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Re: net/packet: use-after-free in packet_rcv_fanout

From Eric Dumazet <eric.dumazet@gmail.com>
Newsgroups linux.kernel
Subject Re: net/packet: use-after-free in packet_rcv_fanout
Date 2017-02-10 19:30 +0100
Message-ID <t9o7g-73R-23@gated-at.bofh.it> (permalink)
References (2 earlier) <t99UB-6os-3@gated-at.bofh.it> <t9a4i-6rR-9@gated-at.bofh.it> <t9nEd-6Co-9@gated-at.bofh.it> <t9nNT-6VN-19@gated-at.bofh.it> <t9nXA-6ZO-17@gated-at.bofh.it>
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On Fri, 2017-02-10 at 10:02 -0800, Cong Wang wrote:

> I don't have to give a 100% correct patch to prove my explanation
> of the crash. At least it makes more sense than yours...

I will submit it regardless of what you think.

It solves _another_ issue, one of of 10 in af_packet.c

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Thread

net/packet: use-after-free in packet_rcv_fanout Dmitry Vyukov <dvyukov@google.com> - 2017-02-09 14:20 +0100
  Re: net/packet: use-after-free in packet_rcv_fanout Sowmini Varadhan <sowmini.varadhan@oracle.com> - 2017-02-09 16:20 +0100
    Re: net/packet: use-after-free in packet_rcv_fanout Eric Dumazet <edumazet@google.com> - 2017-02-09 16:20 +0100
  Re: net/packet: use-after-free in packet_rcv_fanout Cong Wang <xiyou.wangcong@gmail.com> - 2017-02-10 02:30 +0100
    Re: net/packet: use-after-free in packet_rcv_fanout Eric Dumazet <eric.dumazet@gmail.com> - 2017-02-10 04:20 +0100
      Re: net/packet: use-after-free in packet_rcv_fanout Eric Dumazet <eric.dumazet@gmail.com> - 2017-02-10 04:30 +0100
        Re: net/packet: use-after-free in packet_rcv_fanout Cong Wang <xiyou.wangcong@gmail.com> - 2017-02-10 19:00 +0100
          Re: net/packet: use-after-free in packet_rcv_fanout Eric Dumazet <eric.dumazet@gmail.com> - 2017-02-10 19:10 +0100
            Re: net/packet: use-after-free in packet_rcv_fanout Cong Wang <xiyou.wangcong@gmail.com> - 2017-02-10 19:20 +0100
              Re: net/packet: use-after-free in packet_rcv_fanout Eric Dumazet <eric.dumazet@gmail.com> - 2017-02-10 19:30 +0100
            Re: net/packet: use-after-free in packet_rcv_fanout Eric Dumazet <eric.dumazet@gmail.com> - 2017-02-10 19:20 +0100
              Re: net/packet: use-after-free in packet_rcv_fanout Cong Wang <xiyou.wangcong@gmail.com> - 2017-02-10 19:50 +0100
      Re: net/packet: use-after-free in packet_rcv_fanout Sowmini Varadhan <sowmini.varadhan@oracle.com> - 2017-02-10 04:40 +0100
        Re: net/packet: use-after-free in packet_rcv_fanout Eric Dumazet <edumazet@google.com> - 2017-02-10 05:30 +0100
        Re: net/packet: use-after-free in packet_rcv_fanout Cong Wang <xiyou.wangcong@gmail.com> - 2017-02-10 19:10 +0100
          Re: net/packet: use-after-free in packet_rcv_fanout Sowmini Varadhan <sowmini.varadhan@oracle.com> - 2017-02-10 20:20 +0100

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