Re: [PATCH v3] fs/proc, core/debug: Don't expose absolute kernel addresses via wchan

From	Andrey Ryabinin <ryabinin.a.a@gmail.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH v3] fs/proc, core/debug: Don't expose absolute kernel addresses via wchan
Date	2015-10-01 12:50 +0200
Message-ID	<qeJB0-1BQ-7@gated-at.bofh.it> (permalink)
References	(6 earlier) <qeGWu-5Xc-21@gated-at.bofh.it> <qeHSy-7yF-5@gated-at.bofh.it> <qeIlA-8lU-13@gated-at.bofh.it> <qeJ7Y-13Z-11@gated-at.bofh.it> <qeJrk-1qD-19@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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2015-10-01 13:39 GMT+03:00 Ingo Molnar <mingo@kernel.org>:
>
> There's another problem as well: your change loses the PTRACE_MODE_READ permission
> check.


I guess, you should fix your patch than, because it removed this check
likewise...


>
> But ... I think I like it open coded, which is good precisely because it will stay
> invariant even if we change details in the %ps/etc. debug output.
>

Fair enough.

> Thanks,
>
>         Ingo
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Thread

[PATCH] arch/x86: fix out-of-bounds in get_wchan() Dmitry Vyukov <dvyukov@google.com> - 2015-09-28 11:10 +0200
  Re: [PATCH] arch/x86: fix out-of-bounds in get_wchan() Borislav Petkov <bp@alien8.de> - 2015-09-28 11:40 +0200
    Re: [PATCH] arch/x86: fix out-of-bounds in get_wchan() Dmitry Vyukov <dvyukov@google.com> - 2015-09-28 11:50 +0200
      Re: [PATCH] arch/x86: fix out-of-bounds in get_wchan() Borislav Petkov <bp@alien8.de> - 2015-09-28 12:30 +0200
        Re: [PATCH] arch/x86: fix out-of-bounds in get_wchan() Dmitry Vyukov <dvyukov@google.com> - 2015-09-28 12:40 +0200
          Re: [PATCH] arch/x86: fix out-of-bounds in get_wchan() Borislav Petkov <bp@alien8.de> - 2015-09-28 13:00 +0200
    Re: [PATCH] arch/x86: fix out-of-bounds in get_wchan() Dmitry Vyukov <dvyukov@google.com> - 2015-09-28 12:00 +0200
      Re: [PATCH] arch/x86: fix out-of-bounds in get_wchan() Borislav Petkov <bp@alien8.de> - 2015-09-28 12:40 +0200
  Re: [PATCH] arch/x86: fix out-of-bounds in get_wchan() Andrey Ryabinin <ryabinin.a.a@gmail.com> - 2015-09-28 17:50 +0200
    Re: [PATCH] arch/x86: fix out-of-bounds in get_wchan() Dmitry Vyukov <dvyukov@google.com> - 2015-09-28 18:10 +0200
      Re: [PATCH] arch/x86: fix out-of-bounds in get_wchan() Thomas Gleixner <tglx@linutronix.de> - 2015-09-28 18:40 +0200
        Re: [PATCH] arch/x86: fix out-of-bounds in get_wchan() Andy Lutomirski <luto@amacapital.net> - 2015-09-29 20:20 +0200
          Re: [PATCH] arch/x86: fix out-of-bounds in get_wchan() Andy Lutomirski <luto@amacapital.net> - 2015-09-29 20:40 +0200
            Re: [PATCH] arch/x86: fix out-of-bounds in get_wchan() Borislav Petkov <bp@alien8.de> - 2015-09-29 20:50 +0200
          [PATCH] fs/proc: Don't expose absolute kernel addresses via wchan Ingo Molnar <mingo@kernel.org> - 2015-09-30 09:20 +0200
            Re: [PATCH] fs/proc: Don't expose absolute kernel addresses via  wchan Thomas Gleixner <tglx@linutronix.de> - 2015-09-30 09:40 +0200
              [PATCH v2] fs/proc: Don't expose absolute kernel addresses via wchan Ingo Molnar <mingo@kernel.org> - 2015-09-30 16:00 +0200
                Re: [PATCH v2] fs/proc: Don't expose absolute kernel addresses via  wchan Thomas Gleixner <tglx@linutronix.de> - 2015-09-30 22:40 +0200
                Re: [PATCH v2] fs/proc: Don't expose absolute kernel addresses via wchan Kees Cook <keescook@chromium.org> - 2015-09-30 23:30 +0200
                Re: [PATCH v2] fs/proc: Don't expose absolute kernel addresses via  wchan Thomas Gleixner <tglx@linutronix.de> - 2015-09-30 23:40 +0200
                [PATCH v3] fs/proc, core/debug: Don't expose absolute kernel  addresses via wchan Ingo Molnar <mingo@kernel.org> - 2015-10-01 10:00 +0200
                Re: [PATCH v3] fs/proc, core/debug: Don't expose absolute kernel  addresses via wchan Andrey Ryabinin <ryabinin.a.a@gmail.com> - 2015-10-01 11:00 +0200
                Re: [PATCH v3] fs/proc, core/debug: Don't expose absolute kernel  addresses via wchan Ingo Molnar <mingo@kernel.org> - 2015-10-01 11:30 +0200
                Re: [PATCH v3] fs/proc, core/debug: Don't expose absolute kernel  addresses via wchan Andrey Ryabinin <ryabinin.a.a@gmail.com> - 2015-10-01 12:20 +0200
                Re: [PATCH v3] fs/proc, core/debug: Don't expose absolute kernel  addresses via wchan Ingo Molnar <mingo@kernel.org> - 2015-10-01 12:40 +0200
                Re: [PATCH v3] fs/proc, core/debug: Don't expose absolute kernel  addresses via wchan Andrey Ryabinin <ryabinin.a.a@gmail.com> - 2015-10-01 12:50 +0200
                [PATCH v5] fs/proc, core/debug: Don't expose absolute kernel  addresses via wchan Ingo Molnar <mingo@kernel.org> - 2015-10-01 13:00 +0200
                [PATCH v4] fs/proc, core/debug: Don't expose absolute kernel  addresses via wchan Ingo Molnar <mingo@kernel.org> - 2015-10-01 11:40 +0200
                [tip:core/debug] fs/proc, core/debug: Don'  t expose absolute kernel addresses via wchan tip-bot for Ingo Molnar <tipbot@zytor.com> - 2015-10-01 15:00 +0200
          Re: [PATCH] arch/x86: fix out-of-bounds in get_wchan() Thomas Gleixner <tglx@linutronix.de> - 2015-09-30 10:10 +0200

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