I'm concerned that this bug exposes a very severe security bug in X, at least, on affected hardware.
If I understand correctly, I could create a pixmap, not initialize it, and thus gain access to various bits of previous screen real-estate. (Note that people have seen on their display desktop bits from the previous login, or from the previous *boot *provided the system hasn't been powered off.) Can we start the process now for addressing that? On Tue, Mar 20, 2012 at 1:25 AM, Launchpad Bug Tracker < 931...@bugs.launchpad.net> wrote: > This bug was fixed in the package unity-greeter - 0.2.5-0ubuntu2 > > --------------- > unity-greeter (0.2.5-0ubuntu2) precise; urgency=low > > * debian/patches/fix_login_corruption.patch: > - Fix setting of root window background pixmap. Fixes "corruption" > seen between unity-greeter and Unity start, which was actually just > random bits of VRAM in an uninitialised pixmap. (LP: #931967) > -- Christopher James Halse Rogers <r...@ubuntu.com> Tue, 20 Mar 2012 > 18:51:43 +1100 > > ** Changed in: unity-greeter (Ubuntu Precise) > Status: In Progress => Fix Released > > -- > You received this bug notification because you are a member of Goobuntu > Team, which is subscribed to the bug report. > https://bugs.launchpad.net/bugs/931967 > > Title: > Corrupted graphics after the login until the unity launcher appears > > Status in OEM Priority Project: > Triaged > Status in OEM Priority Project precise series: > In Progress > Status in “unity-greeter” package in Ubuntu: > Fix Released > Status in “unity-greeter” source package in Precise: > Fix Released > > Bug description: > With the latest updates im getting corrupted graphics - images after > the login until the unity launcher - desktop appears and this is > happening in every system restart - relogin. > > Im attaching a screenshot of what im getting , it looks like its a > combination of corrupted images from the windows that was running > while i was doing the latest updates , my last session before the > problem. > > ProblemType: Bug > DistroRelease: Ubuntu 12.04 > Package: xorg 1:7.6+10ubuntu1 > ProcVersionSignature: Ubuntu 3.2.0-15.24-generic 3.2.5 > Uname: Linux 3.2.0-15-generic x86_64 > NonfreeKernelModules: nvidia > .proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: > '/proc/driver/nvidia/gpus/0' > .proc.driver.nvidia.registry: Binary: "" > .proc.driver.nvidia.version: > NVRM version: NVIDIA UNIX x86_64 Kernel Module 290.10 Wed Nov 16 > 17:39:29 PST 2011 > GCC version: gcc version 4.6.2 (Ubuntu/Linaro 4.6.2-12ubuntu1) > .tmp.unity.support.test.0: > > ApportVersion: 1.91-0ubuntu1 > Architecture: amd64 > CompizPlugins: > [core,bailer,detection,composite,opengl,decor,regex,animation,snap,move,place,mousepoll,vpswitch,wall,resize,gnomecompat,workarounds,compiztoolbox,grid,imgpng,expo,fade,ezoom,scale,session,switcher,unityshell] > CompositorRunning: compiz > Date: Tue Feb 14 11:40:18 2012 > DistUpgraded: Log time: 2011-09-27 15:36:23.910451 > DistroCodename: precise > DistroVariant: ubuntu > GraphicsCard: > NVIDIA Corporation G86 [GeForce 8600M GS] [10de:0425] (rev a1) (prog-if > 00 [VGA controller]) > Subsystem: Sony Corporation Device [104d:9005] > InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 > (20110427.1) > JockeyStatus: > xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, > Enabled, In use) > xorg:nvidia_current_updates - NVIDIA accelerated graphics driver > (post-release updates) (Proprietary, Disabled, Not in use) > MachineType: Sony Corporation VGN-FZ31Z > PccardctlIdent: > Socket 0: > no product info available > PccardctlStatus: > Socket 0: > no card > ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-15-generic > root=UUID=12e02107-7815-4276-b7ac-7bceee898897 ro quiet splash vt.handoff=7 > SourcePackage: xorg > UpgradeStatus: Upgraded to precise on 2012-02-02 (11 days ago) > XorgConf: > Section "Device" > Identifier "Default Device" > Option "NoLogo" "True" > EndSection > dmi.bios.date: 12/21/2007 > dmi.bios.vendor: Phoenix Technologies LTD > dmi.bios.version: R2110J7 > dmi.board.asset.tag: N/A > dmi.board.name: VAIO > dmi.board.vendor: Sony Corporation > dmi.board.version: N/A > dmi.chassis.asset.tag: N/A > dmi.chassis.type: 10 > dmi.chassis.vendor: Sony Corporation > dmi.chassis.version: N/A > dmi.modalias: > dmi:bvnPhoenixTechnologiesLTD:bvrR2110J7:bd12/21/2007:svnSonyCorporation:pnVGN-FZ31Z:pvrC6006UGW:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A: > dmi.product.name: VGN-FZ31Z > dmi.product.version: C6006UGW > dmi.sys.vendor: Sony Corporation > version.compiz: compiz 1:0.9.7.0~bzr2995-0ubuntu1 > version.ia32-libs: ia32-libs 20090808ubuntu33 > version.libdrm2: libdrm2 2.4.30-1ubuntu1 > version.libgl1-mesa-dri: libgl1-mesa-dri 8.0~rc2-0ubuntu5 > version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A > version.libgl1-mesa-glx: libgl1-mesa-glx 8.0~rc2-0ubuntu5 > version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A > version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu3 > version.xserver-xorg-input-evdev: xserver-xorg-input-evdev > 1:2.6.99.901+git20120126-0ubuntu2 > version.xserver-xorg-video-ati: xserver-xorg-video-ati > 1:6.14.99~git20111219.aacbd629-0ubuntu2 > version.xserver-xorg-video-intel: xserver-xorg-video-intel > 2:2.17.0-1ubuntu3 > version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau > 1:0.0.16+git20111201+b5534a1-1build2 > > To manage notifications about this bug go to: > https://bugs.launchpad.net/oem-priority/+bug/931967/+subscriptions > -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/931967 Title: Corrupted graphics after the login until the unity launcher appears To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/931967/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
