From 9547e0e66d31ed8b3e3dcec7fb3c6ea96bda7ccc Mon Sep 17 00:00:00 2001
From: Kim Alvefur <zash@zash.se>
Date: Thu, 11 Oct 2018 18:52:12 +0200
Subject: util.poll: Handle failed epoll FD creation

---
 util-src/poll.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/util-src/poll.c b/util-src/poll.c
index 293c8c2b..d2d9dc03 100644
--- a/util-src/poll.c
+++ b/util-src/poll.c
@@ -386,8 +386,19 @@ int Lnew(lua_State *L) {
 
 	/* Initialize state */
 #ifdef USE_EPOLL
-	state->epoll_fd = epoll_create1(0);
+	state->epoll_fd = -1;
 	state->processed = 0;
+
+	int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
+
+	if(epoll_fd <= 0) {
+		lua_pushnil(L);
+		lua_pushstring(L, strerror(errno));
+		lua_pushinteger(L, errno);
+		return 3;
+	}
+
+	state->epoll_fd = epoll_fd;
 #else
 	FD_ZERO(&state->wantread);
 	FD_ZERO(&state->wantwrite);
-- 
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