linux-kernel - Re: [PATCH] mm/swap: fix swap_info_struct race between swapoff and get_swap

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]

Message-ID: <ZCmFExoOsho9pt+Q@debian.me>
Date:   Sun, 2 Apr 2023 20:37:23 +0700
From:   Bagas Sanjaya <bagasdotme@...il.com>
To:     Rongwei Wang <rongwei.wang@...ux.alibaba.com>,
        akpm@...ux-foundation.org
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        linux-stable@...r.kernel.org
Subject: Re: [PATCH] mm/swap: fix swap_info_struct race between swapoff and
 get_swap_pages()

On Sun, Apr 02, 2023 at 06:19:20AM +0800, Rongwei Wang wrote:
> Without this modification, a core will wait (mostly)
"Currently, a core will ..."

> But, a worse consequence, panic also can be caused by
"However, in the worst case, ..."

> In this patch, we lock p->lock before calling
"Lock p->lock before calling ..."

> We also find this problem exists in stable 5.10.

So, you claim that 5.15.y and 6.1.y aren't affected, right?

Also, Cc: stable@...r.kernel.org on the SoB area (as pointed by kernel
test robot [1].

Thanks.

[1]: https://lore.kernel.org/stable/ZCiuGEkyk%2F1Afisk@ec83ac1404bb/
 
-- 
An old man doll... just what I always wanted! - Clara

Download attachment "signature.asc" of type "application/pgp-signature" (229 bytes)