From e551c32d57c88923f99f8f010e89ca7ed0735e83 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 28 Oct 2016 13:40:24 -0700 Subject: [PATCH] net: clear sk_err_soft in sk_clone_lock() At accept() time, it is possible the parent has a non zero sk_err_soft, leftover from a prior error. Make sure we do not leave this value in the child, as it makes future getsockopt(SO_ERROR) calls quite unreliable. Signed-off-by: Eric Dumazet Acked-by: Soheil Hassas Yeganeh Signed-off-by: David S. Miller --- net/core/sock.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/core/sock.c b/net/core/sock.c index c73e28fc9c2a..df171acfe232 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1543,6 +1543,7 @@ struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority) RCU_INIT_POINTER(newsk->sk_reuseport_cb, NULL); newsk->sk_err = 0; + newsk->sk_err_soft = 0; newsk->sk_priority = 0; newsk->sk_incoming_cpu = raw_smp_processor_id(); atomic64_set(&newsk->sk_cookie, 0);