linux-kernel - Re: [PATCH] mm: add pte_present() check on existing hugetlb

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] [day] [month] [year] [list]

Date:	Mon, 03 Mar 2014 16:38:41 -0500
From:	Sasha Levin <sasha.levin@...cle.com>
To:	Naoya Horiguchi <n-horiguchi@...jp.nec.com>,
	Andrew Morton <akpm@...ux-foundation.org>
CC:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Rik van Riel <riel@...hat.com>
Subject: Re: [PATCH] mm: add pte_present() check on existing hugetlb_entry
 callbacks

On 03/03/2014 03:06 PM, Sasha Levin wrote:
> On 03/03/2014 12:02 AM, Naoya Horiguchi wrote:
>> Hi Sasha,
>>
>>> >I can confirm that with this patch the lockdep issue is gone. However, the NULL deref in
>>> >walk_pte_range() and the BUG at mm/hugemem.c:3580 still appear.
>> I spotted the cause of this problem.
>> Could you try testing if this patch fixes it?
>
> I'm seeing a different failure with this patch:

And the NULL deref still happens.


Thanks,
Sasha
--
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/