Bug#751492: libavcodec55: Libavc causes VLC to SIGSEGV

[Andrei POPESCU]

Control: reassign -1 libavcodec55 6:10.1-1

On Vi, 13 iun 14, 15:02:53, Iván Lago Castro wrote:
> Source: libavcodec55
> Version: 6:10.1-1
> Severity: important
> 
> Dear Maintainer,
> 
>    * What led up to the situation?
> Open vlc to play a video file. The file plays ok but at some point vlc crashes.
>    * What exactly did you do (or not do) that was effective (or
>      ineffective)?
> Playing same file with another player (kaffeine) works without any problem. VLC
> crashes at the exact same point of the video every time.
> 
> I'm not exactly sure if the problem is in libavcodec55 , vlc or even my own
> file so don't hesitate to contact me if I can provide any helpful information
> for you.
> This is a gdb execution + backtrace of vlc when it crashed (in case it helps in
> any way).
> Starting program: /usr/bin/vlc
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
> VLC media player 2.1.4 Rincewind (revision 2.1.4-0-g2a072be)
> [New Thread 0x7fffeb9b2700 (LWP 3465)]
> [New Thread 0x7fffeb1b1700 (LWP 3466)]
> [New Thread 0x7fffe8902700 (LWP 3467)]
> [0x605118] main libvlc: Executar o VLC coa interface predeterminada. Use 'cvlc'
> para usar o VLC sen interface.
> [New Thread 0x7fffe8801700 (LWP 3468)]
> [New Thread 0x7fffdc1d8700 (LWP 3469)]
> [New Thread 0x7fffcf02f700 (LWP 3470)]
> [New Thread 0x7fffce8f5700 (LWP 3471)]
> [Thread 0x7fffcf02f700 (LWP 3470) exited]
> [Thread 0x7fffce8f5700 (LWP 3471) exited]
> [New Thread 0x7fffce8f5700 (LWP 3472)]
> [New Thread 0x7fffcf02f700 (LWP 3473)]
> [New Thread 0x7fffcc1bc700 (LWP 3474)]
> Fontconfig warning: FcPattern object size does not accept value "0"
> Fontconfig warning: FcPattern object size does not accept value "0"
> [New Thread 0x7fffb4164700 (LWP 3475)]
> Fontconfig warning: FcPattern object size does not accept value "0"
> Fontconfig warning: FcPattern object size does not accept value "0"
> [0x7fffa8001248] main vout display error: Failed to resize display
> [Thread 0x7fffcf02f700 (LWP 3473) exited]
> [Thread 0x7fffcc1bc700 (LWP 3474) exited]
> [Thread 0x7fffce8f5700 (LWP 3472) exited]
> [New Thread 0x7fffce8f5700 (LWP 3476)]
> [New Thread 0x7fffcc1bc700 (LWP 3477)]
> [New Thread 0x7fffcf02f700 (LWP 3478)]
> Fontconfig warning: FcPattern object size does not accept value "0"
> Fontconfig warning: FcPattern object size does not accept value "0"
> [0x7fffa8001248] main vout display error: Failed to resize display
> [0x7fffb8002cb8] mpgatofixed32 audio converter error: libmad error: bad
> main_data_begin pointer
> 
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 0x7fffcc1bc700 (LWP 3477)]
> 0x00007fffbdaeafc7 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.55
> (gdb) backtrace
> #0  0x00007fffbdaeafc7 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.55
> #1  0x00007fffbdaeb9aa in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.55
> #2  0x00007fffbd956891 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.55
> #3  0x00007fffbd95829a in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.55
> #4  0x00007fffbd946344 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.55
> #5  0x00007fffbd7c41f5 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.55
> #6  0x00007fffbd7c4a7c in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.55
> #7  0x00007fffbd9eaea3 in avcodec_decode_video2 ()
>    from /usr/lib/x86_64-linux-gnu/libavcodec.so.55
> #8  0x00007fffbe506d3d in ?? () from
> /usr/lib/vlc/plugins/codec/libavcodec_plugin.so
> #9  0x00007ffff7147baf in ?? () from /usr/lib/libvlccore.so.7
> #10 0x00007ffff7149aaa in ?? () from /usr/lib/libvlccore.so.7
> #11 0x00007ffff79ac0ca in start_thread () from /lib/x86_64-linux-
> gnu/libpthread.so.0
> #12 0x00007ffff74dcffd in clone () from /lib/x86_64-linux-gnu/libc.so.6
> 
> 
> 
> 
> -- System Information:
> Debian Release: jessie/sid
>   APT prefers testing-updates
>   APT policy: (500, 'testing-updates'), (500, 'unstable'), (500, 'testing'), (500, 'oldstable')
> Architecture: amd64 (x86_64)
> Foreign Architectures: i386
> 
> Kernel: Linux 3.14-1-amd64 (SMP w/8 CPU cores)
> Locale: LANG=gl_ES.UTF-8, LC_CTYPE=gl_ES.UTF-8 (charmap=UTF-8)
> Shell: /bin/sh linked to /bin/dash

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