| Summary: | Update request: virtualbox 5.1.30 | ||
|---|---|---|---|
| Product: | Mageia | Reporter: | Thomas Backlund <tmb> |
| Component: | Security | Assignee: | QA Team <qa-bugs> |
| Status: | RESOLVED FIXED | QA Contact: | Sec team <security> |
| Severity: | normal | ||
| Priority: | Normal | CC: | jim, mageia, sysadmin-bugs, tarazed25, wilcal.int |
| Version: | 6 | Keywords: | validated_update |
| Target Milestone: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | MGA5TOO MGA5-64-OK MGA6-64-OK | ||
| Source RPM: | virtualbox | CVE: | |
| Status comment: | |||
| Bug Depends on: | 21852 | ||
| Bug Blocks: | |||
Mga5: i586: dkms-vboxadditions-5.1.30-1.mga5.noarch.rpm dkms-virtualbox-5.1.30-1.mga5.noarch.rpm python-virtualbox-5.1.30-1.mga5.i586.rpm virtualbox-5.1.30-1.mga5.i586.rpm virtualbox-devel-5.1.30-1.mga5.i586.rpm virtualbox-doc-5.1.30-1.mga5.noarch.rpm virtualbox-guest-additions-5.1.30-1.mga5.i586.rpm x11-driver-video-vboxvideo-5.1.30-1.mga5.i586.rpm x86_64: dkms-vboxadditions-5.1.30-1.mga5.noarch.rpm dkms-virtualbox-5.1.30-1.mga5.noarch.rpm python-virtualbox-5.1.30-1.mga5.x86_64.rpm virtualbox-5.1.30-1.mga5.x86_64.rpm virtualbox-devel-5.1.30-1.mga5.x86_64.rpm virtualbox-doc-5.1.30-1.mga5.noarch.rpm virtualbox-guest-additions-5.1.30-1.mga5.x86_64.rpm x11-driver-video-vboxvideo-5.1.30-1.mga5.x86_64.rpm Note: mga5 kmods will be built after current 4.4.92 kernel is validated and pushed Depends on:
(none) =>
21852 Mga6: i586: dkms-vboxadditions-5.1.30-1.mga6.noarch.rpm dkms-virtualbox-5.1.30-1.mga6.noarch.rpm python-virtualbox-5.1.30-1.mga6.i586.rpm virtualbox-5.1.30-1.mga6.i586.rpm virtualbox-devel-5.1.30-1.mga6.i586.rpm virtualbox-doc-5.1.30-1.mga6.noarch.rpm virtualbox-guest-additions-5.1.30-1.mga6.i586.rpm x11-driver-video-vboxvideo-5.1.30-1.mga6.i586.rpm vboxadditions-kernel-4.9.56-desktop-1.mga6-5.1.30-1.mga6.i586.rpm vboxadditions-kernel-4.9.56-desktop586-1.mga6-5.1.30-1.mga6.i586.rpm vboxadditions-kernel-4.9.56-server-1.mga6-5.1.30-1.mga6.i586.rpm vboxadditions-kernel-desktop586-latest-5.1.30-1.mga6.i586.rpm vboxadditions-kernel-desktop-latest-5.1.30-1.mga6.i586.rpm vboxadditions-kernel-server-latest-5.1.30-1.mga6.i586.rpm virtualbox-kernel-4.9.56-desktop-1.mga6-5.1.30-1.mga6.i586.rpm virtualbox-kernel-4.9.56-desktop586-1.mga6-5.1.30-1.mga6.i586.rpm virtualbox-kernel-4.9.56-server-1.mga6-5.1.30-1.mga6.i586.rpm virtualbox-kernel-desktop586-latest-5.1.30-1.mga6.i586.rpm virtualbox-kernel-desktop-latest-5.1.30-1.mga6.i586.rpm virtualbox-kernel-server-latest-5.1.30-1.mga6.i586.rpm x86_64: dkms-vboxadditions-5.1.30-1.mga6.noarch.rpm dkms-virtualbox-5.1.30-1.mga6.noarch.rpm python-virtualbox-5.1.30-1.mga6.x86_64.rpm virtualbox-5.1.30-1.mga6.x86_64.rpm virtualbox-devel-5.1.30-1.mga6.x86_64.rpm virtualbox-doc-5.1.30-1.mga6.noarch.rpm virtualbox-guest-additions-5.1.30-1.mga6.x86_64.rpm x11-driver-video-vboxvideo-5.1.30-1.mga6.x86_64.rpm vboxadditions-kernel-4.9.56-desktop-1.mga6-5.1.30-1.mga6.x86_64.rpm vboxadditions-kernel-4.9.56-server-1.mga6-5.1.30-1.mga6.x86_64.rpm vboxadditions-kernel-desktop-latest-5.1.30-1.mga6.x86_64.rpm vboxadditions-kernel-server-latest-5.1.30-1.mga6.x86_64.rpm virtualbox-kernel-4.9.56-desktop-1.mga6-5.1.30-1.mga6.x86_64.rpm virtualbox-kernel-4.9.56-server-1.mga6-5.1.30-1.mga6.x86_64.rpm virtualbox-kernel-desktop-latest-5.1.30-1.mga6.x86_64.rpm virtualbox-kernel-server-latest-5.1.30-1.mga6.x86_64.rpm on mga6-64 $ uname -r 4.9.56-desktop-1.mga6 Packages installed cleanly: - virtualbox-5.1.30-1.mga6.x86_64 - virtualbox-kernel-4.9.56-desktop-1.mga6-5.1.30-1.mga6.x86_64 - virtualbox-kernel-desktop-latest-5.1.30-1.mga6.x86_64 extension pack upgraded cleanly virtualbox and client launched normally looks OK for mga6-64 CC:
(none) =>
jim on mga6-32 in a vbox VM $ uname -r 4.9.56-desktop-1.mga6 Packages installed cleanly: - vboxadditions-kernel-4.9.56-desktop-1.mga6-5.1.30-1.mga6.i586 - vboxadditions-kernel-desktop-latest-5.1.30-1.mga6.i586 - virtualbox-guest-additions-5.1.30-1.mga6.i586 - x11-driver-video-vboxvideo-5.1.30-1.mga6.i586 VM re-booted normally No regressions noted looks OK for mga6-32 in a vbox VM Installed and tested without issues. Host System: Mageia 5, x86_64, Plasma DE, Intel CPU, nVidia GPU with proprietary driver nvidia340. Guest Systems: - Windows XP - Windows 7 - Windows 10 - Mageia 5, x86_64, Plasma DE - Mageia 6, x86_64, Plasma DE Tests involved booting, updating, rebooting, browsing with firefox and running some other programs. All seems OK. No regressions. $ uname -a Linux marte 4.4.92-desktop-1.mga5 #1 SMP Thu Oct 12 20:14:45 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux $ rpm -qa | egrep 'kernel|vbox|virtualbox|dkms' | sort dkms-2.0.19-34.1.mga5 dkms-minimal-2.0.19-34.1.mga5 dkms-nvidia340-340.101-1.mga5.nonfree dkms-virtualbox-5.1.30-1.mga5 kernel-desktop-4.4.92-1.mga5-1-1.mga5 kernel-desktop-devel-4.4.92-1.mga5-1-1.mga5 kernel-desktop-devel-latest-4.4.92-1.mga5 kernel-desktop-latest-4.4.92-1.mga5 kernel-firmware-20160409-1.mga5 kernel-firmware-nonfree-20160914-1.mga5.nonfree kernel-userspace-headers-4.4.92-1.mga5 nvidia340-kernel-desktop-latest-340.96-6.mga5.nonfree virtualbox-5.1.30-1.mga5 virtualbox-doc-5.1.30-1.mga5 CC:
(none) =>
mageia Mga5 kmods: i586: vboxadditions-kernel-4.4.92-desktop-1.mga5-5.1.30-1.mga5.i586.rpm vboxadditions-kernel-4.4.92-desktop586-1.mga5-5.1.30-1.mga5.i586.rpm vboxadditions-kernel-4.4.92-server-1.mga5-5.1.30-1.mga5.i586.rpm vboxadditions-kernel-desktop586-latest-5.1.30-1.mga5.i586.rpm vboxadditions-kernel-desktop-latest-5.1.30-1.mga5.i586.rpm vboxadditions-kernel-server-latest-5.1.30-1.mga5.i586.rpm virtualbox-kernel-4.4.92-desktop-1.mga5-5.1.30-1.mga5.i586.rpm virtualbox-kernel-4.4.92-desktop586-1.mga5-5.1.30-1.mga5.i586.rpm virtualbox-kernel-4.4.92-server-1.mga5-5.1.30-1.mga5.i586.rpm virtualbox-kernel-desktop586-latest-5.1.30-1.mga5.i586.rpm virtualbox-kernel-desktop-latest-5.1.30-1.mga5.i586.rpm virtualbox-kernel-server-latest-5.1.30-1.mga5.i586.rpm x86_64: vboxadditions-kernel-4.4.92-desktop-1.mga5-5.1.30-1.mga5.x86_64.rpm vboxadditions-kernel-4.4.92-server-1.mga5-5.1.30-1.mga5.x86_64.rpm vboxadditions-kernel-desktop-latest-5.1.30-1.mga5.x86_64.rpm vboxadditions-kernel-server-latest-5.1.30-1.mga5.x86_64.rpm virtualbox-kernel-4.4.92-desktop-1.mga5-5.1.30-1.mga5.x86_64.rpm virtualbox-kernel-4.4.92-server-1.mga5-5.1.30-1.mga5.x86_64.rpm virtualbox-kernel-desktop-latest-5.1.30-1.mga5.x86_64.rpm virtualbox-kernel-server-latest-5.1.30-1.mga5.x86_64.rpm On mga5-64 $ uname -r 4.4.92-desktop-1.mga5 packages installed cleanly: - virtualbox-5.1.30-1.mga5.x86_64 - virtualbox-doc-5.1.30-1.mga5.noarch - virtualbox-kernel-4.4.92-desktop-1.mga5-5.1.30-1.mga5.x86_64 - virtualbox-kernel-desktop-latest-5.1.30-1.mga5.x86_64 Virtualbox and client launched normally Extension pack installed cleanly looks OK for mga5-64 on mga5-32 in a vbox VM $ uname -r 4.4.92-desktop-1.mga5 packages installed cleanly: - vboxadditions-kernel-4.4.92-desktop-1.mga5-5.1.30-1.mga5.i586 - vboxadditions-kernel-desktop-latest-5.1.30-1.mga5.i586 - virtualbox-guest-additions-5.1.30-1.mga5.i586 - x11-driver-video-vboxvideo-5.1.30-1.mga5.i586 VM re-booted normally No regressions noted looks OK for mga5-32 in a vbox VM On real hardware, M6, Plasma, 64-bit
initial install:
kernel-desktop-latest
virtualbox vboxadditions-kernel-desktop-latest dkms-virtualbox
virtualbox-guest-additions virtualbox-kernel-desktop-latest x11-driver-video-vboxvideo
kernel-desktop-devel-latest dkms-nvidia-current
[root@localhost wilcal]# uname -a
Linux localhost 4.9.56-desktop-1.mga6 #1 SMP Thu Oct 12 22:55:31 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
[root@localhost wilcal]# urpmi kernel-desktop-latest
Package kernel-desktop-latest-4.9.56-1.mga6.x86_64 is already installed
[root@localhost wilcal]# urpmi virtualbox
Package virtualbox-5.1.26-1.mga6.x86_64 is already installed
[root@localhost wilcal]# urpmi vboxadditions-kernel-desktop-latest
Package vboxadditions-kernel-desktop-latest-5.1.26-6.mga6.x86_64 is already installed
[root@localhost wilcal]# urpmi dkms-virtualbox
Package dkms-virtualbox-5.1.26-1.mga6.noarch is already installed
[root@localhost wilcal]# urpmi virtualbox-guest-additions
Package virtualbox-guest-additions-5.1.26-1.mga6.x86_64 is already installed
[root@localhost wilcal]# urpmi virtualbox-kernel-desktop-latest
Package virtualbox-kernel-desktop-latest-5.1.26-6.mga6.x86_64 is already installed
[root@localhost wilcal]# urpmi x11-driver-video-vboxvideo
Package x11-driver-video-vboxvideo-5.1.26-1.mga6.x86_64 is already installed
[root@localhost wilcal]# urpmi kernel-desktop-devel-latest
Package kernel-desktop-devel-latest-4.9.56-1.mga6.x86_64 is already installed
[root@localhost wilcal]# urpmi dkms-nvidia-current
Package dkms-nvidia-current-384.59-1.mga6.nonfree.x86_64 is already installed
[wilcal@localhost ~]$ lspci -k
01:00.0 VGA compatible controller: NVIDIA Corporation GF108 [GeForce GT 440] (rev a1)
Subsystem: Gigabyte Technology Co., Ltd Device 3518
Kernel driver in use: nvidia
Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia_current
M6 i586 Xfce LiveDVD runs as a Vbox client.
Boots to a working desktop. Common apps work.
Screen sizes are correct.
install or check:
kernel-desktop-latest
virtualbox vboxadditions-kernel-desktop-latest dkms-virtualbox
virtualbox-guest-additions virtualbox-kernel-desktop-latest x11-driver-video-vboxvideo
kernel-desktop-devel-latest nvidia-current-kernel-desktop-latest
from updates_testing
[root@localhost wilcal]# uname -a
Linux localhost 4.9.40-desktop-1.mga6 #1 SMP Fri Jul 28 00:49:58 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
[root@localhost wilcal]# urpmi kernel-desktop-latest
Package kernel-desktop-latest-4.9.40-1.mga6.x86_64 is already installed
[root@localhost wilcal]# urpmi virtualbox
Package virtualbox-5.1.30-1.mga6.x86_64 is already installed
[root@localhost wilcal]# urpmi vboxadditions-kernel-desktop-latest
Package vboxadditions-kernel-desktop-latest-5.1.30-1.mga6.x86_64 is already installed
[root@localhost wilcal]# urpmi dkms-virtualbox
Package dkms-virtualbox-5.1.30-1.mga6.noarch is already installed
[root@localhost wilcal]# urpmi virtualbox-guest-additions
Package virtualbox-guest-additions-5.1.30-1.mga6.x86_64 is already installed
[root@localhost wilcal]# urpmi virtualbox-kernel-desktop-latest
Package virtualbox-kernel-desktop-latest-5.1.30-1.mga6.x86_64 is already installed
[root@localhost wilcal]# urpmi x11-driver-video-vboxvideo
Package x11-driver-video-vboxvideo-5.1.30-1.mga6.x86_64 is already installed
[root@localhost wilcal]# urpmi kernel-desktop-devel-latest
Package kernel-desktop-devel-latest-4.9.56-1.mga6.x86_64 is already installed
[root@localhost wilcal]# urpmi dkms-nvidia-current
Package dkms-nvidia-current-375.66-3.mga6.nonfree.x86_64 is already installed
[wilcal@localhost ~]$ lspci -k
01:00.0 VGA compatible controller: NVIDIA Corporation GF108 [GeForce GT 440] (rev a1)
Subsystem: Gigabyte Technology Co., Ltd Device 3518
Kernel driver in use: nvidia
Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia_current
System boots to a working desktop. Common apps work.
Previously created M6 i586 Xfce LiveDVD runs as a Vbox client.
M6 x86_64 Gnome LiveDVD runs as a Vbox client.
M6 x86_64 Plasma LiveDVD, installs and updates as a Vbox client.
Test platform:
Intel Core i7-2600K Sandy Bridge 3.4GHz
GIGABYTE GA-Z68X-UD3-B3 LGA 1155 MoBo
GIGABYTE GV-N440D3-1GI Nvidia GeForce GT 440 (Fermi) 1GB
RTL8111/8168B PCI Express 1Gbit Ethernet
DRAM 16GB (4 x 4GB)
Samsung 256GB SSDCC:
(none) =>
wilcal.int mga5::x86_64 kernel 4.4.92-desktop-1.mga5 Updated virtualbox. Launched a 64-bit guest running 4.9.56-desktop-1.mga6. Xfce desktop Writing this report in firefox in the vbox. Ran mcc for a tour of the hardware. Looked like CPU #1 on the host was being used by the guest OS. thunar running fine. Downloaded some images from APOD and ran ristretto from the commandline to view them. Used LibreOffice writer to compose a dummy letter. Installed opensshd-server and enabled the sshd service. logged in to the host system and out again. Copied a video file from the host. parole could not play it because of a gstreamer backend error. This is a very bare-bones system. Copied the sudoers file from the host to the guest. Played a short video courtesy of vlc. Mounted a network share and accessed it. Remote login - played an HD video using the remote vlc. It was slow and pixelated - a lot of hoops to jump through. Better performance with a lower resolution video in black and white. Keyboard response was close to instantaneous. This looks fine for 64 bits. CC:
(none) =>
tarazed25 On real hardware, M5.1, KDE4, 64-bit
initial install:
kernel-desktop-latest
virtualbox vboxadditions-kernel-desktop-latest dkms-virtualbox
virtualbox-guest-additions virtualbox-kernel-desktop-latest x11-driver-video-vboxvideo
kernel-desktop-devel-latest dkms-nvidia-current
[root@localhost wilcal]# uname -a
Linux localhost 4.4.92-desktop-1.mga5 #1 SMP Thu Oct 12 20:14:45 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
[root@localhost wilcal]# urpmi kernel-desktop-latest
Package kernel-desktop-latest-4.4.92-1.mga5.x86_64 is already installed
[root@localhost wilcal]# urpmi virtualbox
Package virtualbox-5.1.26-1.mga5.x86_64 is already installed
[root@localhost wilcal]# urpmi vboxadditions-kernel-desktop-latest
Package vboxadditions-kernel-desktop-latest-5.1.26-4.mga5.x86_64 is already installed
[root@localhost wilcal]# urpmi dkms-virtualbox
Package dkms-virtualbox-5.1.26-1.mga5.noarch is already installed
[root@localhost wilcal]# urpmi virtualbox-guest-additions
Package virtualbox-guest-additions-5.1.26-1.mga5.x86_64 is already installed
[root@localhost wilcal]# urpmi virtualbox-kernel-desktop-latest
Package virtualbox-kernel-desktop-latest-5.1.26-4.mga5.x86_64 is already installed
[root@localhost wilcal]# urpmi x11-driver-video-vboxvideo
Package x11-driver-video-vboxvideo-5.1.26-1.mga5.x86_64 is already installed
[root@localhost wilcal]# urpmi kernel-desktop-devel-latest
Package kernel-desktop-devel-latest-4.4.92-1.mga5.x86_64 is already installed
[root@localhost wilcal]# urpmi dkms-nvidia-current
Package dkms-nvidia-current-384.59-1.mga5.nonfree.x86_64 is already installed
[wilcal@localhost ~]$ lspci -k
01:00.0 VGA compatible controller: NVIDIA Corporation GF108 [GeForce GT 440] (rev a1)
Subsystem: Gigabyte Technology Co., Ltd Device 3518
Kernel driver in use: nvidia
Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia_current
M6 i586 Xfce LiveDVD runs as a Vbox client.
Boots to a working desktop. Common apps work.
Screen sizes are correct.
install or check:
kernel-desktop-latest
virtualbox vboxadditions-kernel-desktop-latest dkms-virtualbox
virtualbox-guest-additions virtualbox-kernel-desktop-latest x11-driver-video-vboxvideo
kernel-desktop-devel-latest nvidia-current-kernel-desktop-latest
from updates_testing
[root@localhost wilcal]# uname -a
Linux localhost 4.9.40-desktop-1.mga6 #1 SMP Fri Jul 28 00:49:58 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
[root@localhost wilcal]# urpmi kernel-desktop-latest
Package kernel-desktop-latest-4.9.40-1.mga6.x86_64 is already installed
[root@localhost wilcal]# urpmi virtualbox
Package virtualbox-5.1.30-1.mga5.x86_64 is already installed
[root@localhost wilcal]# urpmi vboxadditions-kernel-desktop-latest
Package vboxadditions-kernel-desktop-latest-5.1.30-1.mga5.x86_64 is already installed
[root@localhost wilcal]# urpmi dkms-virtualbox
Package dkms-virtualbox-5.1.30-1.mga5.noarch is already installed
[root@localhost wilcal]# urpmi virtualbox-guest-additions
Package virtualbox-guest-additions-5.1.30-1.mga5.x86_64 is already installed
[root@localhost wilcal]# urpmi virtualbox-kernel-desktop-latest
Package virtualbox-kernel-desktop-latest-5.1.30-1.mga5.x86_64 is already installed
[root@localhost wilcal]# urpmi x11-driver-video-vboxvideo
Package x11-driver-video-vboxvideo-5.1.30-1.mga5.x86_64 is already installed
[root@localhost wilcal]# urpmi kernel-desktop-devel-latest
Package kernel-desktop-devel-latest-4.4.92-1.mga5.x86_64 is already installed
[root@localhost wilcal]# urpmi dkms-nvidia-current
Package dkms-nvidia-current-375.66-3.mga6.nonfree.x86_64 is already installed
[wilcal@localhost ~]$ lspci -k
01:00.0 VGA compatible controller: NVIDIA Corporation GF108 [GeForce GT 440] (rev a1)
Subsystem: Gigabyte Technology Co., Ltd Device 3518
Kernel driver in use: nvidia
Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia_current
System boots to a working desktop. Common apps work.
Previously created M6 i586 Xfce LiveDVD runs as a Vbox client.
M6 x86_64 Gnome LiveDVD runs as a Vbox client.
M6 x86_64 Plasma LiveDVD, installs and updates as a Vbox client.
Test platform:
Intel Core i7-2600K Sandy Bridge 3.4GHz
GIGABYTE GA-Z68X-UD3-B3 LGA 1155 MoBo
GIGABYTE GV-N440D3-1GI Nvidia GeForce GT 440 (Fermi) 1GB
RTL8111/8168B PCI Express 1Gbit Ethernet
DRAM 16GB (4 x 4GB)
OCZ 128GB SSD
This update works fine. Testing complete for MGA5 & MGA6, 64-bit Validating this update. Could someone from the sysadmin team push to updates. 32-bit operation not recommended Thanks Whiteboard:
MGA5TOO =>
MGA5TOO MGA5-64-OK MGA6-64-OK An update for this issue has been pushed to the Mageia Updates repository. https://advisories.mageia.org/MGASA-2017-0390.html Resolution:
(none) =>
FIXED |
Updated virtualbox packages fix security vulnerabilities This update provides the virtualbox 5.1.30 maintenance release, fixing security and other issues: In OpenSSL 1.1.0 before 1.1.0d, if a malicious server supplies bad parameters for a DHE or ECDHE key exchange then this can result in the client attempting to dereference a NULL pointer leading to a client crash. This could be exploited in a Denial of Service attack (CVE-2017-3730). OpenSSL is vulnerable to a denial of service, caused by an out-of-bounds read when using a specific cipher. By sending specially crafted truncated packets, a remote attacker could exploit this vulnerability using CHACHA20/POLY1305 to cause the application to crash (CVE-2017-3731). OpenSSL could allow a remote attacker to obtain sensitive information, caused by a propagation error in the BN_mod_exp() function. An attacker could exploit this vulnerability to obtain information about the private key (CVE-2017-3732). During a renegotiation handshake if the Encrypt-Then-Mac extension is negotiated where it was not in the original handshake (or vice-versa) then this can cause OpenSSL 1.1.0 before 1.1.0e to crash (dependent on ciphersuite). Both clients and servers are affected (CVE-2017-3733) A local user can exploit a flaw in the Oracle VM VirtualBox Core component to partially access data, partially modify data, and deny service (CVE-2017-10392, CVE-2017-10407, CVE-2017-10408). A local user can exploit a flaw in the Oracle VM VirtualBox Core component to partially access data, partially modify data, and partially deny service (CVE-2017-10428). For other fixes in this update see the referenced changelog. References https://www.virtualbox.org/wiki/Changelog-5.1#v30 SRPMS: 5/core virtualbox-5.1.30-1.mga5 kmod-vboxadditions-5.1.30-1.mga5 kmod-virtualbox-5.1.30-1.mga5 6/core virtualbox-5.1.30-1.mga6 kmod-vboxadditions-5.1.30-1.mga6 kmod-virtualbox-5.1.30-1.mga6