From: Fushuai Wang <[email protected]> Use copy_from_user_nul() instead of copy_from_user() to simplify the code.
No functional change. Signed-off-by: Fushuai Wang <[email protected]> --- kernel/user_namespace.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c index 03cb63883d04..881a05a3502c 100644 --- a/kernel/user_namespace.c +++ b/kernel/user_namespace.c @@ -1239,9 +1239,8 @@ ssize_t proc_setgroups_write(struct file *file, const char __user *buf, /* What was written? */ ret = -EFAULT; - if (copy_from_user(kbuf, buf, count)) + if (copy_from_user_nul(kbuf, buf, count)) goto out; - kbuf[count] = '\0'; pos = kbuf; /* What is being requested? */ -- 2.36.1
