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Bug#659558: libx11-6: libX11 or libxbc ignores a -display or DISPLAY, when host does not respond



tag 659558 patch upstream confirmed
kthxbye

On Sun, Feb 12, 2012 at 02:09:56 +0100, Kephra Nurmi wrote:

> Package: libx11-6
> Version: 2:1.4.4-4
> Severity: important
> 
> Dear Maintainer,
> 
> an `xterm -display thishostdoesnotexist:0` on wheezy will display on
> localhost:0 without throwing a "Can't open display" error. Same with
> xclock and all other basic X clients.
> 
> See: http://kephra.de/src/xterm-strace.txt
> Search for /193.101.47
> 
> The ECONNREFUSED (Connection refused) is ignored, and instead
> /tmp/.X11-unix/X0 used a few lines later.
> 
> The bug is likely in libX11 or libxbc.
> 
Thanks for the report.  Proposed patches:
http://patchwork.freedesktop.org/patch/9146/
http://patchwork.freedesktop.org/patch/9147/

Cheers,
Julien

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