linux-kernel - Re: [PATCH] mm: swap: check for xa_zero

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Message-ID: <25f6b30a-75fd-429c-ad3a-29cfc3a677a8@quicinc.com>
Date: Mon, 11 Aug 2025 21:59:49 +0530
From: Charan Teja Kalla <quic_charante@...cinc.com>
To: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
CC: <akpm@...ux-foundation.org>, <shikemeng@...weicloud.com>,
        <kasong@...cent.com>, <nphamcs@...il.com>, <bhe@...hat.com>,
        <baohua@...nel.org>, <chrisl@...nel.org>, <david@...hat.com>,
        <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm: swap: check for xa_zero_entry() on vma in swapoff
 path



On 8/11/2025 5:37 PM, Lorenzo Stoakes wrote:
> Any syzbot link or further information as to where this bug was found? Was this
> on your system?
> 
> Has this happened in reality or due to fault injection?
Sorry, missed to mention this information on the commit message.

Yes this is really reported on the 6.12 LTS kernel, while running the
tests on the device farm, though, reproduction rate is very low.

Thanks
Charan