linux-kernel - Re: [PATCH V5] mm: fix use-after free of page

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Message-ID: <699a1ac8-75a4-c3ab-def9-3740c6a2fdb2@quicinc.com>
Date:   Tue, 8 Nov 2022 10:51:00 +0530
From:   Charan Teja Kalla <quic_charante@...cinc.com>
To:     Vlastimil Babka <vbabka@...e.cz>, <akpm@...ux-foundation.org>,
        <mhocko@...e.com>, <david@...hat.com>, <pasha.tatashin@...een.com>,
        <shakeelb@...gle.com>, <sieberf@...zon.com>, <sjpark@...zon.de>,
        <william.kucharski@...cle.com>, <willy@...radead.org>,
        <quic_pkondeti@...cinc.com>, <minchan@...gle.com>
CC:     <linux-kernel@...r.kernel.org>, <linux-mm@...ck.org>
Subject: Re: [PATCH V5] mm: fix use-after free of page_ext after race with
 memory-offline



On 11/7/2022 9:11 PM, Vlastimil Babka wrote:
> Hi, looks like this added a new warning to a previously clean "make W=1 mm/"
> build:
> mm/page_ext.c:178: warning: Function parameter or member 'page_ext' not
> described in 'page_ext_put'
> 
> Can you fixup please?
Thanks Vlastimil for reporting this. Raised changes
@https://lore.kernel.org/all/1667884582-2465-1-git-send-email-quic_charante@quicinc.com/

Thanks,
Charan