From: "Tobin C. Harding" <me@tobin.cc>
To: Michael Ellerman <mpe@ellerman.id.au>
Cc: kernel-hardening@lists.openwall.com,
Steven Rostedt <rostedt@goodmis.org>,
Tycho Andersen <tycho@tycho.ws>,
Linus Torvalds <torvalds@linux-foundation.org>,
Kees Cook <keescook@chromium.org>,
Andrew Morton <akpm@linux-foundation.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Masahiro Yamada <yamada.masahiro@socionext.com>,
Alexei Starovoitov <ast@kernel.org>,
linux-kernel@vger.kernel.org,
Network Development <netdev@vger.kernel.org>
Subject: Re: [kernel-hardening] [PATCH 0/3] kallsyms: don't leak address
Date: Mon, 18 Dec 2017 20:17:15 +1100 [thread overview]
Message-ID: <20171218091715.GF4627@eros> (raw)
In-Reply-To: <20171218060048.GD4627@eros>
On Mon, Dec 18, 2017 at 05:00:48PM +1100, Tobin C. Harding wrote:
> On Mon, Dec 18, 2017 at 04:31:25PM +1100, Michael Ellerman wrote:
> > "Tobin C. Harding" <me@tobin.cc> writes:
> >
> > > This set plugs a kernel address leak that occurs if kallsyms symbol
> > > look up fails. This set was prompted by a leaking address found using
> > > scripts/leaking_addresses.pl on a PowerPC machine in the wild.
> >
> > Any details on that? I haven't heard about it.
>
> I have an account on a server in USA. I'm not sure how much detail I
> should give on the mailing list in case it is sensitive information. I
> will email you off list. Responding here for the benefit of the list.
Geez I'm a goose. Here is the details with a sanitized address.
/proc/8025/task/8025/stack: [<0000000000000000>] 0xc0000001XXXXXXXX
$ uname -r
4.4.0-79-powerpc64-smp
thanks,
Tobin.
prev parent reply other threads:[~2017-12-18 9:17 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-17 23:53 [PATCH 0/3] kallsyms: don't leak address Tobin C. Harding
2017-12-17 23:53 ` [PATCH 1/3] kallsyms: don't leak address when symbol not found Tobin C. Harding
2017-12-18 9:55 ` Felix Fietkau
2017-12-18 22:41 ` Tobin C. Harding
2017-12-18 23:43 ` Steven Rostedt
2017-12-19 0:24 ` Tobin C. Harding
2017-12-17 23:53 ` [PATCH 2/3] vsprintf: print <no-symbol> if " Tobin C. Harding
2017-12-18 0:04 ` Joe Perches
2017-12-18 1:04 ` Tobin C. Harding
2017-12-17 23:53 ` [PATCH 3/3] trace: print address " Tobin C. Harding
2017-12-18 16:49 ` Steven Rostedt
2017-12-18 21:16 ` Tobin C. Harding
2017-12-18 23:51 ` Steven Rostedt
2017-12-19 0:22 ` Tobin C. Harding
2017-12-19 3:00 ` Tobin C. Harding
2017-12-19 3:02 ` Tobin C. Harding
2017-12-19 3:37 ` Steven Rostedt
2017-12-19 4:20 ` Tobin C. Harding
2017-12-18 22:35 ` Tobin C. Harding
2017-12-19 23:19 ` kbuild test robot
2017-12-19 23:39 ` kbuild test robot
2017-12-18 5:31 ` [kernel-hardening] [PATCH 0/3] kallsyms: don't leak address Michael Ellerman
2017-12-18 6:00 ` Tobin C. Harding
2017-12-18 9:17 ` Tobin C. Harding [this message]
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