X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Finfiniband%2Fcore%2Fucma.c;h=886f61ea6cc7d2f58e8d8c739c511ccd7dc78df7;hb=52f993b8e89487ec9ee15a7fb4979e0f09a45b27;hp=8b5a934e1133d80b42e12d1790b3672d73e4a779;hpb=e09b41010ba33a20a87472ee821fa407a5b8da36;p=kvmfornfv.git

diff --git a/kernel/drivers/infiniband/core/ucma.c b/kernel/drivers/infiniband/core/ucma.c
index 8b5a934e1..886f61ea6 100644
--- 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;