linux-kernel - Re: [patch] time: cast ->raw_interval to u64 to avoid shift overflow

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 for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 09 Oct 2012 12:14:03 -0700
From:	John Stultz <johnstul@...ibm.com>
To:	Dan Carpenter <dan.carpenter@...cle.com>
CC:	Thomas Gleixner <tglx@...utronix.de>, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: Re: [patch] time: cast ->raw_interval to u64 to avoid shift overflow

On 10/09/2012 12:18 AM, Dan Carpenter wrote:
> We fixed a bunch of integer overflows in timekeeping code during the 3.6
> cycle.  I did an audit based on that and found this potential overflow.
>
> Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

Yep. Looks like this would trigger if you had NOZ idle for more then 4 
seconds.

Thanks for the audit, and sending this in!

Thomas: Mind queuing this?  Probably should be marked for stable too.

Acked-by: John Stultz <johnstul@...ibm.com>


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/