iiod-client: iiod_client_read_mask(): Zero terminate buffer

Zero terminate the words buffer, before passing it to sscanf(). Otherwise it might read beyond the bounds of the buffer. Signed-off-by: Lars-Peter Clausen <[email protected]>
analogdevicesinc · Feb 22, 2016 · 1856316 · 1856316
1 parent dba8a15
commit 1856316
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/iiod-client.c b/iiod-client.c
@@ -492,6 +492,8 @@ static int iiod_client_read_mask(struct iiod_client *client,
 	else
 		ret = 0;
 
+	buf[words*8] = '\0';
+
 	DEBUG("Reading mask\n");
 
 	for (i = words, ptr = buf; i > 0; i--) {