# HG changeset patch
# User Kim Alvefur <zash@zash.se>
# Date 1780854159 -7200
# Node ID 3870f944dec4a7c7a5a0314539acdddbaa79ab46
# Parent  55a7143a58ecc8e973e5c8ee30f2077dcc4a5da9# Parent  75d09be04f130bd513a59f10ae2d736cd7141a79
Merge 13.0->trunk

diff -r 55a7143a58ec -r 3870f944dec4 util-src/poll.c
--- a/util-src/poll.c	Fri Jun 05 16:24:55 2026 +0100
+++ b/util-src/poll.c	Sun Jun 07 19:42:39 2026 +0200
@@ -234,6 +234,13 @@
 #endif
 #ifdef USE_SELECT
 
+	if(fd >= FD_SETSIZE) {
+		luaL_pushfail(L);
+		lua_pushstring(L, strerror(EBADF));
+		lua_pushinteger(L, EBADF);
+		return 3;
+	}
+
 	if(!FD_ISSET(fd, &state->all)) {
 		luaL_pushfail(L);
 		lua_pushstring(L, strerror(ENOENT));
@@ -327,6 +334,13 @@
 #endif
 #ifdef USE_SELECT
 
+	if(fd >= FD_SETSIZE) {
+		luaL_pushfail(L);
+		lua_pushstring(L, strerror(EBADF));
+		lua_pushinteger(L, EBADF);
+		return 3;
+	}
+
 	if(!FD_ISSET(fd, &state->all)) {
 		luaL_pushfail(L);
 		lua_pushstring(L, strerror(ENOENT));