fs/pipe.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/pipe.c b/fs/pipe.c
index 64a494cef0a0..b7889c2ebaf4 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -863,6 +863,10 @@ pipe_rdwr_open(struct inode *inode, struct file *filp)
 {
 	int ret = -ENOENT;
 
+	/* We rely on the pipe reader/writer counts to keep track of the pipe */
+	if (WARN_ON_ONCE(!(filp->f_mode & (FMODE_READ|FMODE_WRITE))))
+		return -EINVAL;
+
 	mutex_lock(&inode->i_mutex);
 
 	if (inode->i_pipe) {