Adding upstream version 1.20.14.upstream/1.20.14upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 35 insertions, 0 deletions

diff --git a/misc/cgo/test/setgid2_linux.go b/misc/cgo/test/setgid2_linux.go
new file mode 100644
index 0000000..438f5ae
--- /dev/null
+++ b/misc/cgo/test/setgid2_linux.go
@@ -0,0 +1,35 @@
+// Copyright 2022 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Stress test setgid and thread creation. A thread
+// can get a SIGSETXID signal early on at thread
+// initialization, causing crash. See issue 53374.
+
+package cgotest
+
+/*
+#include <sys/types.h>
+#include <unistd.h>
+*/
+import "C"
+
+import (
+	"runtime"
+	"testing"
+)
+
+func testSetgidStress(t *testing.T) {
+	const N = 50
+	ch := make(chan int, N)
+	for i := 0; i < N; i++ {
+		go func() {
+			C.setgid(0)
+			ch <- 1
+			runtime.LockOSThread() // so every goroutine uses a new thread
+		}()
+	}
+	for i := 0; i < N; i++ {
+		<-ch
+	}
+}