From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:35033) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XlL3m-0001dT-1A for qemu-devel@nongnu.org; Mon, 03 Nov 2014 12:05:00 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XlL3f-0001xs-Ip for qemu-devel@nongnu.org; Mon, 03 Nov 2014 12:04:53 -0500 Received: from mx1.redhat.com ([209.132.183.28]:55805) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XlL3f-0001xd-BZ for qemu-devel@nongnu.org; Mon, 03 Nov 2014 12:04:47 -0500 From: Max Reitz Date: Mon, 3 Nov 2014 18:04:23 +0100 Message-Id: <1415034271-8774-5-git-send-email-mreitz@redhat.com> In-Reply-To: <1415034271-8774-1-git-send-email-mreitz@redhat.com> References: <1415034271-8774-1-git-send-email-mreitz@redhat.com> Subject: [Qemu-devel] [PATCH 04/12] qcow2/overlaps: Protect image header List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Kevin Wolf , =?UTF-8?q?Beno=C3=AEt=20Canet?= , Peter Lieven , Max Reitz , Stefan Hajnoczi Enter the image header into the metadata list to protect it against accidental modifications. Signed-off-by: Max Reitz --- block/qcow2.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/block/qcow2.c b/block/qcow2.c index f80f9ed..19ac2df 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -751,6 +751,8 @@ static int qcow2_open(BlockDriverState *bs, QDict *options, int flags, } } + qcow2_metadata_list_enter(bs, 0, 1, QCOW2_OL_MAIN_HEADER); + s->l2_bits = s->cluster_bits - 3; /* L2 is always one cluster */ s->l2_size = 1 << s->l2_bits; /* 2^(s->refcount_order - 3) is the refcount width in bytes */ -- 1.9.3