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Groups > linux.kernel > #1554788

Re: [PATCH] perf: protect group_leader from races that cause ctx

From Kees Cook <keescook@chromium.org>
Newsgroups linux.kernel
Subject Re: [PATCH] perf: protect group_leader from races that cause ctx
Date 2017-01-10 00:20 +0100
Message-ID <sXRom-1WC-21@gated-at.bofh.it> (permalink)
References <sWpua-1ii-13@gated-at.bofh.it> <sWzaa-8fH-19@gated-at.bofh.it> <sWCB3-2sU-13@gated-at.bofh.it> <sWJsS-75B-27@gated-at.bofh.it> <sX22t-2J8-5@gated-at.bofh.it>
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On Sat, Jan 7, 2017 at 8:29 AM, John Dias <joaodias@google.com> wrote:
>> John, are you able to test this solution? IIUC, you've got a reproducer handy?
>
> Yes, I tested against two reproducers. Both were fixed by this solution.

Great! Thanks for testing this.

> Thanks to Kees and Peter for your patience on this.

Peter, can you push your patch into the tree with the adjusted
Reported-by and Cc: stable (and maybe add Tested-by from John)?

Thanks again for working on it!

-Kees

-- 
Kees Cook
Nexus Security

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Thread

[PATCH] perf: protect group_leader from races that cause ctx Kees Cook <keescook@chromium.org> - 2017-01-06 00:20 +0100
  Re: [PATCH] perf: protect group_leader from races that cause ctx Peter Zijlstra <peterz@infradead.org> - 2017-01-06 10:40 +0100
    Re: [PATCH] perf: protect group_leader from races that cause ctx Peter Zijlstra <peterz@infradead.org> - 2017-01-06 14:20 +0100
      Re: [PATCH] perf: protect group_leader from races that cause ctx Kees Cook <keescook@chromium.org> - 2017-01-06 21:40 +0100
        Re: [PATCH] perf: protect group_leader from races that cause ctx John Dias <joaodias@google.com> - 2017-01-07 17:30 +0100
          Re: [PATCH] perf: protect group_leader from races that cause ctx Kees Cook <keescook@chromium.org> - 2017-01-10 00:20 +0100
        Re: [PATCH] perf: protect group_leader from races that cause ctx Peter Zijlstra <peterz@infradead.org> - 2017-01-10 09:50 +0100
        Re: [PATCH] perf: protect group_leader from races that cause ctx Ingo Molnar <mingo@kernel.org> - 2017-01-10 11:20 +0100
          Re: [PATCH] perf: protect group_leader from races that cause ctx Kees Cook <keescook@chromium.org> - 2017-01-11 01:00 +0100
      [tip:perf/urgent] perf/core: Fix concurrent sys_perf_event_open()  vs. 'move_group' race tip-bot for Peter Zijlstra <tipbot@zytor.com> - 2017-01-14 13:30 +0100

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