diff --git a/lmkd/lmkd.c b/lmkd/lmkd.c
index 50bf6a4..aa3db8a 100644
--- a/lmkd/lmkd.c
+++ b/lmkd/lmkd.c
@@ -230,7 +230,7 @@
 }
 
 static void writefilestring(char *path, char *s) {
-    int fd = open(path, O_WRONLY);
+    int fd = open(path, O_WRONLY | O_CLOEXEC);
     int len = strlen(s);
     int ret;
 
@@ -487,7 +487,7 @@
 
     memset(mip, 0, sizeof(struct sysmeminfo));
 
-    fd = open(ZONEINFO_PATH, O_RDONLY);
+    fd = open(ZONEINFO_PATH, O_RDONLY | O_CLOEXEC);
     if (fd == -1) {
         ALOGE("%s open: errno=%d", ZONEINFO_PATH, errno);
         return -1;
@@ -518,7 +518,7 @@
     ssize_t ret;
 
     snprintf(path, PATH_MAX, "/proc/%d/statm", pid);
-    fd = open(path, O_RDONLY);
+    fd = open(path, O_RDONLY | O_CLOEXEC);
     if (fd == -1)
         return -1;
 
@@ -541,7 +541,7 @@
     ssize_t ret;
 
     snprintf(path, PATH_MAX, "/proc/%d/cmdline", pid);
-    fd = open(path, O_RDONLY);
+    fd = open(path, O_RDONLY | O_CLOEXEC);
     if (fd == -1)
         return NULL;
     ret = read_all(fd, line, sizeof(line) - 1);
@@ -686,19 +686,19 @@
     struct epoll_event epev;
     int ret;
 
-    mpfd = open(MEMCG_SYSFS_PATH "memory.pressure_level", O_RDONLY);
+    mpfd = open(MEMCG_SYSFS_PATH "memory.pressure_level", O_RDONLY | O_CLOEXEC);
     if (mpfd < 0) {
         ALOGI("No kernel memory.pressure_level support (errno=%d)", errno);
         goto err_open_mpfd;
     }
 
-    evctlfd = open(MEMCG_SYSFS_PATH "cgroup.event_control", O_WRONLY);
+    evctlfd = open(MEMCG_SYSFS_PATH "cgroup.event_control", O_WRONLY | O_CLOEXEC);
     if (evctlfd < 0) {
         ALOGI("No kernel memory cgroup event control (errno=%d)", errno);
         goto err_open_evctlfd;
     }
 
-    evfd = eventfd(0, EFD_NONBLOCK);
+    evfd = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
     if (evfd < 0) {
         ALOGE("eventfd failed for level %s; errno=%d", levelstr, errno);
         goto err_eventfd;