struct kcm_clone only contains fd, and kcm_clone() only
writes this struct, so there is no need to copy it from user.
Cc: Tom Herbert <t...@herbertland.com>
Signed-off-by: Cong Wang <xiyou.wangc...@gmail.com>
---
net/kcm/kcmsock.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/net/kcm/kcmsock.c b/net/kcm/kcmsock.c
index 31762f7..deca20f 100644
--- a/net/kcm/kcmsock.c
+++ b/net/kcm/kcmsock.c
@@ -1707,11 +1707,7 @@ static int kcm_ioctl(struct socket *sock, unsigned int
cmd, unsigned long arg)
struct kcm_clone info;
struct socket *newsock = NULL;
- if (copy_from_user(&info, (void __user *)arg, sizeof(info)))
- return -EFAULT;
-
err = kcm_clone(sock, &info, &newsock);
-
if (!err) {
if (copy_to_user((void __user *)arg, &info,
sizeof(info))) {
--
2.5.5
