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authorJiri Kosina <jkosina@suse.cz>2019-03-05 15:24:43 +0100
committerJiri Kosina <jkosina@suse.cz>2019-03-05 15:24:43 +0100
commit2c2e5bb97544198a62e4edbf6aca5dd201979564 (patch)
treeffb927ea311d86aeee3a0ef561d6218280c038cb /net/ipv4/ip_sockglue.c
parent9b6872a123862cecd19a958f08eb9848b6a4240d (diff)
parent6311d329e12a358a9813d2e929d26fbc5a4c73c2 (diff)
downloadtalos-op-linux-2c2e5bb97544198a62e4edbf6aca5dd201979564.tar.gz
talos-op-linux-2c2e5bb97544198a62e4edbf6aca5dd201979564.zip
Merge branch 'for-5.1/hid-asus' into for-linus
Asus Transbook T100CHI and T90CHI support from NOGUCHI Hiroshi
Diffstat (limited to 'net/ipv4/ip_sockglue.c')
-rw-r--r--net/ipv4/ip_sockglue.c12
1 files changed, 5 insertions, 7 deletions
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index fffcc130900e..82f341e84fae 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -148,19 +148,17 @@ static void ip_cmsg_recv_security(struct msghdr *msg, struct sk_buff *skb)
static void ip_cmsg_recv_dstaddr(struct msghdr *msg, struct sk_buff *skb)
{
+ __be16 _ports[2], *ports;
struct sockaddr_in sin;
- __be16 *ports;
- int end;
-
- end = skb_transport_offset(skb) + 4;
- if (end > 0 && !pskb_may_pull(skb, end))
- return;
/* All current transport protocols have the port numbers in the
* first four bytes of the transport header and this function is
* written with this assumption in mind.
*/
- ports = (__be16 *)skb_transport_header(skb);
+ ports = skb_header_pointer(skb, skb_transport_offset(skb),
+ sizeof(_ports), &_ports);
+ if (!ports)
+ return;
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = ip_hdr(skb)->daddr;
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