default_chip) {
return ESP_ERR_NOT_SUPPORTED; return ESP_ERR_NOT_SUPPORTED;
} }
if (err != ESP_OK) return err; CHECK_WRITE_ADDRESS(chip, address, length);
if (buffer == NULL || address + length > chip->size) { if (buffer == NULL || address + length > chip->size) {
return ESP_ERR_INVALID_ARG; return ESP_ERR_INVALID_ARG;
} }