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spi_flash: check physical address in mmap against flash chip size

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This commit is contained in:
Ivan Grokhotkov 2016-10-21 19:33:42 +08:00
parent b6693225c1
commit e229ec0340
1 changed files with 3 additions and 0 deletions
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3
components/spi_flash/flash_mmap.c
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@ -88,6 +88,9 @@ esp_err_t IRAM_ATTR spi_flash_mmap(uint32_t src_addr, size_t size, spi_flash_mma
if (src_addr & 0xffff) { if (src_addr & 0xffff) {
return ESP_ERR_INVALID_ARG; return ESP_ERR_INVALID_ARG;
} }
if (src_addr + size > g_rom_flashchip.chip_size) {
return ESP_ERR_INVALID_ARG;
}
spi_flash_disable_interrupts_caches_and_other_cpu(); spi_flash_disable_interrupts_caches_and_other_cpu();
if (s_mmap_page_refcnt[0] == 0) { if (s_mmap_page_refcnt[0] == 0) {
spi_flash_mmap_init(); spi_flash_mmap_init();