From: David Laight <david.laight.linux@gmail.com>
Date: Mon, 8 Jun 2026 09:54:57 +0000 (+0100)
Subject: RDMA/mlx5: Use strscpy() to copy strings into arrays
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6eb287509dcf3508d2363934e82d9da7cf612f99;p=thirdparty%2Fkernel%2Flinux.git

RDMA/mlx5: Use strscpy() to copy strings into arrays

Replacing strcpy() with strscpy() ensures that overflow of the target
buffer cannot happen.

Link: https://patch.msgid.link/r/20260608095500.2567-2-david.laight.linux@gmail.com
Signed-off-by: David Laight <david.laight.linux@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---

diff --git a/drivers/infiniband/hw/mlx5/data_direct.c b/drivers/infiniband/hw/mlx5/data_direct.c
index 8e89dbe40c239..d57484245c382 100644
--- a/drivers/infiniband/hw/mlx5/data_direct.c
+++ b/drivers/infiniband/hw/mlx5/data_direct.c
@@ -88,7 +88,7 @@ int mlx5_data_direct_ib_reg(struct mlx5_ib_dev *ibdev, char *vuid)
 		return -ENOMEM;
 
 	reg->ibdev = ibdev;
-	strcpy(reg->vuid, vuid);
+	strscpy(reg->vuid, vuid);
 
 	mutex_lock(&mlx5_data_direct_mutex);
 	list_for_each_entry(dev, &mlx5_data_direct_dev_list, list) {