1 files changed, 8 insertions, 3 deletions

diff --git a/fs/aio.c b/fs/aio.c
index ded94c4fa30..9798d4edfd8 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -977,12 +977,17 @@ static ssize_t aio_setup_vectored_rw(int rw, struct kiocb *kiocb, bool compat)
 
 static ssize_t aio_setup_single_vector(int rw, struct kiocb *kiocb)
 {
-	if (unlikely(!access_ok(!rw, kiocb->ki_buf, kiocb->ki_nbytes)))
-		return -EFAULT;
+	size_t len = kiocb->ki_nbytes;
+
+	if (len > MAX_RW_COUNT)
+		len = MAX_RW_COUNT;
+
+	if (unlikely(!access_ok(!rw, kiocb->ki_buf, len)))
+                return -EFAULT;
 
 	kiocb->ki_iovec = &kiocb->ki_inline_vec;
 	kiocb->ki_iovec->iov_base = kiocb->ki_buf;
-	kiocb->ki_iovec->iov_len = kiocb->ki_nbytes;
+	kiocb->ki_iovec->iov_len = len;
 	kiocb->ki_nr_segs = 1;
 	return 0;
 }