linux-kernel - Re: [PATCH] mm/mremap: Add comment explaining the untagging behaviour of mremap()

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: <CAHk-=wgymj+aXjTwjRkhA0j0u7t1-74fLUmp1pW7Jntf=Q+eOw@mail.gmail.com>
Date:   Wed, 25 Mar 2020 10:33:39 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Will Deacon <will@...nel.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Android Kernel Team <kernel-team@...roid.com>,
        Catalin Marinas <catalin.marinas@....com>
Subject: Re: [PATCH] mm/mremap: Add comment explaining the untagging behaviour
 of mremap()

On Wed, Mar 25, 2020 at 4:13 AM Will Deacon <will@...nel.org> wrote:
>
> Add a comment justifying the untagging behaviour in mremap().

Ack. This makes that odd "do it on one address, not the other" thing clear.

Otherwise I bet somebody would come along in a few years and go "Oh,
people missed that other case".

             Linus