[Bug 70931] New: Xv causes player segfaults when 4K is decoded

[Bug 70931] New: Xv causes player segfaults when 4K is decoded

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=70931

          Priority: medium
            Bug ID: 70931
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
           Summary: Xv causes player segfaults when 4K is decoded
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: nikoli-0UDz38MK/Mo@public.gmane.org
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: Driver/nouveau
           Product: xorg

Created attachment 88194
  --> https://bugs.freedesktop.org/attachment.cgi?id=88194&action=edit
gdb output for 'mpv -vo xv sintel.mkv'

avprobe output:
Stream #0.0(eng): Video: h264 (High 4:4:4 Predictive), yuv444p10le, 4096x1744
[PAR 1:1 DAR 256:109], 24 fps, 24 tbr, 1k tbn, 48 tbc (default)

When trying to play 4K video with Xv video outputs mpv, mplayer2 and vlc
segfault.
https://github.com/mpv-player/mpv/issues/320
"the segfault is because the XvShmCreateImage API function returns a smaller
image than requested, which, if I read the manpage right, is not allowed."
My software:
Gentoo Linux amd64 stable, kernel 3.9.9-hardened, mesa-9.1.6,
xf86-video-nouveau-1.0.9, libXv-1.0.10, libdrm-2.4.46, xorg-server-1.14.3,
libav-9.10
Hardware:
01:00.0 VGA compatible controller: NVIDIA Corporation G86M [GeForce 8400M GS]
(rev a1)

Used this file for testing:
http://rutracker.org/forum/viewtopic.php?t=4131293
Can upload sample if required.
P.S. With radeon r600g this file works fine, is any 4K playable with nouveau
now?

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[Bug 70931] Xv causes player segfaults when 4K is decoded

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=70931

--- Comment #1 from Nikoli <nikoli-0UDz38MK/Mo@public.gmane.org> ---
Created attachment 88195
  --> https://bugs.freedesktop.org/attachment.cgi?id=88195&action=edit
sample.mkv

Added sample.

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[Bug 70931] Xv causes player segfaults when 4K is decoded

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=70931

--- Comment #2 from Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> ---
Created attachment 105069
  --> https://bugs.freedesktop.org/attachment.cgi?id=105069&action=edit
patch

Untested patch to get rid of the wrong size check. Unfortunately at query time
we aren't passed the port pointer by the DDX API. Instead check it at PutImage
time and return a BadMatch if you do something bad.

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[Bug 70931] Xv causes player segfaults when 4K is decoded

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https://bugs.freedesktop.org/show_bug.cgi?id=70931

Martin Peres <martin.peres-GANU6spQydw@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |MOVED
             Status|NEW                         |RESOLVED

--- Comment #3 from Martin Peres <martin.peres-GANU6spQydw@public.gmane.org> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance:
https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/issues/67.

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