linux-kernel - Re: [PATCH] maple_tree: Fix the error of mas->min/max in mas_skip

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]

Message-ID: <0db9e2b9-e5ed-e817-bd3f-9812fd914c97@bytedance.com>
Date:   Thu, 9 Mar 2023 10:09:07 +0800
From:   Peng Zhang <zhangpeng.00@...edance.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Liam.Howlett@...cle.com, snild@...y.com, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, maple-tree@...ts.infradead.org,
        Stable@...r.kernel.org
Subject: Re: [PATCH] maple_tree: Fix the error of mas->min/max in
 mas_skip_node()


在 2023/3/9 09:55, Andrew Morton 写道:
> On Wed,  8 Mar 2023 00:03:40 +0800 Peng Zhang <zhangpeng.00@...edance.com> wrote:
>
>> The assignment of mas->min and mas->max is wrong. mas->min and mas->max
>> should represent the range of the current node. After mas_ascend()
>> returns, mas-min and mas->max already represent the range of the current
>> node, so we should delete these assignments of mas->min and mas->max.
>>
> Please fully describe the user-visible effects of the flaw, especially
> when proposing a -stable backport.
>
The fixes made by this patch have been included in 
https://lore.kernel.org/lkml/20230307180247.2220303-2-Liam.Howlett@oracle.com/, 
so please don't pay attention.