linux-kernel - Re: [PATCH v2] mm/ksm: Fix NULL pointer dereference when KSM zero page is enabled

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Message-ID: <ff540216-7f3e-9841-4896-81907540404d@web.de>
Date:   Tue, 14 Apr 2020 11:17:17 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     Muchun Song <songmuchun@...edance.com>,
        Xiongchun Duan <duanxiongchun@...edance.com>,
        linux-mm@...ck.org
Cc:     linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH v2] mm/ksm: Fix NULL pointer dereference when KSM zero
 page is enabled

> to crash when we access vma->vm_mm(its offset is 0x40) later in

Will another fine-tuning become relevant also for this wording?


> following calltrace is captured in kernel 4.19 with KSM zero page

Can the mentioned Linux version trigger any special software
development concerns?

Will any other tags become helpful in such a case?

Regards,
Markus