Linux sandbox: restrict futex operations.

sandbox/linux/seccomp-bpf-helpers/baseline_policy_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "sandbox/linux/seccomp-bpf-helpers/baseline_policy.h"
 
 #include <errno.h>
+#include <linux/futex.h>
 #include <sched.h>
 #include <signal.h>
 #include <string.h>
 #include <sys/socket.h>
 #include <sys/stat.h>
 #include <sys/syscall.h>
+#include <sys/time.h>
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <unistd.h>
 
 #include "base/files/scoped_file.h"
 #include "base/macros.h"
 #include "base/posix/eintr_wrapper.h"
 #include "base/threading/thread.h"
 #include "build/build_config.h"
 #include "sandbox/linux/seccomp-bpf-helpers/sigsys_handlers.h"
@@ skipping 210 matching lines @@
 TEST_BASELINE_SIGSYS(__NR_sysinfo);
 TEST_BASELINE_SIGSYS(__NR_inotify_init);
 TEST_BASELINE_SIGSYS(__NR_init_module);
 TEST_BASELINE_SIGSYS(__NR_keyctl);
 TEST_BASELINE_SIGSYS(__NR_mq_open);
 TEST_BASELINE_SIGSYS(__NR_vserver);
 TEST_BASELINE_SIGSYS(__NR_getcpu);
 TEST_BASELINE_SIGSYS(__NR_setpgid);
 TEST_BASELINE_SIGSYS(__NR_getitimer);
 
+BPF_DEATH_TEST_C(BaselinePolicy,
+                 FutexWithRequeuePriorityInheritence,
+                 DEATH_MESSAGE(GetErrorMessageContentForTests()),
+                 BaselinePolicy) {
+  syscall(__NR_futex, NULL, FUTEX_CMP_REQUEUE_PI, 0, NULL, NULL, 0);
+  _exit(1);
+}
+
+BPF_DEATH_TEST_C(BaselinePolicy,
+                 FutexWithBannedBit,
+                 DEATH_MESSAGE(GetErrorMessageContentForTests()),
+                 BaselinePolicy) {
+  syscall(__NR_futex, NULL, 512 | FUTEX_WAKE , 0, NULL, NULL, 0);
+  _exit(1);
+}
+
+
 }  // namespace
 
 }  // namespace sandbox