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Message-ID: <20180226012631.qff25qjngubxy4ia@cisco>
Date: Sun, 25 Feb 2018 18:26:31 -0700
From: Tycho Andersen <tycho@...ho.ws>
To: "Tobin C. Harding" <me@...in.cc>
Cc: Kernel Hardening <kernel-hardening@...ts.openwall.com>,
LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/4] leaking_addresses: simplify path skipping
Hi Tobin,
On Mon, Feb 19, 2018 at 01:50:47PM +1100, Tobin C. Harding wrote:
> -# Do not parse these files under any subdirectory.
> -my @skip_parse_files_any = ('0',
> - '1',
> - '2',
> - 'pagemap',
> - 'events',
> - 'access',
> - 'registers',
> - 'snapshot_raw',
> - 'trace_pipe_raw',
> - 'ptmx',
> - 'trace_pipe');
It might be worth adding 'syscall' here; the pointers listed are user
pointers, and negative syscall args will show up like kernel pointers,
e.g. I get this output, which is spurious:
/proc/31808/syscall: 0 0x3 0x55b107a38180 0x2000 0xffffffffffffffb0 0x55b107a302d0 0x55b107a38180 0x7fffa313b8e8 0x7ff098560d11
Cheers,
Tycho
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