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Re: lsipc(1) triggers general protection fault in sysvipc_shm_proc_show() on v4.13-rc2+

From Kees Cook <keescook@chromium.org>
Newsgroups linux.kernel
Subject Re: lsipc(1) triggers general protection fault in sysvipc_shm_proc_show() on v4.13-rc2+
Date 2017-07-30 22:40 +0200
Message-ID <u93ah-57L-5@gated-at.bofh.it> (permalink)
References <u8Tuh-7rh-7@gated-at.bofh.it> <u8Zgm-2EJ-17@gated-at.bofh.it> <u90vL-3ne-5@gated-at.bofh.it> <u92QV-50u-5@gated-at.bofh.it>
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On Sun, Jul 30, 2017 at 1:16 PM, Dominik Brodowski
<linux@dominikbrodowski.net> wrote:
> I've bisected it to between v4.13-rc1 and 96080f697786 so far, ~7 more
> kernels/reboots to go. That leaves no code changes to ipc/, but some
> randstruct changes ( I have set CONFIG_GCC_PLUGIN_RANDSTRUCT=y ) which
> touch some ipc-related code.

Excellent, thanks; I bisected this as well. There was a missing
container_of() in the proc handler. I've sent a patch for this now.
Thanks for the report!

-Kees

-- 
Kees Cook
Pixel Security

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Thread

lsipc(1) triggers general protection fault in  sysvipc_shm_proc_show() on v4.13-rc2+ Dominik Brodowski <linux@dominikbrodowski.net> - 2017-07-30 12:20 +0200
  Re: lsipc(1) triggers general protection fault in sysvipc_shm_proc_show()  on v4.13-rc2+ Kees Cook <keescook@chromium.org> - 2017-07-30 18:30 +0200
    Re: lsipc(1) triggers general protection fault in sysvipc_shm_proc_show()  on v4.13-rc2+ Kees Cook <keescook@chromium.org> - 2017-07-30 19:50 +0200
      Re: lsipc(1) triggers general protection fault in  sysvipc_shm_proc_show() on v4.13-rc2+ Dominik Brodowski <linux@dominikbrodowski.net> - 2017-07-30 22:20 +0200
        Re: lsipc(1) triggers general protection fault in sysvipc_shm_proc_show()  on v4.13-rc2+ Kees Cook <keescook@chromium.org> - 2017-07-30 22:40 +0200
          Re: lsipc(1) triggers general protection fault in  sysvipc_shm_proc_show() on v4.13-rc2+ Dominik Brodowski <linux@dominikbrodowski.net> - 2017-07-30 23:10 +0200

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