Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1592061

Re: net/dccp: use-after-free in dccp_feat_activate_values

From Eric Dumazet <eric.dumazet@gmail.com>
Newsgroups linux.kernel
Subject Re: net/dccp: use-after-free in dccp_feat_activate_values
Date 2017-03-03 16:30 +0100
Message-ID <tgXjB-35T-45@gated-at.bofh.it> (permalink)
References (1 earlier) <taxia-1ll-21@gated-at.bofh.it> <tgWdQ-2m3-1@gated-at.bofh.it> <tgX9T-31z-7@gated-at.bofh.it> <tgX9T-31z-9@gated-at.bofh.it> <tgX9T-31z-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw

On Fri, 2017-03-03 at 16:06 +0100, Dmitry Vyukov wrote:

> Something that compiles is definitely better :)
> Reapplied.

Just to be clear : This is not the proper patch. This only reduces the
race.

bh_lock_sock() does not prevent a user process from owning the socket.

We need another protection, probably RCU based, or another spinlock
protecting the fields needed at SYNACK generation.

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Re: net/dccp: use-after-free in dccp_feat_activate_values Dmitry Vyukov <dvyukov@google.com> - 2017-03-03 15:20 +0100
  Re: net/dccp: use-after-free in dccp_feat_activate_values Dmitry Vyukov <dvyukov@google.com> - 2017-03-03 15:20 +0100
  Re: net/dccp: use-after-free in dccp_feat_activate_values Dmitry Vyukov <dvyukov@google.com> - 2017-03-03 16:20 +0100
    Re: net/dccp: use-after-free in dccp_feat_activate_values Eric Dumazet <edumazet@google.com> - 2017-03-03 16:30 +0100
      Re: net/dccp: use-after-free in dccp_feat_activate_values Eric Dumazet <eric.dumazet@gmail.com> - 2017-03-03 17:10 +0100
        Re: net/dccp: use-after-free in dccp_feat_activate_values Dmitry Vyukov <dvyukov@google.com> - 2017-03-05 14:30 +0100
  Re: net/dccp: use-after-free in dccp_feat_activate_values Eric Dumazet <eric.dumazet@gmail.com> - 2017-03-03 16:30 +0100
    Re: net/dccp: use-after-free in dccp_feat_activate_values Eric Dumazet <eric.dumazet@gmail.com> - 2017-03-03 16:30 +0100
    Re: net/dccp: use-after-free in dccp_feat_activate_values Dmitry Vyukov <dvyukov@google.com> - 2017-03-03 18:00 +0100
  Re: net/dccp: use-after-free in dccp_feat_activate_values Dmitry Vyukov <dvyukov@google.com> - 2017-03-03 16:40 +0100
  Re: net/dccp: use-after-free in dccp_feat_activate_values Eric Dumazet <eric.dumazet@gmail.com> - 2017-03-03 16:50 +0100

csiph-web