main: fix Array out of bounds access

baresip · Sep 4, 2024 · 222f032 · 222f032
1 parent 1bf492a
commit 222f032
Showing 1 changed file with 2 additions and 3 deletions.
diff --git a/src/main/main.c b/src/main/main.c
@@ -755,14 +755,13 @@ static int fd_poll(struct re *re)
 		FD_ZERO(&wfds);
 		FD_ZERO(&efds);
 
-		for (i = 0; cfds < nfds; i++) {
+		for (i = 0; (i < re->maxfds) && (cfds < nfds); i++) {
 			fhs = re->fhsl[i];
 
+			++cfds;
 			if (!fhs || !fhs->fh)
 				continue;
 
-			++cfds;
-
 			re_sock_t fd = fhs->fd;
 			if (fhs->flags & FD_READ)
 				FD_SET(fd, &rfds);