Merge pull request #27 from orbisai0security/fix-ble-rx-buf-bounds-check

fix: add buffer-length check in ble.cpp
2026-05-21 19:52:00 +00:00
parent 09b5ba8c72 5079ea1af4
commit c25e89672a
1 changed files with 1 additions and 2 deletions
@@ -126,8 +126,7 @@ class ServerCallbacks : public NimBLEServerCallbacks {
 class RxCallbacks : public NimBLECharacteristicCallbacks {
    void onWrite(NimBLECharacteristic* chr, NimBLEConnInfo& info) override {
        std::string val = chr->getValue();
-        size_t len = val.length();
-        if (len >= BLE_BUF_SIZE) len = BLE_BUF_SIZE - 1;
+        size_t len = std::min(val.length(), (size_t)(BLE_BUF_SIZE - 1));
        memcpy(rx_buf, val.c_str(), len);
        rx_buf[len] = '\0';
        data_ready = true;