From: Greg KH <greg@kroah.com>
To: Junfeng Yang <yjf@stanford.edu>
Cc: linux-kernel@vger.kernel.org, mc@cs.stanford.edu
Subject: Re: [CHECKER] 120 potential dereference to invalid pointers errors for linux 2.4.1
Date: Sat, 17 Mar 2001 13:43:18 -0800 [thread overview]
Message-ID: <20010317134318.A6382@wirex.com> (raw)
In-Reply-To: <Pine.GSO.4.31.0103170126540.14147-100000@elaine24.Stanford.EDU>
In-Reply-To: <Pine.GSO.4.31.0103170126540.14147-100000@elaine24.Stanford.EDU>; from yjf@stanford.edu on Sat, Mar 17, 2001 at 01:30:54AM -0800
On Sat, Mar 17, 2001 at 01:30:54AM -0800, Junfeng Yang wrote:
> ---------------------------------------------------------
> [BUG] dereference to invalid pointer "bluetooth" in error message
> /u2/acc/oses/linux/2.4.1/drivers/usb/bluetooth.c:924:bluetooth_read_bulk_callback: ERROR:NULL:828:924: Using NULL ptr "bluetooth" illegally! set by 'get_usb_bluetooth':828
>
> Start --->
> struct usb_bluetooth *bluetooth = get_usb_bluetooth ((struct usb_bluetooth *)urb->context, __FUNCTION__);
> unsigned char *data = urb->transfer_buffer;
> unsigned int count = urb->actual_length;
> unsigned int i;
> unsigned int packet_size;
>
> ... DELETED 88 lines ...
>
> bluetooth->bulk_packet_pos = 0;
> }
>
> exit:
> Error --->
> FILL_BULK_URB(bluetooth->read_urb, bluetooth->dev,
> usb_rcvbulkpipe(bluetooth->dev, bluetooth->bulk_in_endpointAddress),
This has already been fixed in a patch that was sent to the
linux-usb-devel and bluetooth mailing lists, but hasn't made it into the
kernel tree yet.
But good catch!
thanks,
greg k-h
--
greg@(kroah|wirex).com
http://immunix.org/~greg
next prev parent reply other threads:[~2001-03-17 21:40 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-03-17 9:30 [CHECKER] 120 potential dereference to invalid pointers errors for linux 2.4.1 Junfeng Yang
2001-03-17 12:31 ` Mitchell Blank Jr
2001-03-17 19:02 ` Andy Chou
2001-03-17 21:43 ` Greg KH [this message]
2001-03-18 11:29 ` [CHECKER] 120 potential dereference to invalid pointers errors forlinux 2.4.1 Jeff Garzik
2001-03-18 12:16 ` Keith Owens
2001-03-19 16:24 ` Andreas Dilger
2001-03-21 19:35 ` [CHECKER] 120 potential dereference to invalid pointers errors Benjamin Chelf
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