odrefresh: add permission to sigkill child processes

Bug: 177432913
Bug: 196969404
Test: manually decrease odrefresh compilation timeout, no avc denied
Change-Id: Ic89dcdb64974ac00c83504d876a94d8b5c6b2a29
diff --git a/private/odrefresh.te b/private/odrefresh.te
index 7a64247..3db1ae8 100644
--- a/private/odrefresh.te
+++ b/private/odrefresh.te
@@ -21,9 +21,15 @@
 # Run dex2oat in its own sandbox.
 domain_auto_trans(odrefresh, dex2oat_exec, dex2oat)
 
+# Allow odrefresh to kill dex2oat if compilation times out.
+allow odrefresh dex2oat:process sigkill;
+
 # Run dexoptanalyzer in its own sandbox.
 domain_auto_trans(odrefresh, dexoptanalyzer_exec, dexoptanalyzer)
 
+# Allow odrefresh to kill dexoptanalyzer if analysis times out.
+allow odrefresh dexoptanalyzer:process sigkill;
+
 # Use devpts and fd from odsign (which exec()'s odrefresh)
 allow odrefresh odsign_devpts:chr_file { read write };
 allow odrefresh odsign:fd use;