linux-kernel - Re: [PATCH] proc: fix map

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: <20190414155848.GA23418@avx2>
Date:   Sun, 14 Apr 2019 18:58:48 +0300
From:   Alexey Dobriyan <adobriyan@...il.com>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     akpm@...ux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] proc: fix map_files test on F29

On Sun, Apr 14, 2019 at 08:24:53AM -0700, Randy Dunlap wrote:
> On 4/14/19 5:36 AM, Alexey Dobriyan wrote:
> > F29 bans mapping first 64KB even for root making test fail.
> 
> so there is an F29-only patch that prevents that?
> something that is not in mainline?

Ehh, no. F29 ships stable kernels actually.

Test assumes mmap(0, MAP_FIXED) succeeds as root. F29 uses SELinux
to ban that.