From 38ee337f45953cb3ecfc4ab170c639afe01606d1 Mon Sep 17 00:00:00 2001 From: Tim Murray Date: Thu, 18 Aug 2016 11:13:26 -0700 Subject: [PATCH] Prevent FIFO threads from creating more FIFO threads. SCHED_FIFO threads shouldn't be able to arbitrarily create more SCHED_FIFO threads. bug 30898724 Change-Id: I3704b47b88b573313e9b1610556648c8595d4108 --- services/core/java/com/android/server/os/SchedulingPolicyService.java | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/services/core/java/com/android/server/os/SchedulingPolicyService.java b/services/core/java/com/android/server/os/SchedulingPolicyService.java index f98012b39a86..62c9f4c116c2 100644 --- a/services/core/java/com/android/server/os/SchedulingPolicyService.java +++ b/services/core/java/com/android/server/os/SchedulingPolicyService.java @@ -55,7 +55,8 @@ public class SchedulingPolicyService extends ISchedulingPolicyService.Stub { Process.setThreadGroup(tid, Binder.getCallingPid() == pid ? Process.THREAD_GROUP_AUDIO_SYS : Process.THREAD_GROUP_AUDIO_APP); // must be in this order or it fails the schedulability constraint - Process.setThreadScheduler(tid, Process.SCHED_FIFO, prio); + Process.setThreadScheduler(tid, Process.SCHED_FIFO | Process.SCHED_RESET_ON_FORK, + prio); } catch (RuntimeException e) { return PackageManager.PERMISSION_DENIED; } -- 2.11.0