linux: Fix unreliable exec transition logic

The file-descriptors aren't necessarily closed until the second trap, which meant we could get stuck waiting.
frida · Mar 13, 2024 · 4a6e8ee · 4a6e8ee
1 parent 7d19d3f
commit 4a6e8ee
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/linux/frida-helper-backend.vala b/src/linux/frida-helper-backend.vala
@@ -753,6 +753,8 @@ namespace Frida {
 
 		public async void wait_for_exec (Cancellable? cancellable) throws Error, IOError {
 			yield wait_for_signal (TRAP, cancellable);
+			step ();
+			yield wait_for_signal (TRAP, cancellable);
 		}
 	}