This is a note to let you know that I've just added the patch titled
net: openvswitch: datapath: fix data type in queue_gso_packets
to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: net-openvswitch-datapath-fix-data-type-in-queue_gso_packets.patch and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From foo@baz Thu Dec 14 11:45:40 CET 2017
From: "Gustavo A. R. Silva" garsilva@embeddedor.com Date: Sat, 25 Nov 2017 13:14:40 -0600 Subject: net: openvswitch: datapath: fix data type in queue_gso_packets
From: "Gustavo A. R. Silva" garsilva@embeddedor.com
[ Upstream commit 2734166e89639c973c6e125ac8bcfc2d9db72b70 ]
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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/openvswitch/datapath.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/openvswitch/datapath.c +++ b/net/openvswitch/datapath.c @@ -335,7 +335,7 @@ static int queue_gso_packets(struct data 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;
Patches currently in stable-queue which might be from garsilva@embeddedor.com are
queue-4.14/net-openvswitch-datapath-fix-data-type-in-queue_gso_packets.patch