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authorGustavo A. R. Silva <garsilva@embeddedor.com>2017-11-25 22:14:40 +0300
committerDavid S. Miller <davem@davemloft.net>2017-11-26 20:15:33 +0300
commit2734166e89639c973c6e125ac8bcfc2d9db72b70 (patch)
tree8a45c79aa484e895deb2e413981f08c7b277178a /net/openvswitch
parent7bbefcfac1936c8d9082a828b09f42a3839cb06e (diff)
downloadlinux-2734166e89639c973c6e125ac8bcfc2d9db72b70.tar.xz
net: openvswitch: datapath: fix data type in queue_gso_packets
gso_type is being used in binary AND operations together with SKB_GSO_UDP. The issue is that variable gso_type is of type unsigned short and SKB_GSO_UDP expands to more than 16 bits: SKB_GSO_UDP = 1 << 16 this makes any binary AND operation between gso_type and SKB_GSO_UDP to be always zero, hence making some code unreachable and likely causing undesired behavior. Fix this by changing the data type of variable gso_type to unsigned int. Addresses-Coverity-ID: 1462223 Fixes: 0c19f846d582 ("net: accept UFO datagrams from tuntap and packet") Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/openvswitch')
-rw-r--r--net/openvswitch/datapath.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 99cfafc2a139..ef38e5aecd28 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -308,7 +308,7 @@ static int queue_gso_packets(struct datapath *dp, struct sk_buff *skb,
const struct dp_upcall_info *upcall_info,
uint32_t cutlen)
{
- unsigned short gso_type = skb_shinfo(skb)->gso_type;
+ unsigned int gso_type = skb_shinfo(skb)->gso_type;
struct sw_flow_key later_key;
struct sk_buff *segs, *nskb;
int err;