3.14-stable review patch. If anyone has any objections, please let me know.
------------------ From: Pablo Neira Ayuso <[email protected]> commit 9ea2aa8b7dba9e99544c4187cc298face254569f upstream. Make sure there is enough room for the nfnetlink header in the netlink messages that are part of the batch. There is a similar check in netlink_rcv_skb(). Signed-off-by: Pablo Neira Ayuso <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- net/netfilter/nfnetlink.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/net/netfilter/nfnetlink.c +++ b/net/netfilter/nfnetlink.c @@ -265,7 +265,8 @@ replay: nlh = nlmsg_hdr(skb); err = 0; - if (nlh->nlmsg_len < NLMSG_HDRLEN) { + if (nlmsg_len(nlh) < sizeof(struct nfgenmsg) || + skb->len < nlh->nlmsg_len) { err = -EINVAL; goto ack; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
