From: dongxinhua <dongxinhua@huawei.com>
Date: Sat, 21 Dec 2019 09:44:40 +0000 (+0800)
Subject: fd: only add valid fd to mainloop
X-Git-Tag: lxc-4.0.0~69^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4879faffbfab680dd8fa2ce6bf47849b83926e0c;p=thirdparty%2Flxc.git

fd: only add valid fd to mainloop

Signed-off-by: dongxinhua <dongxinhua@huawei.com>
---

diff --git a/src/lxc/mainloop.c b/src/lxc/mainloop.c
index b169aa6fe..79b4fb747 100644
--- a/src/lxc/mainloop.c
+++ b/src/lxc/mainloop.c
@@ -84,6 +84,8 @@ int lxc_mainloop_add_handler(struct lxc_epoll_descr *descr, int fd,
 	struct epoll_event ev;
 	struct mainloop_handler *handler;
 	struct lxc_list *item;
+	if (fd < 0)
+		return -1;
 
 	handler = malloc(sizeof(*handler));
 	if (!handler)