Upgrade to 4.4.50-rt62

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

diff --git a/kernel/drivers/infiniband/core/ucma.c b/kernel/drivers/infiniband/core/ucma.c
index 8b5a934..886f61e 100644 (file)
--- a/kernel/drivers/infiniband/core/ucma.c
+++ b/kernel/drivers/infiniband/core/ucma.c
@@ -1574,6 +1574,9 @@ static ssize_t ucma_write(struct file *filp, const char __user *buf,
        struct rdma_ucm_cmd_hdr hdr;
        ssize_t ret;
 
+       if (WARN_ON_ONCE(!ib_safe_file_access(filp)))
+               return -EACCES;
+
        if (len < sizeof(hdr))
                return -EINVAL;