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] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 8 Mar 2023 17:55:52 -0800
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Peng Zhang <zhangpeng.00@...edance.com>
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()

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.