From: Oliver Neukum <oliver@neukum.org>
To: Tomas Carnecky <tom@dbservice.com>
Cc: linux-os@analogic.com, Bill Davidsen <davidsen@tmr.com>,
James Morris <jmorris@redhat.com>,
Patrick McHardy <kaber@trash.net>,
Bryan Fulton <bryan@coverity.com>,
netdev@oss.sgi.com, netfilter-devel@lists.netfilter.org,
linux-kernel@vger.kernel.org
Subject: Re: [Coverity] Untrusted user data in kernel
Date: Fri, 17 Dec 2004 20:30:04 +0100 [thread overview]
Message-ID: <200412172030.04831.oliver@neukum.org> (raw)
In-Reply-To: <41C330F7.4000806@dbservice.com>
> But the difference between you example (cp /dev/zero /dev/mem) and
> passing unchecked data to the kernel is... you _can_ check the data and
This is the difference:
static int open_port(struct inode * inode, struct file * filp)
{
return capable(CAP_SYS_RAWIO) ? 0 : -EPERM;
}
(from mem.c)
Regards
Oliver
next prev parent reply other threads:[~2004-12-17 19:30 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1103247211.3071.74.camel@localhost.localdomain>
2004-12-17 5:15 ` [Coverity] Untrusted user data in kernel James Morris
2004-12-17 5:25 ` Patrick McHardy
2004-12-17 6:45 ` James Morris
2004-12-17 13:18 ` Tomas Carnecky
2004-12-17 19:16 ` David S. Miller
2004-12-17 19:34 ` Tomas Carnecky
2004-12-17 19:30 ` David S. Miller
2004-12-17 15:47 ` Bill Davidsen
2004-12-17 16:11 ` linux-os
2004-12-17 16:31 ` Oliver Neukum
2004-12-17 18:37 ` Bill Davidsen
2004-12-17 19:18 ` Tomas Carnecky
2004-12-17 19:30 ` Oliver Neukum [this message]
2004-12-17 19:39 ` Tomas Carnecky
2004-12-18 1:42 ` Horst von Brand
2004-12-17 15:10 ` Pavel Machek
2004-12-17 15:38 ` James Morris
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