net/tls: swap sk_write_space on close
[ Upstream commit 57c722e932cfb82e9820bbaae1b1f7222ea97b52 ] Now that we swap the original proto and clear the ULP pointer on close we have to make sure no callback will try to access the freed state. sk_write_space is not part of sk_prot, remember to swap it. Reported-by: syzbot+dcdc9deefaec44785f32@syzkaller.appspotmail.com Fixes: 95fa145479fb ("bpf: sockmap/tls, close can race with map free") Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -301,6 +301,7 @@ static void tls_sk_proto_close(struct sock *sk, long timeout)
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#else
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{
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#endif
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sk->sk_write_space = ctx->sk_write_space;
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tls_ctx_free(ctx);
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ctx = NULL;
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}
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