X-Git-Url: http://git.meshlink.io/?p=meshlink;a=blobdiff_plain;f=src%2Fmeshlink.c;h=e50be188b32ef9b19b96c2961766da4ef2d60bc4;hp=14ff7155888c96a04ff33945dfd71dcf9e4481dd;hb=f95981a276aa0dbd03f51190949fa8c5db74d8ff;hpb=184155443a03b095155b210945a705b7f936cc4d

diff --git a/src/meshlink.c b/src/meshlink.c
index 14ff7155..e50be188 100644
--- a/src/meshlink.c
+++ b/src/meshlink.c
@@ -3675,6 +3675,11 @@ static void channel_poll(struct utcp_connection *connection, size_t len) {
 		if(aio->data) {
 			sent = utcp_send(connection, (char *)aio->data + aio->done, todo);
 		} else {
+			/* Limit the amount we read at once to avoid stack overflows */
+			if(todo > 65536) {
+				todo = 65536;
+			}
+
 			char buf[todo];
 			ssize_t result = read(aio->fd, buf, todo);