Upgrade to 4.4.50-rt62

[kvmfornfv.git] / kernel / drivers / infiniband / core / ucm.c

diff --git a/kernel/drivers/infiniband/core/ucm.c b/kernel/drivers/infiniband/core/ucm.c
index 6b4e8a0..564adf3 100644 (file)
--- a/kernel/drivers/infiniband/core/ucm.c
+++ b/kernel/drivers/infiniband/core/ucm.c
@@ -48,6 +48,7 @@
 
 #include <asm/uaccess.h>
 
+#include <rdma/ib.h>
 #include <rdma/ib_cm.h>
 #include <rdma/ib_user_cm.h>
 #include <rdma/ib_marshall.h>
@@ -1103,6 +1104,9 @@ static ssize_t ib_ucm_write(struct file *filp, const char __user *buf,
        struct ib_ucm_cmd_hdr hdr;
        ssize_t result;
 
+       if (WARN_ON_ONCE(!ib_safe_file_access(filp)))
+               return -EACCES;
+
        if (len < sizeof(hdr))
                return -EINVAL;