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bpf: net: Set sk_bpf_storage back to NULL for cloned sk

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The cloned sk should not carry its parent-listener's sk_bpf_storage.
This patch fixes it by setting it back to NULL.

Fixes: 6ac99e8f23 ("bpf: Introduce bpf sk local storage")
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Martin KaFai Lau 2019-06-11 14:45:57 -07:00 committed by Daniel Borkmann
parent da2577fdd0
commit f12dd75959
1 changed files with 3 additions and 0 deletions
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3
net/core/sock.c
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@ -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;