linux-kernel - Re: [REPORT] RESERVE_BRK() doesn't work for some cases

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]

Date:   Wed, 8 Jun 2022 19:45:22 -0700
From:   Josh Poimboeuf <jpoimboe@...nel.org>
To:     Byungchul Park <byungchul.park@....com>
Cc:     peterz@...radead.org, jpoimboe@...hat.com, bp@...e.de,
        linux-kernel@...r.kernel.org, kernel-team@....com
Subject: Re: [REPORT] RESERVE_BRK() doesn't work for some cases

On Thu, Jun 09, 2022 at 10:30:51AM +0900, Byungchul Park wrote:
> commit a1e2c031ec3 "x86/mm: Simplify RESERVE_BRK()" changed the behavior
> by compiler and assembler.
> 
> Some strings obtained just by __stringify() cannot be interpreted by
> some assemblers.
> 
> It might need to allow to put input for size within inline asm.

Yes, this was reported already.  I'm posting a v2 fix tomorrow.

-- 
Josh