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Date: Fri, 28 Aug 2020 06:51:40 -0700 (PDT) From: David Miller <davem@...emloft.net> To: zhudi21@...wei.com Cc: kuba@...nel.org, ast@...nel.org, yhs@...com, netdev@...r.kernel.org, rose.chen@...wei.com Subject: Re: [PATCH] netlink: fix a data race in netlink_rcv_wake() From: zhudi <zhudi21@...wei.com> Date: Wed, 26 Aug 2020 20:01:13 +0800 > The data races were reported by KCSAN: > BUG: KCSAN: data-race in netlink_recvmsg / skb_queue_tail ... > Since the write is under sk_receive_queue->lock but the read > is done as lockless. so fix it by using skb_queue_empty_lockless() > instead of skb_queue_empty() for the read in netlink_rcv_wake() > > Signed-off-by: zhudi <zhudi21@...wei.com> Applied, thank you.
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