status_t ACodec::handleSetSurface(const sp<Surface> &surface) {
 if (surface == NULL) {
 if (mNativeWindow != NULL) {
            ALOGW("cannot unset a surface");
 return INVALID_OPERATION;
 }
 return OK;
 }

 if (mNativeWindow == NULL) {
        ALOGW("component was not configured with a surface");
 return INVALID_OPERATION;
 }

 ANativeWindow *nativeWindow = surface.get();
 if (mBuffers[kPortIndexInput].size() == 0) {
        mNativeWindow = surface;
 return OK;
 }

 if (mTunneled) {
        ALOGW("cannot change tunneled surface");
 return INVALID_OPERATION;
 }

 int usageBits = 0;
 status_t err = setupNativeWindowSizeFormatAndUsage(nativeWindow, &usageBits);
 if (err != OK) {
 return err;
 }

 int ignoredFlags = kVideoGrallocUsage;
 if ((usageBits & ~(mNativeWindowUsageBits | ignoredFlags)) != 0) {
        ALOGW("cannot change usage from %#x to %#x", mNativeWindowUsageBits, usageBits);
 return BAD_VALUE;
 }

 int minUndequeuedBuffers = 0;
    err = nativeWindow->query(
            nativeWindow, NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS,
 &minUndequeuedBuffers);
 if (err != 0) {
        ALOGE("NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS query failed: %s (%d)",
                strerror(-err), -err);
 return err;
 }
 if (minUndequeuedBuffers > (int)mNumUndequeuedBuffers) {
        ALOGE("new surface holds onto more buffers (%d) than planned for (%zu)",
                minUndequeuedBuffers, mNumUndequeuedBuffers);
 return BAD_VALUE;
 }

 Vector<BufferInfo> &buffers = mBuffers[kPortIndexOutput];
    ALOGV("setting up surface for %zu buffers", buffers.size());

    err = native_window_set_buffer_count(nativeWindow, buffers.size());
 if (err != 0) {
        ALOGE("native_window_set_buffer_count failed: %s (%d)", strerror(-err),
 -err);
 return err;
 }

    surface->getIGraphicBufferProducer()->allowAllocation(true);

 for (size_t i = 0; i < buffers.size(); ++i) {
 const BufferInfo &info = buffers[i];
 if (storingMetadataInDecodedBuffers()
 && !mLegacyAdaptiveExperiment
 && info.mStatus == BufferInfo::OWNED_BY_NATIVE_WINDOW) {
            ALOGV("skipping buffer %p", info.mGraphicBuffer->getNativeBuffer());
 continue;
 }
        ALOGV("attaching buffer %p", info.mGraphicBuffer->getNativeBuffer());

        err = surface->attachBuffer(info.mGraphicBuffer->getNativeBuffer());
 if (err != OK) {
            ALOGE("failed to attach buffer %p to the new surface: %s (%d)",
                    info.mGraphicBuffer->getNativeBuffer(),
                    strerror(-err), -err);
 return err;
 }
 }

 if (!storingMetadataInDecodedBuffers() || mLegacyAdaptiveExperiment) {
 for (size_t i = 0; i < buffers.size(); ++i) {
 BufferInfo &info = buffers.editItemAt(i);
 if (info.mStatus == BufferInfo::OWNED_BY_NATIVE_WINDOW) {
                ALOGV("canceling buffer %p", info.mGraphicBuffer->getNativeBuffer());
                err = nativeWindow->cancelBuffer(
                        nativeWindow, info.mGraphicBuffer->getNativeBuffer(), info.mFenceFd);
                info.mFenceFd = -1;
 if (err != OK) {
                    ALOGE("failed to cancel buffer %p to the new surface: %s (%d)",
                            info.mGraphicBuffer->getNativeBuffer(),
                            strerror(-err), -err);
 return err;
 }
 }
 }
 (void)surface->getIGraphicBufferProducer()->allowAllocation(false);
 }

 if (mFlags & kFlagPushBlankBuffersToNativeWindowOnShutdown) {
        pushBlankBuffersToNativeWindow(mNativeWindow.get());
 }

    mNativeWindow = nativeWindow;
    mNativeWindowUsageBits = usageBits;
 return OK;
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.