fix possible buffer overrun.

jfdelnero · jfdelnero · commit 62ccbf81ac19 · 2025-10-29T19:43:59.000+01:00
diff --git a/src/msgqueue.c b/src/msgqueue.c
@@ -101,7 +101,9 @@ static void* msgqueue_thread( void* arg )
 		}
 		else if (numreceived <= MAX_MSG_SIZE)
 		{
-			message[numreceived] = 0; // ensure zero termination
+			message[numreceived] = 0;
+			message[sizeof(message) - 1] = 0; // ensure zero termination
+
 			PRINT_DEBUG("%s : New message received : %s", __func__, message);
 
 			if (!strncmp(message,"addstorage:", 11))

Original file line number	Diff line number	Diff line change
`@@ -101,7 +101,9 @@ static void* msgqueue_thread( void* arg )`
`101`	`101`	`}`
`102`	`102`	`else if (numreceived <= MAX_MSG_SIZE)`
`103`	`103`	`{`
`104`		`- message[numreceived] = 0; // ensure zero termination`
	`104`	`+ message[numreceived] = 0;`
	`105`	`+ message[sizeof(message) - 1] = 0; // ensure zero termination`
	`106`	`+`
`105`	`107`	`PRINT_DEBUG("%s : New message received : %s", __func__, message);`
`106`	`108`
`107`	`109`	`if (!strncmp(message,"addstorage:", 11))`