[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Message-ID: <4CE483C0.4090800@redhat.com>
Date: Thu, 18 Nov 2010 09:39:12 +0800
From: Eugene Teo <eugene@...hat.com>
To: oss-security@...ts.openwall.com
CC: Dan Rosenberg <dan.j.rosenberg@...il.com>
Subject: Re: CVE request: kernel: integer overflow in RDS
On 11/18/2010 12:58 AM, Dan Rosenberg wrote:
> In rds_cmsg_rdma_args(), the user-provided args->nr_local value is
> restricted to less than UINT_MAX. This needs a tighter upper bound,
> since the calculation of total iov_size can overflow, resulting in a
> small sock_kmalloc() allocation. This would probably just result in
> walking off the heap and crashing when calling rds_rdma_pages() with a
> high count value. If it somehow doesn't crash here, then memory
> corruption could occur soon after.
>
> This is closely related to CVE-2010-3865
> (http://www.spinics.net/lists/netdev/msg145359.html), which also
> concerned various integer overflow and memory corruption issues in
> rds_cmsg_rdma_args(). In fact, I'd say it's due to an incomplete fix.
>
> Reference:
> http://marc.info/?l=linux-netdev&m=129001184803080&w=2
Please use CVE-2010-4175. Thanks.
Eugene
--
main(i) { putchar(182623909 >> (i-1) * 5&31|!!(i<7)<<6) && main(++i); }
Powered by blists - more mailing lists
Please check out the
Open Source Software Security Wiki, which is counterpart to this
mailing list.
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
