[app-emulation/qemu] sync

app-emulation/qemu/files/qemu-2.1.2-vnc-sanitize-bits.patch

@@ -0,0 +1,50 @@
+https://bugs.gentoo.org/527088
+
+From e6908bfe8e07f2b452e78e677da1b45b1c0f6829 Mon Sep 17 00:00:00 2001
+From: Petr Matousek <pmatouse@redhat.com>
+Date: Mon, 27 Oct 2014 12:41:44 +0100
+Subject: [PATCH] vnc: sanitize bits_per_pixel from the client
+
+bits_per_pixel that are less than 8 could result in accessing
+non-initialized buffers later in the code due to the expectation
+that bytes_per_pixel value that is used to initialize these buffers is
+never zero.
+
+To fix this check that bits_per_pixel from the client is one of the
+values that the rfb protocol specification allows.
+
+This is CVE-2014-7815.
+
+Signed-off-by: Petr Matousek <pmatouse@redhat.com>
+
+[ kraxel: apply codestyle fix ]
+
+Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
+---
+ ui/vnc.c | 10 ++++++++++
+ 1 file changed, 10 insertions(+)
+
+diff --git a/ui/vnc.c b/ui/vnc.c
+index 0fe6eff..8bca597 100644
+--- a/ui/vnc.c
++++ b/ui/vnc.c
+@@ -2026,6 +2026,16 @@ static void set_pixel_format(VncState *vs,
+         return;
+     }
+ 
++    switch (bits_per_pixel) {
++    case 8:
++    case 16:
++    case 32:
++        break;
++    default:
++        vnc_client_error(vs);
++        return;
++    }
++
+     vs->client_pf.rmax = red_max;
+     vs->client_pf.rbits = hweight_long(red_max);
+     vs->client_pf.rshift = red_shift;
+-- 
+2.1.2
+

app-emulation/qemu/qemu-2.1.2-r1.ebuild

@@ -1,6 +1,6 @@
 # Copyright 1999-2014 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
-# $Header: /var/cvsroot/gentoo-x86/app-emulation/qemu/qemu-2.1.2.ebuild,v 1.1 2014/10/16 13:21:59 vapier Exp $
+# $Header: /var/cvsroot/gentoo-x86/app-emulation/qemu/qemu-2.1.2-r1.ebuild,v 1.1 2014/10/31 00:17:46 vapier Exp $
 
 EAPI=5
 
@@ -259,6 +259,7 @@ src_prepare() {
 
 	epatch "${FILESDIR}"/qemu-1.7.0-cflags.patch
 	epatch "${FILESDIR}"/${PN}-2.1.1-readlink-self.patch
+	epatch "${FILESDIR}"/${PN}-2.1.2-vnc-sanitize-bits.patch #527088
 	[[ -n ${BACKPORTS} ]] && \
 		EPATCH_FORCE=yes EPATCH_SUFFIX="patch" EPATCH_SOURCE="${S}/patches" \
 			epatch