From 2d563a50be17c1b407ca448b1321378c0726dd31 Mon Sep 17 00:00:00 2001 From: akallabeth Date: Mon, 26 Jan 2026 10:59:39 +0100 Subject: [PATCH] [channels,urbdrc] ensure InterfaceNumber is within range --- channels/urbdrc/client/libusb/libusb_udevice.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/channels/urbdrc/client/libusb/libusb_udevice.c b/channels/urbdrc/client/libusb/libusb_udevice.c index 6c2376f74..5341248ec 100644 --- a/channels/urbdrc/client/libusb/libusb_udevice.c +++ b/channels/urbdrc/client/libusb/libusb_udevice.c @@ -539,19 +539,19 @@ static int libusb_udev_select_interface(IUDEVICE* idev, BYTE InterfaceNumber, BY int error = 0; int diff = 0; UDEVICE* pdev = (UDEVICE*)idev; - URBDRC_PLUGIN* urbdrc = NULL; - MSUSB_CONFIG_DESCRIPTOR* MsConfig = NULL; - MSUSB_INTERFACE_DESCRIPTOR** MsInterfaces = NULL; if (!pdev || !pdev->urbdrc) return -1; - urbdrc = pdev->urbdrc; - MsConfig = pdev->MsConfig; + URBDRC_PLUGIN* urbdrc = pdev->urbdrc; + MSUSB_CONFIG_DESCRIPTOR* MsConfig = pdev->MsConfig; if (MsConfig) { - MsInterfaces = MsConfig->MsInterfaces; + if (InterfaceNumber >= MsConfig->NumInterfaces) + return -2; + + MSUSB_INTERFACE_DESCRIPTOR** MsInterfaces = MsConfig->MsInterfaces; if (MsInterfaces) { WLog_Print(urbdrc->log, WLOG_INFO, -- 2.53.0