[Bug 85267] New: vlc crashes with vdpau (Radeon 3850HD) [r600]

* [Bug 85267] New: vlc crashes with vdpau (Radeon 3850HD) [r600]
@ 2014-10-21  2:53 bugzilla-daemon
  2014-10-21  3:42 ` [Bug 85267] " bugzilla-daemon
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: bugzilla-daemon @ 2014-10-21  2:53 UTC (permalink / raw)
  To: dri-devel

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https://bugs.freedesktop.org/show_bug.cgi?id=85267

            Bug ID: 85267
           Summary: vlc crashes with vdpau (Radeon 3850HD) [r600]
           Product: Mesa
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r600
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: arthur.marsh@internode.on.net

I'm using version 10.3.1-1 on Debian of most mesa-related packages and Linux
kernel 3.18.0-rc1 from Linus' git head.

replaying a particular dvd in VLC triggers some errors:

(see also http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=766058 )

vdpau-related packages are also installed;

when I ran the dvd in VLC under valgrind I encountered:

(comments are from michel@daenzer.net )

> ==13424== Invalid read of size 1
> ==13424==    at 0x1A8789C0: r600_bind_blend_state_internal (in /usr/lib/x86_64-linux-gnu/vdpau/libvdpau_r600.so.1.0.0)
> ==13424==    by 0x1A6723C0: blitter_restore_fragment_states (in /usr/lib/x86_64-linux-gnu/vdpau/libvdpau_r600.so.1.0.0)
> ==13424==    by 0x1A675C47: util_blitter_clear_render_target (in /usr/lib/x86_64-linux-gnu/vdpau/libvdpau_r600.so.1.0.0)
> ==13424==    by 0x1A852985: r600_clear_render_target (in /usr/lib/x86_64-linux-gnu/vdpau/libvdpau_r600.so.1.0.0)
> ==13424==    by 0x1A69D9A9: vl_compositor_render (in /usr/lib/x86_64-linux-gnu/vdpau/libvdpau_r600.so.1.0.0)
> ==13424==    by 0x1A629E96: vlVdpPresentationQueueDisplay (in /usr/lib/x86_64-linux-gnu/vdpau/libvdpau_r600.so.1.0.0)
> ==13424==    by 0x1F2F80A3: Queue (in /usr/lib/vlc/plugins/vdpau/libvdpau_display_plugin.so)
> ==13424==    by 0x30D0E6DB48: ThreadDisplayPicture (in /usr/lib/libvlccore.so.8.0.0)
> ==13424==    by 0x30D0E6DEB2: Thread (in /usr/lib/libvlccore.so.8.0.0)
> ==13424==    by 0x30022080A3: start_thread (pthread_create.c:309)
> ==13424==  Address 0xedfe51d is 61 bytes inside a block of size 64 free'd
> ==13424==    at 0x4A08E90: free (vg_replace_malloc.c:473)
> ==13424==    by 0x1A62C7DD: vlVdpOutputSurfaceRenderBitmapSurface (in /usr/lib/x86_64-linux-gnu/vdpau/libvdpau_r600.so.1.0.0)
> ==13424==    by 0x1F2F8200: Queue (in /usr/lib/vlc/plugins/vdpau/libvdpau_display_plugin.so)
> ==13424==    by 0x30D0E6DB48: ThreadDisplayPicture (in /usr/lib/libvlccore.so.8.0.0)
> ==13424==    by 0x30D0E6DEB2: Thread (in /usr/lib/libvlccore.so.8.0.0)
> ==13424==    by 0x30022080A3: start_thread (pthread_create.c:309)

This looks like a use-after-free bug in the Mesa r600g driver. Can you report
this upstream at https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa ,
component Drivers/Gallium/r600?

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