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authorMartin KaFai Lau <kafai@fb.com>2019-06-11 14:45:57 -0700
committerDaniel Borkmann <daniel@iogearbox.net>2019-06-12 16:38:20 +0200
commitf12dd75959b0138f94da8ddcf43f2f3cf277216d (patch)
treef855d145e55a98bc81e747f916df42bf43577b84 /net
parentda2577fdd0932ea4eefe73903f1130ee366767d2 (diff)
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 <kafai@fb.com> Acked-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'net')
-rw-r--r--net/core/sock.c3
1 files changed, 3 insertions, 0 deletions
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;