Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

ieee802154: lowpan_header_create check must check daddr

Browse source 
[ Upstream commit 40c3ff6d5e0809505a067dd423c110c5658c478c ]

Packet sockets may call dev_header_parse with NULL daddr. Make
lowpan_header_ops.create fail.

Fixes: 87a93e4ece ("ieee802154: change needed headroom/tailroom")
Signed-off-by: Willem de Bruijn <willemb@google.com>
Acked-by: Alexander Aring <aring@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Willem de Bruijn 2018-12-23 12:52:18 -05:00 committed by Greg Kroah-Hartman
parent 42b676c72e
commit 110c877da9
1 changed files with 3 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
net/ieee802154/6lowpan/tx.c
View file

@ -48,6 +48,9 @@ int lowpan_header_create(struct sk_buff *skb, struct net_device *ldev,
const struct ipv6hdr *hdr = ipv6_hdr(skb);
struct neighbour *n;
if (!daddr)
return -EINVAL;
/* TODO:
* if this package isn't ipv6 one, where should it be routed?
*/