linux-kernel - Re: [RFC] fs/kcore: change copy_to_user to copy_in

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 20 Aug 2015 18:45:08 +0800
From:	yalin wang <yalin.wang2010@...il.com>
To:	Frans Klaver <fransklaver@...il.com>
Cc:	bp@...e.de, Ingo Molnar <mingo@...nel.org>, dave@...1.net,
	bhe@...hat.com, Andrew Morton <akpm@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [RFC] fs/kcore: change copy_to_user to copy_in_user


> On Aug 20, 2015, at 17:58, Frans Klaver <fransklaver@...il.com> wrote:
> 
> On Thu, Aug 20, 2015 at 10:59 AM, yalin wang <yalin.wang2010@...il.com> wrote:
>> the copy_to_user() here expect can fix the fault on both kernel and
>> user address, this is not true on other platforms except x86,
>> change to user copy_in_user() so that can detect the page fault,
>> work as expected.
> 
> Could you rephrase this into multiple sentences in comprehensible
> English? What is the expected behavior, what is the unexpected
> behavior and what can people do to trigger it?
> 
ok, i will send a V2 patch.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/