From: Florian Weimer <fw@deneb.enyo.de>
To: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Cc: Andreas Gruenbacher <agruen@suse.de>, Olaf Kirch <okir@suse.de>,
Trond Myklebust <Trond.Myklebust@netapp.com>
Subject: Potential xdr_xcode_array2 security issue (was: Re: [PATCH] RPC: Encode and decode arbitrary XDR arrays)
Date: Thu, 23 Jun 2005 07:48:41 +0200 [thread overview]
Message-ID: <87y8911v46.fsf@deneb.enyo.de> (raw)
In-Reply-To: <200506230502.j5N52PWP007955@hera.kernel.org> (Linux Kernel Mailing List's message of "Wed, 22 Jun 2005 22:02:25 -0700")
* Linux Kernel Mailing List:
> +xdr_xcode_array2(struct xdr_buf *buf, unsigned int base,
> + struct xdr_array2_desc *desc, int encode)
> +{
> + char *elem = NULL, *c;
> + unsigned int copied = 0, todo, avail_here;
> + struct page **ppages = NULL;
> + int err;
> +
> + if (encode) {
> + if (xdr_encode_word(buf, base, desc->array_len) != 0)
> + return -EINVAL;
> + } else {
> + if (xdr_decode_word(buf, base, &desc->array_len) != 0 ||
> + (unsigned long) base + 4 + desc->array_len *
> + desc->elem_size > buf->len)
> + return -EINVAL;
> + }
This looks suspiciously like CVE-2002-0391.
next parent reply other threads:[~2005-06-23 5:48 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200506230502.j5N52PWP007955@hera.kernel.org>
2005-06-23 5:48 ` Florian Weimer [this message]
2005-06-23 9:53 ` Potential xdr_xcode_array2 security issue (was: Re: [PATCH] RPC: Encode and decode arbitrary XDR arrays) Andreas Gruenbacher
2005-06-23 10:45 ` Potential xdr_xcode_array2 security issue Florian Weimer
2005-06-23 11:00 ` Andreas Gruenbacher
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