linux-kernel - Re: lsipc(1) triggers general protection fault in sysvipc_shm_proc

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Message-ID: <CAGXu5j+BoPVscCeMRxq6fyVdOVsnVmJvTHqgkW0x5C8D=32VRA@mail.gmail.com>
Date:   Sun, 30 Jul 2017 13:36:51 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Dominik Brodowski <linux@...inikbrodowski.net>
Cc:     Manfred Spraul <manfred@...orfullife.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: lsipc(1) triggers general protection fault in sysvipc_shm_proc_show()
 on v4.13-rc2+

On Sun, Jul 30, 2017 at 1:16 PM, Dominik Brodowski
<linux@...inikbrodowski.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