audit: use struct_size() helper in kmalloc()
Make use of struct_size() helper instead of an open-coded calucation.
Link: https://github.com/KSPP/linux/issues/160
Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Paul Moore <paul@paul-moore.com>
diff --git a/kernel/audit_tree.c b/kernel/audit_tree.c
index 72324af..e7315d487 100644
--- a/kernel/audit_tree.c
+++ b/kernel/audit_tree.c
@@ -94,7 +94,7 @@ static struct audit_tree *alloc_tree(const char *s)
{
struct audit_tree *tree;
- tree = kmalloc(sizeof(struct audit_tree) + strlen(s) + 1, GFP_KERNEL);
+ tree = kmalloc(struct_size(tree, pathname, strlen(s) + 1), GFP_KERNEL);
if (tree) {
refcount_set(&tree->count, 1);
tree->goner = 0;