diff --git a/rootdir/init.rc b/rootdir/init.rc
index b2b904b72..5aae3fba5 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -13,6 +13,9 @@ on early-init
     # Set init and its forked children's oom_adj.
     write /proc/1/oom_score_adj -1000
 
+    # Apply strict SELinux checking of PROT_EXEC on mmap/mprotect calls.
+    write /sys/fs/selinux/checkreqprot 0
+
     # Set the security context for the init process.
     # This should occur before anything else (e.g. ueventd) is started.
     setcon u:r:init:s0