From f12dd75959b0138f94da8ddcf43f2f3cf277216d Mon Sep 17 00:00:00 2001 From: Martin KaFai Lau Date: Tue, 11 Jun 2019 14:45:57 -0700 Subject: bpf: net: Set sk_bpf_storage back to NULL for cloned sk The cloned sk should not carry its parent-listener's sk_bpf_storage. This patch fixes it by setting it back to NULL. Fixes: 6ac99e8f23d4 ("bpf: Introduce bpf sk local storage") Signed-off-by: Martin KaFai Lau Acked-by: Andrii Nakryiko Signed-off-by: Daniel Borkmann --- net/core/sock.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'net/core/sock.c') diff --git a/net/core/sock.c b/net/core/sock.c index 2b3701958486..d90fd04622e5 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1850,6 +1850,9 @@ struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority) goto out; } RCU_INIT_POINTER(newsk->sk_reuseport_cb, NULL); +#ifdef CONFIG_BPF_SYSCALL + RCU_INIT_POINTER(newsk->sk_bpf_storage, NULL); +#endif newsk->sk_err = 0; newsk->sk_err_soft = 0; -- cgit v1.2.3-59-g8ed1b