Commit fd3e646c authored Jan 22, 2015 by Daniel Borkmann Committed by David S. Miller Jan 26, 2015

net: act_bpf: fix size mismatch on filter preparation

Similarly as in cls_bpf, also this code needs to reject mismatches.

Reference: http://article.gmane.org/gmane.linux.network/347406


Fixes: d23b8ad8 ("tc: add BPF based action")
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 1c1bc6bd

net/sched/act_bpf.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -122,6 +122,9 @@ static int tcf_bpf_init(struct net net, struct nlattr nla,
		return -EINVAL;

		bpf_size = bpf_num_ops * sizeof(*bpf_ops);
		if (bpf_size != nla_len(tb[TCA_ACT_BPF_OPS]))
		return -EINVAL;

		bpf_ops = kzalloc(bpf_size, GFP_KERNEL);
		if (!bpf_ops)
		return -ENOMEM;