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| author | Daniel Borkmann <dborkman@redhat.com> | 2015-01-22 10:58:19 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-01-27 01:08:55 +0100 |
| commit | fd3e646c87ab3f2ba98aa25394581af27cc78dc5 (patch) | |
| tree | 128691c3cc72ec24880bf538eddf81283d8fb0be | |
| parent | net: cls_basic: return from walking on match in basic_get (diff) | |
| download | linux-fd3e646c87ab3f2ba98aa25394581af27cc78dc5.tar.xz linux-fd3e646c87ab3f2ba98aa25394581af27cc78dc5.zip | |
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: d23b8ad8ab23 ("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>
| -rw-r--r-- | net/sched/act_bpf.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/sched/act_bpf.c b/net/sched/act_bpf.c index 1bd257e473a9..82c5d7fc1988 100644 --- a/net/sched/act_bpf.c +++ b/net/sched/act_bpf.c @@ -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; |