Check parameters validity

src/common.c

@@ -2952,6 +2952,11 @@ int stlink_erase_flash_page(stlink_t *sl, stm32_addr_t flashaddr) {
 }
 
 int stlink_erase_flash_section(stlink_t *sl, stm32_addr_t base_addr, size_t size) {
+  if (base_addr < sl->flash_base || (base_addr + size) > (sl->flash_base + sl->flash_size)) {
+    ELOG("Invalid address or flash size\n");
+    return (-1);
+  }
+
   stm32_addr_t addr = (stm32_addr_t)base_addr;
 
   do {

src/st-flash/flash.c

@@ -168,7 +168,7 @@ int main(int ac, char** av) {
             goto on_error;
         }
     } else if (o.cmd == FLASH_CMD_ERASE) {
-        if (o.size != 0 && o.addr >= sl->flash_base && (o.addr + o.size) <= (sl->flash_base + sl->flash_size))
+        if (o.size > 0 && o.addr > 0)
           err = stlink_erase_flash_section(sl, o.addr, o.size);
         else
           err = stlink_erase_flash_mass(sl);