File freerdp-CVE-2022-39318.patch of Package freerdp.27686

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File freerdp-CVE-2022-39318.patch of Package freerdp.27686

From 3762229c3e9c602014af08b2478b2364a900f997 Mon Sep 17 00:00:00 2001
From: akallabeth <akallabeth@posteo.net>
Date: Thu, 13 Oct 2022 08:27:41 +0200
Subject: [PATCH] Fixed division by zero in urbdrc

(cherry picked from commit 731f8419d04b481d7160de1f34062d630ed48765)
---
 channels/urbdrc/client/libusb/libusb_udevice.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/channels/urbdrc/client/libusb/libusb_udevice.c b/channels/urbdrc/client/libusb/libusb_udevice.c
index ce231ba36..c594eedda 100644
--- a/channels/urbdrc/client/libusb/libusb_udevice.c
+++ b/channels/urbdrc/client/libusb/libusb_udevice.c
@@ -1156,12 +1156,18 @@ static int libusb_udev_isoch_transfer(IUDEVICE* idev, URBDRC_CHANNEL_CALLBACK* c
 	else
 		Stream_Seek(user_data->data, (NumberOfPackets * 12));
 
-	iso_packet_size = BufferSize / NumberOfPackets;
-	iso_transfer = libusb_alloc_transfer(NumberOfPackets);
+	if (NumberOfPackets > 0)
+	{
+		iso_packet_size = BufferSize / NumberOfPackets;
+		iso_transfer = libusb_alloc_transfer((int)NumberOfPackets);
+	}
 
 	if (iso_transfer == NULL)
 	{
-		WLog_Print(urbdrc->log, WLOG_ERROR, "Error: libusb_alloc_transfer.");
+		WLog_Print(urbdrc->log, WLOG_ERROR,
+		           "Error: libusb_alloc_transfer [NumberOfPackets=%" PRIu32 ", BufferSize=%" PRIu32
+		           " ]",
+		           NumberOfPackets, BufferSize);
 		async_transfer_user_data_free(user_data);
 		return -1;
 	}
-- 
2.35.3

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File freerdp-CVE-2022-39318.patch of Package freerdp.27686

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