VisionFive2 Linux kernel

StarFive Tech Linux Kernel for VisionFive (JH7110) boards (mirror)

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author: David Windsor <dave@nullcore.net> 2017-06-10 22:50:31 -0400 committer: Kees Cook <keescook@chromium.org> 2018-01-15 12:07:51 -0800 commit: 6391af6f5829e8767c6d5e777194c9ecdd5d7ead parent: 6a9b88204cb00da2140afda27848b5d17a7402a3
Commit Summary:
vfs: Copy struct mount.mnt_id to userspace using put_user()
Diffstat:
1 file changed, 1 insertion, 2 deletions
diff --git a/fs/fhandle.c b/fs/fhandle.c
index 0ace128f5d23..0ee727485615 100644
--- a/fs/fhandle.c
+++ b/fs/fhandle.c
@@ -69,8 +69,7 @@ static long do_sys_name_to_handle(struct path *path,
 	} else
 		retval = 0;
 	/* copy the mount id */
-	if (copy_to_user(mnt_id, &real_mount(path->mnt)->mnt_id,
-			 sizeof(*mnt_id)) ||
+	if (put_user(real_mount(path->mnt)->mnt_id, mnt_id) ||
 	    copy_to_user(ufh, handle,
 			 sizeof(struct file_handle) + handle_bytes))
 		retval = -EFAULT;