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From: Stefan Hajnoczi <stefanha@gmail.com>
To: Fam Zheng <famcool@gmail.com>
Cc: kwolf@redhat.com, qemu-devel@nongnu.org, hch@lst.de
Subject: Re: [Qemu-devel] [PATCH v3 03/12] VMDK: probe for monolithicFlat images
Date: Mon, 27 Jun 2011 05:43:25 +0100	[thread overview]
Message-ID: <BANLkTikcxqAHFCSDgySR7tsRiWm0ZcnGEw@mail.gmail.com> (raw)
In-Reply-To: <1309146518-8998-4-git-send-email-famcool@gmail.com>

On Mon, Jun 27, 2011 at 4:48 AM, Fam Zheng <famcool@gmail.com> wrote:
> +            if (strncmp("version=1\n", p, strlen("version=1\n")) == 0 ||
> +                strncmp("version=1\r\n", p, strlen("version=1\r\n")) == 0 ||
> +                strncmp("version=2\n", p, strlen("version=2\n")) == 0 ||
> +                strncmp("version=2\r\n", p, strlen("version=2\r\n")) == 0) {
> +                return 100;
> +            }

If p == end - 1 then this will run off the end of the buffer.  You need to use:

strncmp("version=1\n", p, end - p);

Stefan

  reply	other threads:[~2011-06-27  4:43 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-06-27  3:48 [Qemu-devel] [PATCH v3 00/12] Adding VMDK monolithic flat support Fam Zheng
2011-06-27  3:48 ` [Qemu-devel] [PATCH v3 01/12] VMDK: introduce VmdkExtent Fam Zheng
2011-06-27  3:48 ` [Qemu-devel] [PATCH v3 02/12] VMDK: bugfix, align offset to cluster in get_whole_cluster Fam Zheng
2011-06-27  3:48 ` [Qemu-devel] [PATCH v3 03/12] VMDK: probe for monolithicFlat images Fam Zheng
2011-06-27  4:43   ` Stefan Hajnoczi [this message]
2011-06-27  5:11     ` Fam Zheng
2011-06-27  5:33       ` Stefan Hajnoczi
2011-06-27  3:48 ` [Qemu-devel] [PATCH v3 04/12] VMDK: separate vmdk_open by format version Fam Zheng
2011-06-27  4:51   ` Stefan Hajnoczi
2011-06-27  3:48 ` [Qemu-devel] [PATCH v3 05/12] VMDK: add field BDRVVmdkState.desc_offset Fam Zheng
2011-06-27  3:48 ` [Qemu-devel] [PATCH v3 06/12] VMDK: flush multiple extents Fam Zheng
2011-06-27  3:48 ` [Qemu-devel] [PATCH v3 07/12] VMDK: move 'static' cid_update flag to bs field Fam Zheng
2011-06-27  3:48 ` [Qemu-devel] [PATCH v3 08/12] VMDK: change get_cluster_offset return type Fam Zheng
2011-06-27  3:48 ` [Qemu-devel] [PATCH v3 09/12] VMDK: open/read/write for monolithicFlat image Fam Zheng
2011-06-27  4:54   ` Stefan Hajnoczi
2011-06-27  7:00     ` Fam Zheng
2011-06-27  8:10       ` Stefan Hajnoczi
2011-06-27  3:48 ` [Qemu-devel] [PATCH v3 10/12] VMDK: create different subformats Fam Zheng
2011-06-27  3:48 ` [Qemu-devel] [PATCH v3 11/12] VMDK: fix coding style Fam Zheng
2011-06-27  3:48 ` [Qemu-devel] [PATCH v3 12/12] BlockDriver: add bdrv_get_allocated_file_size() operation Fam Zheng

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