diff options
| -rw-r--r-- | core/java/android/os/Binder.java | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/core/java/android/os/Binder.java b/core/java/android/os/Binder.java index 218d4bb8514f..0c753a51c508 100644 --- a/core/java/android/os/Binder.java +++ b/core/java/android/os/Binder.java @@ -309,7 +309,11 @@ public class Binder implements IBinder { * If the current thread is not currently executing an incoming transaction, * then its own PID is returned. * - * Warning: oneway transactions do not receive PID. + * Warning: oneway transactions do not receive PID. Even if you expect + * a transaction to be synchronous, a misbehaving client could send it + * as a asynchronous call and result in a 0 PID here. Additionally, if + * there is a race and the calling process dies, the PID may still be + * 0 for a synchronous call. */ @CriticalNative public static final native int getCallingPid(); |