unimore/kernel-hacking-2024-linux-steffo
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audit: use struct_size() helper in audit_[send|make]_reply()

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Make use of struct_size() helper instead of an open-coded calculation.

Link: https://github.com/KSPP/linux/issues/160
Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
This commit is contained in:
Xiu Jianfeng 2021-12-17 09:01:51 +08:00 committed by Paul Moore
parent 8f110f5306
commit 30561b51cc
2 changed files with 2 additions and 2 deletions
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2
kernel/audit.c
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@ -1459,7 +1459,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
security_release_secctx(ctx, len); security_release_secctx(ctx, len);
} }
audit_send_reply(skb, seq, AUDIT_SIGNAL_INFO, 0, 0, audit_send_reply(skb, seq, AUDIT_SIGNAL_INFO, 0, 0,
sig_data, sizeof(*sig_data) + len); sig_data, struct_size(sig_data, ctx, len));
kfree(sig_data); kfree(sig_data);
break; break;
case AUDIT_TTY_GET: { case AUDIT_TTY_GET: {

2
kernel/auditfilter.c
View file

@ -1092,7 +1092,7 @@ static void audit_list_rules(int seq, struct sk_buff_head *q)
break; break;
skb = audit_make_reply(seq, AUDIT_LIST_RULES, 0, 1, skb = audit_make_reply(seq, AUDIT_LIST_RULES, 0, 1,
data, data,
sizeof(*data) + data->buflen); struct_size(data, buf, data->buflen));
if (skb) if (skb)
skb_queue_tail(q, skb); skb_queue_tail(q, skb);
kfree(data); kfree(data);