[app-emulation/qemu] bump to include cve fixes, remove vgabios stuff from it, pin seabios to in-overlay version so we don't clash with tree

app-emulation/qemu/files/qemu-2.0.0-CVE-2014-0222.patch

@@ -0,0 +1,48 @@
+From 42eb58179b3b215bb507da3262b682b8a2ec10b5 Mon Sep 17 00:00:00 2001
+From: Kevin Wolf <kwolf@redhat.com>
+Date: Thu, 15 May 2014 16:10:11 +0200
+Subject: [PATCH] qcow1: Validate L2 table size (CVE-2014-0222)
+
+Too large L2 table sizes cause unbounded allocations. Images actually
+created by qemu-img only have 512 byte or 4k L2 tables.
+
+To keep things consistent with cluster sizes, allow ranges between 512
+bytes and 64k (in fact, down to 1 entry = 8 bytes is technically
+working, but L2 table sizes smaller than a cluster don't make a lot of
+sense).
+
+This also means that the number of bytes on the virtual disk that are
+described by the same L2 table is limited to at most 8k * 64k or 2^29,
+preventively avoiding any integer overflows.
+
+Cc: qemu-stable@nongnu.org
+Signed-off-by: Kevin Wolf <kwolf@redhat.com>
+Reviewed-by: Benoit Canet <benoit@irqsave.net>
+---
+ block/qcow.c               |  8 ++++++++
+ tests/qemu-iotests/092     | 15 +++++++++++++++
+ tests/qemu-iotests/092.out | 11 +++++++++++
+ 3 files changed, 34 insertions(+)
+
+diff --git a/block/qcow.c b/block/qcow.c
+index e60df23..e8038e5 100644
+--- a/block/qcow.c
++++ b/block/qcow.c
+@@ -139,6 +139,14 @@ static int qcow_open(BlockDriverState *bs, QDict *options, int flags,
+         goto fail;
+     }
+ 
++    /* l2_bits specifies number of entries; storing a uint64_t in each entry,
++     * so bytes = num_entries << 3. */
++    if (header.l2_bits < 9 - 3 || header.l2_bits > 16 - 3) {
++        error_setg(errp, "L2 table size must be between 512 and 64k");
++        ret = -EINVAL;
++        goto fail;
++    }
++
+     if (header.crypt_method > QCOW_CRYPT_AES) {
+         error_setg(errp, "invalid encryption method in qcow header");
+         ret = -EINVAL;
+-- 
+1.9.3
+