From 6d75d10ec8bfd59f217afaeab374553d096de8f1 Mon Sep 17 00:00:00 2001
From: "andrey.bychkov" <andrey@signalmodelling.ru>
Date: Wed, 5 Aug 2026 23:20:58 +0300
Subject: [PATCH] fix: PICAN openDevice buffer overflow in ifr_name

---
 libs/main/io_devices/pican.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libs/main/io_devices/pican.cpp b/libs/main/io_devices/pican.cpp
index 57bdac55..3a6f2708 100644
--- a/libs/main/io_devices/pican.cpp
+++ b/libs/main/io_devices/pican.cpp
@@ -73,7 +73,8 @@ bool PICAN::openDevice() {
 	}
 	fcntl(sock, F_SETFL, fcntl(sock, F_GETFL) | O_NONBLOCK);
 	ifreq ifr;
-	strcpy(ifr.ifr_name, path().dataAscii());
+	piZeroMemory(ifr);
+	strncpy(ifr.ifr_name, path().dataAscii(), sizeof(ifr.ifr_name));
 	piCout << "PICAN try to get interface index...";
 	if (ioctl(sock, SIOCGIFINDEX, &ifr) < 0) {
 		piCoutObj << "Error! while determin the interface ioctl";