From: timur@codeaurora.org (Timur Tabi)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] arm64: fix CONFIG_DEBUG_WX address reporting
Date: Thu, 14 Dec 2017 13:03:42 -0600 [thread overview]
Message-ID: <53e20df7-9b41-31ec-21fe-30786ae7a0a6@codeaurora.org> (raw)
In-Reply-To: <20171213115835.pkt3fyqcbk7lgdeb@lakrids.cambridge.arm.com>
On 12/13/2017 05:58 AM, Mark Rutland wrote:
> Whoops; I think we forgot to apply the VA_START offset in
> ptdump_check_wx(), so we report the address wrong.
>
> Does the below (untested) patch result in a sane-looking report?
[ 10.977304] arm64/mm: Found insecure W+X mapping at address
ffff190621232000/0xffff190621232000
I can reproduce the problem after 2-3 reboots. When it happens, I get a
different pair of addresses, but they all look like these.
I'm not sure what to do next, however.
--
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm
Technologies, Inc. Qualcomm Technologies, Inc. is a member of the
Code Aurora Forum, a Linux Foundation Collaborative Project.
prev parent reply other threads:[~2017-12-14 19:03 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-12 22:57 How to debug "insecure W+X mapping"? Timur Tabi
2017-12-12 23:30 ` Laura Abbott
2017-12-13 11:58 ` [PATCH] arm64: fix CONFIG_DEBUG_WX address reporting (was: Re: How to debug "insecure W+X mapping"?) Mark Rutland
2017-12-14 19:02 ` [PATCH] arm64: fix CONFIG_DEBUG_WX address reporting Laura Abbott
2017-12-14 21:34 ` Timur Tabi
2017-12-14 19:03 ` Timur Tabi [this message]
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