From: Joe Perches <joe@perches.com>
To: Andreas Schwab <schwab@linux-m68k.org>
Cc: Dan Carpenter <dan.carpenter@oracle.com>,
Karsten Keil <isdn@linux-pingi.de>,
"David S. Miller" <davem@davemloft.net>,
Masanari Iida <standby24x7@gmail.com>,
netdev@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: Re: [patch] isdn: fix a wrapping bug in isdn_ppp_ioctl()
Date: Wed, 10 Oct 2012 07:41:59 -0700 [thread overview]
Message-ID: <1349880119.2386.46.camel@joe-AO722> (raw)
In-Reply-To: <m2sj9m5sz5.fsf@igel.home>
On Wed, 2012-10-10 at 15:58 +0200, Andreas Schwab wrote:
> Sorry, I was misremembering the history of the bit ops. There has
> historically been issues with varying bit order, but noadays set_bit is
> always defined consistently with C shifts.
No worries. Anyway, the change was suggested to aid
reader comprehension. If it doesn't (and it seems not)
then it's not worth it.
Anyway, there is still the open question of an overrun/info
leak.
> > - if ((r = set_arg(argp, protos, 8 * sizeof(long))))
set_arg's 2nd arg is bytes not bits.
next prev parent reply other threads:[~2012-10-10 14:42 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-10 9:42 [patch] isdn: fix a wrapping bug in isdn_ppp_ioctl() Dan Carpenter
2012-10-10 10:19 ` Joe Perches
2012-10-10 10:41 ` Joe Perches
2012-10-10 10:42 ` David Laight
2012-10-10 11:15 ` Joe Perches
2012-10-10 12:05 ` Andreas Schwab
2012-10-10 13:00 ` Joe Perches
2012-10-10 13:58 ` Andreas Schwab
2012-10-10 14:41 ` Joe Perches [this message]
2012-10-10 14:59 ` David Laight
2012-10-10 15:19 ` Joe Perches
2012-10-10 15:44 ` David Laight
2012-10-10 15:52 ` Joe Perches
2012-10-12 7:49 ` Karsten Keil
2012-10-11 2:46 ` David Miller
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