diff options
| -rw-r--r-- | net/ipv4/raw.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c index 66b42f547bf9..e7050f8eabeb 100644 --- a/net/ipv4/raw.c +++ b/net/ipv4/raw.c @@ -271,6 +271,7 @@ static int raw_send_hdrinc(struct sock *sk, void *from, size_t length, int hh_len; struct iphdr *iph; struct sk_buff *skb; + unsigned int iphlen; int err; if (length > rt->u.dst.dev->mtu) { @@ -304,7 +305,8 @@ static int raw_send_hdrinc(struct sock *sk, void *from, size_t length, goto error_fault; /* We don't modify invalid header */ - if (length >= sizeof(*iph) && iph->ihl * 4U <= length) { + iphlen = iph->ihl * 4; + if (iphlen >= sizeof(*iph) && iphlen <= length) { if (!iph->saddr) iph->saddr = rt->rt_src; iph->check = 0; |