linux-kernel - Re: [RFC v4 14/22] clockevents: clockevents_program

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: <alpine.DEB.2.20.1608251519080.5714@nanos>
Date:   Thu, 25 Aug 2016 15:20:59 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Nicolai Stange <nicstange@...il.com>
cc:     John Stultz <john.stultz@...aro.org>, linux-kernel@...r.kernel.org
Subject: Re: [RFC v4 14/22] clockevents: clockevents_program_event(): turn
 clc into unsigned long

On Tue, 23 Aug 2016, Nicolai Stange wrote:

> Right now, being of type unsigned long long, the clc local variable in
> clockevents_program_event() is unnecessarily wide as it gets cast to
> unsigned long anyway.

Congrats! You just broke 32bit systems. When delta is sufficiently large then
the mult overflows....
 
Thanks,

	tglx