File freerdp-CVE-2022-39320.patch of Package freerdp.31491

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File freerdp-CVE-2022-39320.patch of Package freerdp.31491

From eddcae1e064ba567418536953db2d3ba538c8d34 Mon Sep 17 00:00:00 2001
From: akallabeth <akallabeth@posteo.net>
Date: Thu, 13 Oct 2022 09:00:48 +0200
Subject: [PATCH] Added missing length check in urb_control_transfer

(cherry picked from commit ce838e2477cb8173ea5e98f35ad55ff41ea5117d)
---
 channels/urbdrc/client/data_transfer.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/channels/urbdrc/client/data_transfer.c b/channels/urbdrc/client/data_transfer.c
index b067637aa..31dcc62e7 100644
--- a/channels/urbdrc/client/data_transfer.c
+++ b/channels/urbdrc/client/data_transfer.c
@@ -677,7 +677,11 @@ static UINT urb_control_transfer(IUDEVICE* pdev, URBDRC_CHANNEL_CALLBACK* callba
 	buffer = Stream_Pointer(out);
 
 	if (transferDir == USBD_TRANSFER_DIRECTION_OUT)
+	{
+		if (Stream_GetRemainingLength(s) < OutputBufferSize)
+			return ERROR_INVALID_DATA;
 		Stream_Copy(s, out, OutputBufferSize);
+	}
 
 	/**  process TS_URB_CONTROL_TRANSFER */
 	if (!pdev->control_transfer(pdev, RequestId, EndpointAddress, TransferFlags, bmRequestType,
-- 
2.39.1

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File freerdp-CVE-2022-39320.patch of Package freerdp.31491

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