am f836abef: am 8bd13687: neverallow su_exec:file execute

* commit 'f836abef':
  neverallow su_exec:file execute

domain.te

@@ -370,3 +370,8 @@ neverallow domain domain:{ shm sem msg msgq } *;
 # Do not mount on top of symlinks, fifos, or sockets.
 # Feature parity with Chromium LSM.
 neverallow domain { file_type fs_type dev_type }:{ lnk_file fifo_file sock_file } mounton;
+
+# Nobody should be able to execute su on user builds.
+# On userdebug/eng builds, only dumpstate, shell, and
+# su itself execute su.
+neverallow { domain userdebug_or_eng(`-dumpstate -shell -su') } su_exec:file no_x_file_perms;