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, | |||
271 | int hh_len; | 271 | int hh_len; |
272 | struct iphdr *iph; | 272 | struct iphdr *iph; |
273 | struct sk_buff *skb; | 273 | struct sk_buff *skb; |
274 | unsigned int iphlen; | ||
274 | int err; | 275 | int err; |
275 | 276 | ||
276 | if (length > rt->u.dst.dev->mtu) { | 277 | if (length > rt->u.dst.dev->mtu) { |
@@ -304,7 +305,8 @@ static int raw_send_hdrinc(struct sock *sk, void *from, size_t length, | |||
304 | goto error_fault; | 305 | goto error_fault; |
305 | 306 | ||
306 | /* We don't modify invalid header */ | 307 | /* We don't modify invalid header */ |
307 | if (length >= sizeof(*iph) && iph->ihl * 4U <= length) { | 308 | iphlen = iph->ihl * 4; |
309 | if (iphlen >= sizeof(*iph) && iphlen <= length) { | ||
308 | if (!iph->saddr) | 310 | if (!iph->saddr) |
309 | iph->saddr = rt->rt_src; | 311 | iph->saddr = rt->rt_src; |
310 | iph->check = 0; | 312 | iph->check = 0; |