From 0e907c4298e635d5960b1aeefde2294a6a795cbc Mon Sep 17 00:00:00 2001
From: Fabricio Voznika <fvoznika@google.com>
Date: Tue, 13 Aug 2019 13:32:18 -0700
Subject: [PATCH] Fix file mode check in pipeOperations

PiperOrigin-RevId: 263203441
---
 pkg/sentry/fs/fdpipe/pipe.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkg/sentry/fs/fdpipe/pipe.go b/pkg/sentry/fs/fdpipe/pipe.go
index 5a0a67eab..669ffcb75 100644
--- a/pkg/sentry/fs/fdpipe/pipe.go
+++ b/pkg/sentry/fs/fdpipe/pipe.go
@@ -87,7 +87,7 @@ func (p *pipeOperations) init() error {
 		log.Warningf("pipe: cannot stat fd %d: %v", p.file.FD(), err)
 		return syscall.EINVAL
 	}
-	if s.Mode&syscall.S_IFIFO != syscall.S_IFIFO {
+	if (s.Mode & syscall.S_IFMT) != syscall.S_IFIFO {
 		log.Warningf("pipe: cannot load fd %d as pipe, file type: %o", p.file.FD(), s.Mode)
 		return syscall.EINVAL
 	}