diff options
Diffstat (limited to 'net/core/filter.c')
| -rw-r--r-- | net/core/filter.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/net/core/filter.c b/net/core/filter.c index bbe0cf415105..ce2a19da8aa4 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -92,8 +92,13 @@ int sk_filter_trim_cap(struct sock *sk, struct sk_buff *skb, unsigned int cap) rcu_read_lock(); filter = rcu_dereference(sk->sk_filter); if (filter) { - unsigned int pkt_len = bpf_prog_run_save_cb(filter->prog, skb); + struct sock *save_sk = skb->sk; + unsigned int pkt_len; + + skb->sk = sk; + pkt_len = bpf_prog_run_save_cb(filter->prog, skb); err = pkt_len ? pskb_trim(skb, max(cap, pkt_len)) : -EPERM; + skb->sk = save_sk; } rcu_read_unlock(); |