From: Greg KH <greg@kroah.com>
To: Junfeng Yang <yjf@stanford.edu>
Cc: linux-kernel@vger.kernel.org, Chris Wright <chris@wirex.com>,
mc@cs.stanford.edu
Subject: Re: [CHECKER] 30 potential dereference of user-pointer errors
Date: Tue, 29 Apr 2003 00:26:08 -0700 [thread overview]
Message-ID: <20030429072608.GB4616@kroah.com> (raw)
In-Reply-To: <Pine.GSO.4.44.0304251855390.21961-100000@elaine24.Stanford.EDU>
On Fri, Apr 25, 2003 at 07:18:02PM -0700, Junfeng Yang wrote:
> [BUG] pointer (rdwr_arg.msgs[i]) points to user space
> /home/junfeng/linux-tainted/drivers/i2c/i2c-dev.c:230:i2cdev_ioctl: ERROR:TAINTED:230:230: dereferencing tainted ptr 'rdwr_arg.msgs + i * 12' [Callstack: ]
>
> if(rdwr_pa[i].buf == NULL)
> {
> res = -ENOMEM;
> break;
> }
>
> Error --->
> if(copy_from_user(rdwr_pa[i].buf,
> rdwr_arg.msgs[i].buf,
> rdwr_pa[i].len))
> {
This one should be already be fixed in the 2.5.68 kernel.
thanks,
greg k-h
next prev parent reply other threads:[~2003-04-29 7:12 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-04 11:12 [CHECKER] potential races in kernel/*.c mm/*.c net/*ipv4*.c Dawson Engler
2003-03-04 12:24 ` Hugh Dickins
2003-03-04 13:23 ` Martin Josefsson
2003-03-21 6:33 ` [CHECKER] potential dereference of user pointer errors Junfeng Yang
2003-03-21 21:44 ` Chris Wright
2003-03-21 21:58 ` Junfeng Yang
2003-03-21 22:06 ` Chris Wright
2003-03-21 22:08 ` Junfeng Yang
2003-03-21 22:15 ` Chris Wright
2003-03-22 20:49 ` Alan Cox
2003-03-22 20:19 ` Chris Wright
2003-03-21 23:55 ` Chris Wright
2003-03-27 8:07 ` Jan Kasprzak
2003-03-27 17:10 ` Chris Wright
2003-04-21 7:49 ` [CHECKER] Help Needed! Junfeng Yang
2003-04-21 21:26 ` Chris Wright
2003-04-26 2:18 ` [CHECKER] 30 potential dereference of user-pointer errors Junfeng Yang
2003-04-27 9:26 ` James Morris
2003-04-28 1:55 ` Junfeng Yang
2003-04-27 20:18 ` Nick Holloway
2003-04-27 21:14 ` Junfeng Yang
2003-04-27 21:29 ` Junfeng Yang
2003-04-28 6:43 ` [CHECKER] 3 potential user-pointer errors in drivers/usb/serial that can print out arbitrary kernel data Junfeng Yang
2003-04-29 7:25 ` Greg KH
2003-04-29 9:14 ` Junfeng Yang
2003-04-28 6:50 ` [CHECKER] 8 potential user-pointer errors that allow arbitrary writes to kernel Junfeng Yang
2003-04-28 12:49 ` Alan Cox
2003-04-28 19:11 ` Junfeng Yang
2003-04-29 0:02 ` [CHECKER] 5 potential user-pointer errors in write_proc Junfeng Yang
2003-04-29 7:26 ` Greg KH [this message]
2003-03-22 0:15 ` [CHECKER] potential dereference of user pointer errors Chris Wright
2003-03-22 0:32 ` Greg KH
2003-03-22 0:47 ` Chris Wright
2003-03-22 1:00 ` Greg KH
2003-03-22 0:32 ` Chris Wright
2003-03-23 23:10 ` Junfeng Yang
2003-03-24 0:24 ` [CHECKER] 63 potential calling blocking functions with locks held errors Junfeng Yang
2003-03-24 12:35 ` [CHECKER] 8 potential calling blocking kmalloc(GFP_KERNEL) " Junfeng Yang
2003-03-24 0:29 ` [CHECKER] 1 potential double unlock error Junfeng Yang
2003-03-24 9:07 ` [CHECKER] potential dereference of user pointer errors Jaroslav Kysela
2003-03-24 22:28 ` Raja R Harinath
2003-03-25 0:44 ` David S. Miller
2003-03-25 18:52 ` Raja R Harinath
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