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audit: use struct_size() helper in kmalloc()

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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>
This commit is contained in:
Xiu Jianfeng 2021-12-14 19:48:54 +08:00 • committed by Paul Moore
parent fa55b7dcdc
commit bc6e60a4fc
3 changed files with 3 additions and 3 deletions
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2
kernel/audit_tree.c
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@ -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;