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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/auditfilter.c
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@@ -637,7 +637,7 @@ static struct audit_rule_data *audit_krule_to_data(struct audit_krule *krule)
void *bufp;
int i;
data = kmalloc(sizeof(*data) + krule->buflen, GFP_KERNEL);
data = kmalloc(struct_size(data, buf, krule->buflen), GFP_KERNEL);
if (unlikely(!data))
return NULL;
memset(data, 0, sizeof(*data));