linux-kernel - [PATCH 0/5] refcount_t and various related bits

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

Message-Id: <20170203132558.474916683@infradead.org>
Date:   Fri, 03 Feb 2017 14:25:58 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     elena.reshetova@...el.com, gregkh@...uxfoundation.org,
        keescook@...omium.org, arnd@...db.de, tglx@...utronix.de,
        mingo@...nel.org, h.peter.anvin@...el.com, will.deacon@....com,
        dwindsor@...il.com, dhowells@...hat.com, peterz@...radead.org
Cc:     linux-kernel@...r.kernel.org, kernel-hardening@...ts.openwall.com
Subject: [PATCH 0/5] refcount_t and various related bits

Hi all,

Here is the refcount_t patch and some related bits that I hacked up the past
few days while playing with it in order to make it generate less aweful code
(on x86_64).

I think we can start by merging the refcount_t and kref patches, the rest can
come later if so desired. New here is the Kconfig knob to turn warnings
off -- it significantly reduces the generated code while still avoiding
the UAF.

I added David Howells because both he and hpa have suggested something like
try_cmpxchg() in the past.